Engineering College

## Answers

**Answer 1**

Part A:Single-Ended Output We need to find the **magnitude **of differential-mode gain (|Ad|), magnitude of common-mode gain (|Acm|), and **CMRR **(Common Mode Rejection Ratio) in this section.

From the given information:

[tex]kₙW/L = 3 mA/V²,[/tex]

[tex]I = 0.2 mA,[/tex]

Rsₛ = 100 kΩ,

and RD = 10 kΩ.1. To find the Q-point, we can use the expression:

[tex](2I)/k = VGS + Vt[/tex]

Where k = kₙW/L and Vt = 0.7 V **Substituting** the given values, we get:

k = 3 mA/V²,

I = 0.2 mA,

Vt = 0.7 VThus, the Q-point is:

[tex]VGS = (2 × 0.2 mA × 1000 Ω)/3 mA + 0.7 V[/tex]

= 1.07 V2.

Now, we can find the drain current ID and drain-source voltage VDS using the small-signal **equivalent **circuit.ID = (1/2) × [tex]k(VGS - Vt)² = 0.299 m[/tex]

AVDS = VDD - ID(RD + Rs)

[tex]= 6 V - 0.299 mA(10 kΩ + 100 kΩ)[/tex]

= 2.701 V3.

To know more about **magnitude **visit:

https://brainly.com/question/31022175

#SPJ11

## Related Questions

Write a handwritten report (5-10 pages) about the underground transmission line. (Deadline for Hard- copy is 29/05/2022)

### Answers

**Underground transmission lines** are cables that carry electricity or data and are installed under the **ground**.

What is underground transmission line?

Big pipes that **transport **natural gas are called transmission lines. When they're buried underground, they're called underground transmission lines to tell them apart from the ones that are overhead. Putting cables underground has good things and bad things compared to putting them on really big **towers**.

Putting cables under the **ground **is more expensive, and fixing them if they break can take a lot of time. But cables that are buried under the ground are not affected by extreme weather conditions like hurricanes and very cold weather. It is harder for people to damage or steal cables that are under the ground.

Learn more about **transmission lines **from

https://brainly.com/question/32880643

#SPJ4

A new CFD code is developed. and it is optimised to run over many thousands of cores using MPI. For a particular benchmarking case, 26 s is required for the code to run one time step on a single cpu. Given that 99.6% of the code is parallelised, and 0.4% of the code runs in serial, calculate the time in seconds required for the code to run one time step when 11623 cpus are used. Enter a numerical value only.

### Answers

Given that 99.6% of the **code **is parallelised, and 0.4% of the code runs in serial, calculate the time in seconds required for the code to run one time step when 11623 cpus are used. The percentage of code that runs in serial = 0.4%.The percentage of code that runs in parallel = 99.6%.

Therefore, the **fraction** of the code that runs in serial = 0.004.The fraction of the code that runs in parallel = 0.996.If it takes 26 s to run on a single CPU, the time required on 11623 CPUs is given by:T = Tserial + TparallelTserial is the time for the code to run on a single CPU, which is 26 s.Tparallel is the parallel time. This is given by:Tparallel = Tserial / N + A(N - 1)Tparallel is the time taken to **complete **one time step with A cpus, where N is the total number of CPUs. A is the serial fraction of the code.

The value of A is 0.004.A value of 11623 is given for N, the total number of CPUs.Tparallel = 26 / 11623 * 0.004 * (11623 - 1)Tparallel = 0.89283 s

Therefore, the time taken to complete one time step with 11623 CPUs is:T = Tserial + TparallelT = 26 + 0.89283T = 26.8928 s

Therefore, the time **required **for the code to run one time step when 11623 cpus are used is approximately 26.8928 seconds.

To know more about **code **visit:-

https://brainly.com/question/31861153

#SPJ11

Topic: Name a medical implant that is designed using static and dynamic principles. Discuss the implant in detail. Your discussions include: in which conditions it is used?; how it is designed?; how it works (technical details)?; static and dynamic principles used in its design; material properties of the implant...

•Method: Every student will research the topic from the internet/books/papers and prepare at least 3 pages of a report. You should follow good report writing practices (your report should have an introduction, technical discussion, and conclusion sections). Only word documents are accepted; font: times new roman, font-size: 12

### Answers

There are several **medical **implants that are designed using static and dynamic principles, but one of the most common is the hip implant. A hip implant is a medical device that **replaces **the hip joint.

It is used to **alleviate **pain, increase mobility, and improve quality of life for patients suffering from arthritis or other joint problems.Hip implants are used in conditions like osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, avascular necrosis, and other forms of arthritis.

The device is also used in some cases of hip fractures or bone tumors.The hip implant is designed to replicate the natural structure and function of the hip joint. It is made up of several components, including the femoral stem, the **acetabular **cup, the ball, and the liner. The femoral stem is inserted into the femur bone, while the acetabular cup is inserted into the hip socket.

To know more about **medical **visit:

https://brainly.com/question/30958581

#SPJ11

How does laminar flame speed change with the engine’s

rotation speed (qualitatively)?

### Answers

The **laminar flame speed **is defined as the speed of the flame's front under quiescent conditions and is considered one of the most crucial combustion properties. In a hom*ogeneous mixture, the laminar flame speed is mainly determined by the fuel-air equivalence ratio, the pressure, and the temperature, with other factors playing lesser roles.

The laminar flame speed of an engine changes qualitatively with the **engine’s rotation speed** in a number of ways. The following are some of the ways:

When the rotation speed of the engine is increased, the laminar flame speed is increased. The enhancement is due to the greater mixing of the fuel and air, which increases the flame speed due to the greater mixture's energy density.

When the engine's rotation speed is decreased, the laminar flame speed decreases. This reduction occurs because as the** rotation speed **decreases, the fuel and air's mixture becomes more uneven, reducing the energy density of the mixture and reducing the laminar flame speed.

When the flame front is stretched by the flow, the laminar flame speed decreases. As the engine's rotation speed increases, the flow becomes more intense, and the flame front stretches, reducing the laminar flame speed.

When turbulence is generated, the laminar flame speed increases. When the engine's rotation speed increases, it generates more turbulence, which increases the laminar flame speed of the engine.

Laminar flame speed is directly proportional to the **reaction rate**. With an increase in engine speed, the reaction rate increases, resulting in an increase in laminar flame speed. This implies that the engine will be more efficient with higher engine speeds.

To know more about **laminar flame speed ** visit:

https://brainly.com/question/23008935

#SPJ11

Topic 4 (Group 4) As an Engineer, you are required to design a Dual-slope Analog-to-Digital (ADC) converter using Op-Amps, logic circuits, counters, capacitors and resistors. The range of Analog input is 0 to 10 V. The quantization error must be ≤ 400mV. Display the output.

### Answers

The **display output** will be a binary number that corresponds to the analog input voltage.

How to determine the output

To design a Dual-slope **Analog-to-Digital Converter** (ADC) with a quantization error of ≤ 400mV and a range of 0 to 10V, we should take the following steps to get the digital output

Connect an Op-Amp as an integrator with a **capacitor** C1 and a resistor R1. Connect the input voltage to the integrator during the charging phase and disconnect it during the discharging phase. Use a counter and a logic circuit to measure the time taken for the integrator output to reach a reference voltage. Connect the counter's output to a digital display to show the converted digital value.Use a comparator to compare the reference voltage with the integrator's output voltage during the discharging phase. Implement control logic to control the charging and discharging phases, switches, and the counter.

Learn more about **analog to digital converters **at: https://brainly.com/question/24750760

#SPJ4

Two synchronous generators need to be connected in parallel to supply a load of 10 MW. The first generator supplies three times the amount of the second generator. If the load is supplied at 50 Hz and both generators have a power drooping slope of 1.25 MW per Hz. a. (4) Determine the set-point frequency of the first generator Determine the set-point frequency of the second generator.

### Answers

In this problem, the load of 10 MW is to be** supplied** at a of 50 Hz. Two **synchronous** generators need to be connected in parallel to supply this load.

Let's assume the rating of the** second** generator as G2. Then the rating of the first generator, G1 = 3G2.From the problem statement, we know that the power drooping slope is 1.25 MW/Hz. The frequency decreases by 1 Hz when the load increases by 1.25 MW. At the set-point frequency, the generators will share the load equally.

Let's assume that the frequency of G1 is f1 and the frequency of G2 is f2. Therefore, the set-point **frequency **of the first generator (G1) is 53.33 Hz and that of the second generator (G2) is 51.11 Hz.

To know more about **synchronous **visit:

https://brainly.com/question/27189278

#SPJ11

You have a heat sink that 12'' by 4'' with a height of 1.5''. There are 9 fins. The output power from the electrical device is 20 W but you do not know the junction temperature. The ambient temperature is 40 degrees Celsisus. Below the heat sink is a fan that is blowing 300 CFM. What is the thermal resistance?

### Answers

To calculate the **thermal resistance** of the heat sink, we need to determine the temperature difference between the electrical device and the ambient temperature. Given that the electrical device output power is 20 W, we can assume that all of this power is dissipated as heat and transferred to the heat sink.

First, we need to convert the flow rate from **CFM **(cubic feet per minute) to cubic meters per second (m³/s), as follows:

Flow rate = 300 CFM

Flow rate = 300 * (0.0283168 m³/ft³) / 60 s

Flow rate = 0.1415832 m³/s

Next, we can calculate the thermal resistance using the formula:

**Thermal resistance** = (Device temperature - Ambient temperature) / Power

To calculate the device temperature, we need to consider the **convective **heat transfer from the heat sink to the ambient air. The convective heat transfer is given by the formula:

Q = h * A * (T_device - T_ambient)

Where:

Q is the heat transfer rate,

h is the convective heat transfer coefficient,

A is the surface area of the heat sink,

T_device is the device temperature,

T_ambient is the ambient temperature.

Assuming that the heat sink is the only path for heat transfer, we can assume that all the heat generated by the device is transferred to the heat sink. Therefore, the heat transfer rate (Q) is equal to the power (20 W).

We can rearrange the equation to solve for T_device:

T_device = Q / (h * A) + T_ambient

To calculate the convective heat transfer coefficient (h), we can use empirical correlations or refer to standards such as ASHRAE. Let's assume a typical value for natural convection, which is around 10 W/(m²·K).

**Given the dimensions** of the heat sink:

Width (W) = 12 inches = 0.3048 meters

Height (H) = 4 inches = 0.1016 meters

Number of fins (N) = 9

Thickness of fins (t) = 0.04 inches = 0.001016 meters

The total surface area of the heat sink can be calculated as follows:

**Total surface area** = (W * H) + (2 * N * t * W) + (2 * N * t * H)

Total surface area = (0.3048 * 0.1016) + (2 * 9 * 0.001016 * 0.3048) + (2 * 9 * 0.001016 * 0.1016)

Now we can calculate the device temperature:

T_device = 20 / (10 * Total surface area) + 40

Finally, we can calculate the thermal resistance:

Thermal resistance = (T_device - T_ambient) / Power

Plug in the values and calculate the thermal resistance.

Learn more about **thermal resistance** from the link given below.

brainly.com/question/29427458

#SPJ11

You run a corrosion test and determine that after 48 hours a Cobalt block lost 45 grams of material due to oxidation. What was the current flow (in amps) during the corrosion process? a 0.243 amps b 0.853 amps c 0.426 amps d 3.069 amps

### Answers

The rate of **corrosion** can be determined by using the formula; Rate of corrosion = (Weight loss due to corrosion/time taken for corrosion to occur) × (**Specific gravity** of material).

Where; **Weight loss** due to corrosion = 45 grams

Time taken for corrosion to occur = 48 hours

Specific gravity of material = **Density** of material/density of water

Density of cobalt (Co) = 8.9 g/cm³Density of water = 1 g/cm³

Density of Co/Density of water = 8.9/1 = 8.9

Rate of corrosion = (Weight loss due to corrosion/time taken for corrosion to occur) × (Specific gravity of material)=(45 g/48 hours) × (8.9)= 0.0526 g/hour

Current flow can be determined by the Faraday’s law of electrolysis formula;

Weight loss due to corrosion = (Current flow × Time taken for corrosion to occur × Atomic weight of metal)/ (96,485 Coulombs)

Where; Atomic weight of cobalt (Co) = 58.93 g/mole

Current flow = (Weight loss due to corrosion × 96,485 Coulombs)/(Time taken for corrosion to occur × Atomic weight of metal)= (45 g × 96,485 C)/(48 h × 60 × 60 s/h × 58.93 g/mole)= 0.243 amps

Given, Weight loss due to corrosion = 45 grams

Time taken for corrosion to occur = 48 hours

Specific gravity of cobalt = 8.9 g/cm³

We know that, the rate of corrosion can be determined by using the formula; Rate of corrosion = (Weight loss due to corrosion/time taken for corrosion to occur) × (Specific gravity of material).By substituting the given values, we get;Rate of corrosion = (45 g/48 hours) × (8.9)= 0.0526 g/hour

Faraday’s law of electrolysis formula is given by;

Weight loss due to corrosion = (Current flow × Time taken for corrosion to occur × Atomic weight of metal)/ (96,485 Coulombs)

Atomic weight of cobalt (Co) = 58.93 g/mole

By substituting the given values, we get;

Current flow = (Weight loss due to corrosion × 96,485 Coulombs)/(Time taken for corrosion to occur × Atomic weight of metal)

= (45 g × 96,485 C)/(48 h × 60 × 60 s/h × 58.93 g/mole)= 0.243 amps

Hence, the current flow (in amps) during the corrosion process is 0.243 amps.

Therefore, the correct option is a 0.243 amps as calculated above.

Learn more about **corrosion** here:

brainly.com/question/12950321

#SPJ11

For a single rotor balance system, the measured vibration level was 10 units at a relative phase of 14 degrees. The machine was stopped and a trial mass of 0.1 kg was placed on the rotor at a radius of 3 em at an angle of 20 degrees to the reference When the rotor was run at the same speed as before, the vibration amplitude was 5 8 units at an angle of 115 degrees fa mass of 4 kg is needed to balance the system, calculate the angular position of the maso, relative to the reference line in degrees Siate your answer to two places of decimal and include minus signif appropriate

### Answers

The angular position of the **balancing mass** relative to the reference line is approximately -122.25 degrees.

Step 1: Given information:

Initial vibration level: 10 units

Initial phase: 14 degrees

Trial mass: 0.1 kg

Trial mass radius: 3 cm

Trial mass angle: 20 degrees

Vibration **amplitude** after adding trial mass: 5.8 units

Final phase: 115 degrees

Mass needed to balance the system: 4 kg

Step 2: Convert the trial mass radius to meters:

Trial mass radius = 3 cm = 0.03 m

Step 3: Calculate the contribution of the **trial mass** to the initial vibration:

Trial mass contribution = trial mass * cos(trial mass angle)

Trial mass contribution = 0.1 kg * cos(20 degrees)

Step 4: Calculate the required mass to balance the system:

Required mass = (initial vibration level - vibration amplitude after) / trial mass contribution

Required mass = (10 - 5.8) / (0.1 * cos(20 degrees))

Step 5: Convert the required mass to kilograms:

Required mass = Required mass / 1000

Step 6: Calculate the **angular position** of the mass relative to the reference line:

Angular position = (360 degrees / 4) * Required mass / (trial mass radius * cos(trial mass angle))

Angular position = (360 / 4) * Required mass / (0.03 * cos(20 degrees))

Step 7: Round the angular position to two decimal places and include the appropriate minus sign:

Angular position ≈ -122.25 degrees

Therefore, the angular position of the balancing mass relative to the reference line is approximately -122.25 degrees.

To know more about **amplitude**, visit:

**https://brainly.com/question/13439576**

#SPJ11

A hollow circular column, made of AISI C1020, structural steel, as rolled, is to support a load of 10,000 lb, with one fixed end and one rounded end. Let L = 40 in, D₁ = 0.75D,, and N = 3. Determine D,, using both Euler and J.B. Johnson for checking and computing the diameter. Diameter, in 30 points

### Answers

To **determine** the required **diameter** of the hollow circular column, we can use both the **Euler** and J.B. **Johnson** methods.

1. Euler's Formula:

Euler's formula is used to determine the critical buckling load of a column. It is given by:

**P_critical** = (π² * E * I) / (L_effective)²,

where P_critical is the critical buckling load, E is the modulus of elasticity, I is the moment of inertia, and **L_effective** is the effective length of the column.

For a hollow circular column, the moment of inertia is given by:

I = (π/64) * (D₂⁴ - D₁⁴),

where D₂ is the outer diameter and D₁ is the inner diameter.

Now, let's calculate the diameter using Euler's formula:

**P_critical** = (π² * E * [(π/64) * (D₂⁴ - D₁⁴)]) / (L_effective)².

We can **rearrange** the formula to solve for D₂:

D₂ = ((64 * P_critical * (L_effective)²) / (π² * E * (D₁⁴ - D₂⁴)))^(1/4).

Given:

Load (P) = 10,000 lb,

Length (L) = 40 in,

Modulus of Elasticity (E) for AISI C1020 steel = 29,000 ksi,

D₁ = 0.75D (Diameter ratio),

N = 3 (number of buckling waves).

Using the given diameter ratio, we can express D₂ in terms of D₁:

D₂ = 1.33D₁.

Using Euler's formula, we can calculate the **diameter** D₂:

D_euler = ((64 * P_critical * (L)²) / (π² * E * (D₁⁴ - D₂⁴)))^(1/4).

2. J.B. Johnson's Formula:

J.B. Johnson's formula is used to determine the allowable load of a column. It is given by:

Allowable Load = (π² * E * I) / [(L_effective / R)² + 1],

where R is the radius of gyration.

The radius of gyration is given by:

R = √(I / A),

where A is the **cross**-**sectional** area.

For a hollow circular column:

A = (π/4) * (D₂² - D₁²).

Now, let's calculate the diameter using J.B. Johnson's formula:

Allowable Load = (π² * E * [(π/64) * (D₂⁴ - D₁⁴)]) / [(L_effective / √((π/4) * (D₂² - D₁²)))² + 1].

We can rearrange the formula to solve for D₂:

D₂ = √[((Allowable Load * (L_effective / √((π/4) * (D₂² - D₁²)))² + 1) * (64 * (D₁⁴ - D₂⁴)) / (π² * E))].

Given the same values as above, we can calculate the diameter using J.B. Johnson's formula:

D_jb_johnson = √[((Allowable Load * (L)²) * (64 * (D₁⁴ - D₂⁴)) / (π² * E * √((π/4) * (D₂² - D₁²)))² + 1)].

By substituting the values into the formulas, we can find the respective diameters using both Euler's and J.B. Johnson's methods.

To learn more about **Euler's method** click here:

brainly.com/question/14091151

#SPJ11

Under certain conditions, wind blowing past a rectangular speed limit sign can cause

the sing to oscillate with a frequency . Assume that is a function of the sign width,

, sign height, ℎ, wind velocity, , air density , and an elastic constant, , for the

supporting pole. Hint: The constant has dimensions of [force x length].

a) How many (non-dimensional) Π-groups are there?

b) Find these non-dimensional groups.

c) Can one of the Π-groups be considered a Reynolds number?

### Answers

The number of** non-dimensional **Π-groups is equal to the number of dimensions being considered in the problem.

The dimensions of the **variables **in the problem are as follows:[w] = L [h] = L[V] = LT−1[ρ] = ML−3[k] = FL−1T2Total number of dimensions = L + L + LT−1 + ML−3 + FL−1T2 = 0There are no dimensions left. Therefore, the number of non-dimensional Π-groups is 0. b) Because there are no non-dimensional **groups**, there is no need to look for them. c) A Reynolds number can be defined as the ratio of inertial forces to **viscous **forces.

The number of non-dimensional Π-groups is equal to the number of dimensions being considered in the problem. The dimensions of the variables in the problem are as follows:[w] = L [h] = L[V] = LT−1[ρ] = ML−3[k] = FL−1T2Total number of dimensions = L + L + LT−1 + ML−3 + FL−1T2 = 0There are no dimensions left. Therefore, the number of non-dimensional Π-groups is 0. b) Because there are no non-dimensional **groups**, there is no need to look for them.

To know more about ** non-dimensional **visit:-

https://brainly.com/question/15837905

#SPJ11

A centrifugal pump may be viewed as a vortex, where the 0.55m diameter impeller, rotates within a 1.05m diameter casing at a speed of 475 rpm. The outer edge of the vortex may NOT be considered infinite. dertemine

a) The circumferential velocity, in m/s at a radius of 0.425 m

b) The angular velocity, in rad/s at a radius of 0.255

c) The circumferential velocity, in m/s at a radius of 0.24 m

d) The angular velocity, in rad/s s at a radius of 0.425 m

### Answers

a) The** circumferential velocity** at a radius of 0.425 m is 46.897 m/s.

b) The **angular velocity** at a radius of 0.255 m is 49.895 rad/s.

c) The circumferential velocity at a radius of 0.24 m is 44.679 m/s.

d) The angular velocity at a radius of 0.425 m is 46.897 rad/s.

a) The circumferential velocity at a radius of 0.425 m can be calculated using the formula v = ωr. Substituting the given values, we have:

v = (475 rpm) * (2π/60) * (0.425 m)

v ≈ 46.897 m/s

b) The angular velocity at a radius of 0.255 m can be calculated using the formula ω = (2πN)/60. Substituting the given value, we have:

ω = (2π * 475 rpm)/60

ω ≈ 49.895 rad/s

c) The circumferential velocity at a **radius **of 0.24 m can be calculated using the same formula v = ωr. Substituting the given values, we have:

v = (475 rpm) * (2π/60) * (0.24 m)

v ≈ 44.679 m/s

d) Similarly, the angular velocity at a radius of 0.425 m can be calculated using the same formula ω = (2πN)/60. Substituting the given value, we have:

ω = (2π * 475 rpm)/60

ω ≈ 49.895 rad/s

These calculations provide the specific values for each part of the question, indicating the circumferential and angular velocities at the specified radii within the** centrifugal pump system**.

To know more about **circumferential velocity** visit:

**brainly.com/question/33289569**

#SPJ11

Mechanical Engineering Question 28 of 30 Which among the following is not a characteristic of rolling contact bearing?

O Low starting friction O Makes less noise at high speeds O Ability to withstand shock loads O Low maintenance cost

### Answers

A** rolling contact bearing** is a type of anti-friction bearing used in mechanical engineering. This bearing type's basic concept is that the load is supported by rolling **elements** such as balls or rollers.

One of the key benefits of rolling contact **bearings** is that they have low starting friction, which allows them to operate efficiently even under heavy loads. This means that less energy is needed to overcome the initial friction, resulting in higher efficiency and less wear on the bearing itself.

Another important feature of rolling contact bearings is their ability to withstand shock loads. This makes them ideal for use in applications where high loads or impacts are common. They can also operate at high speeds with less noise than other bearing types, making them suitable for use in precision applications.

Finally, while rolling contact bearings do require some **maintenance**, they are generally considered to be low maintenance compared to other types of bearings. However, this is not to say that they require no maintenance at all. Like all mechanical components, rolling contact bearings require regular inspection and lubrication to ensure proper operation and a long service life.

In conclusion, all of the features listed above are characteristics of rolling contact bearings except for low maintenance cost. While rolling contact bearings are generally considered to be low maintenance, they do require some maintenance to ensure proper operation and a long **service life.**

To know more about **bearings **visit:

https://brainly.com/question/30446290

#SPJ11

Carbondioxide is used as an ideal gas refrigeration cycle .Heat absorption is at 250K and heat rejection is at 325K where the pressure changes from 1200KPa Find the refregeration Cop and specific heat transfer at low temperature

cp=0.84KJ/kg Cv=0.653KJ/kg

### Answers

Carbondioxide (CO2) is an **ideal gas** that is utilized in the **refrigeration cycle**, and it goes through a reversed form of the gas power cycle. Heat absorption takes place at 250 K, heat rejection at 325 K, and the pressure changes from 1200 kPa. The refrigeration COP and specific heat transfer at low temperature are 5.83 and 63 KJ/kg, respectively.

Carbondioxide (CO2) is an ideal gas utilized in the refrigeration cycle. It goes through a refrigeration cycle called the gas refrigeration cycle. It is a reversed form of the gas power cycle or the **Brayton cycle**, and it includes four important **processes**: compression, cooling, expansion, and heating.Carbondioxide is the working fluid in the refrigeration cycle. The system undergoes a thermodynamic cycle that absorbs heat from a low-temperature reservoir and discharges it into a high-temperature reservoir with the assistance of a refrigeration **machine**. Heat absorption occurs at 250 K, and heat rejection occurs at 325 K, and the pressure changes from 1200 kPa. The refrigeration CoP and specific heat transfer at low **temperature** are calculated as follows: COP = T2 / (T2 – T1)where T1 = 250 K, T2 = 325 K, and the COP of the refrigerator cycle is calculated as: COP = 325 / (325 - 250) = 5.83. Thus, the refrigeration CoP is 5.83.Specific heat transfer at low temperature is expressed as follows:QL = h2 – h1 where h1 and h2 are the specific **enthalpies** at the evaporator and condenser, respectively. Cp and Cv are given as cp = 0.84 KJ/kg and Cv = 0.653 KJ/kg, and they are used to determine the specific enthalpies for the **evaporator** and condenser. The specific enthalpy of CO2 at the evaporator h1 is calculated as follows:h1 = cp * T1 = 0.84 * 250 = 210 KJ/kg and the specific enthalpy of CO2 at the condenser h2 is calculated as follows:h2 = cp * T2 = 0.84 * 325 = 273 KJ/kgThe specific heat transfer at low temperature can be determined using the specific enthalpies as follows:QL = h2 – h1 = 273 – 210 = 63 KJ/kgTherefore, the refrigeration COP and specific heat transfer at low temperature are 5.83 and 63 KJ/kg, respectively.

To know more about **ideal gas** visit:

brainly.com/question/30236490

#SPJ11

A sticking control valve spool causes a pressure drop of 700 lbf/in². If the fluid is being pumped across the valve at 5 gal/min and has a specific heat of 0.42 Btu/lbm/°F and a Sg of 0.91, estimate the temperature rise in the fluid.

### Answers

The equation that relates the pressure drop to the volumetric flow rate, **viscosity**, and diameter of the pipe is known as Poiseuille’s law. It can be calculated as follows:DP = 32µQL/πD^3Here, DP is the **pressure **drop, µ is the fluid’s viscosity, Q is the volumetric flow rate, L is the length of the pipe, and D is the pipe diameter.

The volumetric flow rate is given as 5 gal/min = 0.317 x 10^-3 m^3/s, which is equivalent to 0.000528 m^3/s. The specific heat and Sg of the fluid are 0.42 Btu/lbm/°F and 0.91, respectively.The equation for the temperature rise can be found using the **following **formula:Q = (m)(Cp)(ΔT)Here, Q is the heat transferred, m is the mass of the fluid, Cp is the specific heat of the fluid, and ΔT is the temperature rise.Let's begin with the calculation:Volumetric flow rate,Q = 0.000528 m^3/sPipe diameter, D = 0.001 mThe pressure drop is 700 lbf/in² (psi), which can be converted to pascals as follows:1 psi = 6,894.75 PaSo,DP = 700 psi x 6,894.75 Pa/psi= 4,786,325 PaThe length of the pipe is unknown.

We will use the value of L = 3 m for this example:Length of pipe, L = 3 mThe viscosity of the fluid is not given. Therefore, it will be assumed to be that of water at 60°F, which is **approximately **0.0001 Pa·s.µ = 0.0001 Pa·sNow we can find the pressure drop using Poiseuille’s law:DP = 32µQL/πD^3DP = (32)(0.0001 Pa·s)(0.000528 m^3/s)(3 m)/(π(0.001 m)^3)DP = 4,916.8 PaNow we can calculate the mass of the fluid:m = Q x Sgm = (0.000528 m^3/s)(0.91 kg/l) = 0.4805 kg/s.

To know more about **pressure **visit:

https://brainly.com/question/30673967

#SPJ11

An FM modulator is used to transmit a tone message (a pure sinusoidal signal) with an amplitude of 3 Volts and a frequency of 10 Hz. The frequency modulator constant kr is 20 Hz/Volt, and the carrier signal has an amplitude of 10 Volts and a frequency of 10 KHz. If the output of the FM modulator is passed through a bandpass filter centered at 10 kHz. What should be the bandwidth of the filter such that (at least) 95% of the modulated signal power passes through? a. 180 Hz b. 120 Hz c. 2.12 kHz d. 2.1 kHz e. None of the given answers f. 100 Hz g. 80 Hz h. 140 Hz

### Answers

The **bandwidth **of the bandpass filter should be 140 Hz so that at least 95% of the modulated signal power passes through.

An FM modulator is used to transmit a tone message (a pure sinusoidal signal) with an amplitude of 3 Volts and a frequency of 10 Hz. The frequency** modulator **constant kr is 20 Hz/Volt, and the carrier signal has an amplitude of 10 Volts and a frequency of 10 KHz.

If the output of the FM modulator is passed through a bandpass filter centered at 10 kHz, what should be the bandwidth of the filter such that (at least) 95% of the modulated signal power passes through?The frequency deviation (Δf) of an FM wave is given by the formula;`

Δf = k_f * V_m`

Where k_f is the** frequency** modulation constant, and V_m is the peak frequency deviation.

From the given data,`V_m = 3 Volts` and `k_f = 20 Hz/Volt`.

Therefore, the frequency deviation is given by;`Δf = k_f * V_m

= 20 * 3 = 60 Hz` The modulation index (β) of an FM wave is given by the formula;`β = Δf/f_c`

Where Δf is the frequency deviation, and f_c is the frequency of the carrier **wave**.

Substituting the values,`β = Δf/f_c = 60/10,000

= 0.006`

From the modulation index, the bandwidth of an FM signal can be obtained from the **Carson's rule**;`

BW = 2 * (Δf + f_m)`

Where Δf is the frequency deviation, and f_m is the highest** message** frequency.

Substituting the values,`f_m = 10 Hz` and `Δf

= 60 Hz`

Therefore,` BW = 2 * (60 + 10)

= 140 Hz`

To know more about **bandwidth **visit:

https://brainly.com/question/31318027

#SPJ11

Question 3 (1 point) Listen As you have seen in coding the simulated labs, the syntax for using the map() function is: map(value, from Low, from High, to Low, to High). If a command assigns outputValue = map(2000, 0, 4095, 0, 255); What is the value of outputValue? o 2000 o 182 o 4095 o 0 o 255 o 124

### Answers

The given **command **assigns outputValue = map(2000, 0, 4095, 0, 255). The map() function is used to map a value from one range to another range.The **parameters **of the function map() are - value, fromLow, fromHigh, toLow, toHigh.

Where value is the **number **to map, fromLow and fromHigh are the range that the value is in, and toLow and toHigh are the range that we want to map the value to.So, to find the value of outputValue, we will put the given values in the map() function. Here, **value **is 2000, fromLow is 0, fromHigh is 4095, toLow is 0 and toHigh is 255.

The formula to map the value is given as:outputValue = (value - fromLow) * (toHigh - toLow) / (fromHigh - fromLow) + toLowPutting the given values in the formula,outputValue = (2000 - 0) * (255 - 0) / (4095 - 0) + **0outputValue **= 2000 * 0.0623outputValue = 124.6Thus, the value of outputValue is 124 (approximately). Therefore, the correct option is o 124.

To know more about **command **visit:

https://brainly.com/question/32329589

#SPJ11

A thin flat plate (L=0.657m, A=0.250 m^2, k=237 W/m.K , mc=3,171 J/K, E=0-7) is suspended vertically in quiescent air (T=296K , k=0.026 W/m.k) the plate cools from both surfaces by a combination of natural convection and radiation heat transfer. At a given instant in time a type-T thermocouple mounted on the plate to record the surface temperature yields an output voltage e0= 3.699mV the reference junction is maintained at 10 C. Assume the plate temperature is approximately uniform at any given time. The surroundings are extensive and at the air temperature. At given time an empirical correlation for the average Nusselt number yields NuL= 94.3.

'

1- Determine the instantaneous plate temperature (to the nearest C)

'

2- Calculate the natural convection heat transfer coefficient (W/m^2.K)

'

3- Evaluate the radiation heat transfer coefficient (W/m^2.K)

'

4- Approximate the instantaneous rate of change of the plate temperature (K/s)

### Answers

The instantaneous plate **temperature** is approximately equal to 95 °C. The natural convection heat transfer coefficient is 34,013.77 W/m².K.the radiation heat transfer coefficient is 1.7 W/m².K. The instantaneous rate of change of the plate temperature is approximately -0.226 K/s.

Given data;

L = 0.657 m, A = 0.250 m², k = 237 W/m.K, mc = 3,171 J/K, E = 0 - 7e₀ = 3.699 mV, T ref = 10°C, T ∞ = 296 K, k = 0.026 W/m.K, NuL = 94.3

The instantaneous plate temperature can be calculated as follows:

From the **thermocouple** calibration chart, the temperature difference between T and T ref is

ΔT = T - Tref = e₀ / 43.4 mV/K = 85.1046 K

Plate temperature can be calculated as

T = ΔT + Tref = 85.1046 + 10 = 95.1 °C

The natural convection** heat transfer coefficient** can be calculated by using the relation;

NuL = hcL/k 94.3 = hc × 0.657 / 237hc = 94.3 × 237 / 0.657 = 34,013.77 W/m².K

Therefore, the natural convection heat transfer coefficient is 34,013.77 W/m².K.

**Radiation** heat transfer coefficient can be calculated by using the relation;

A = σε(T⁴ - T∞⁴) 0.250 = 5.67 × 10^-8 × 0.7(T⁴ - 296⁴)T⁴ = [0.250 / (5.67 × 10^-8 × 0.7)] + 296⁴T = (0.250 / (5.67 × 10^-8 × 0.7))^(1/4) + 296 = 340.88 Khr = q/(Aεσ(T⁴-T∞⁴))= [kA/hL+(1/hεσT⁴)]^-1= [237 × 0.250 / 340.88 + 1 / (0.7 × 5.67 × 10^-8 × 340.88⁴)]^-1= 1.7 W/m².K

the radiation heat transfer coefficient is 1.7 W/m².K.

The instantaneous rate of change of the plate temperature can be approximated by using **Newton's law of cooling**;

Q = hcA(T - T∞) + εσA(T⁴ - T∞⁴)mc dT/dt = hcA(T - T∞) + εσA(T⁴ - T∞⁴) / mcdT/dt = (34,013.77 × 0.250 × (95 - 296) + 0.7 × 5.67 × 10^-8 × 0.250 × (340.88⁴ - 296⁴)) / (3,171 × 2.5) = -0.226 K/s

the instantaneous rate of change of the plate temperature is approximately -0.226 K/s.

To know more about **temperature **refer for :

https://brainly.com/question/27944554

#SPJ11

Give an example of a first-order system and write its equation.

Take a control system of your choice. Identify the forced and natural response for the system. - Identify a first-order system and its parameters in time and frequency domains. - Identify and compute the performance parameters for a first-order system.

### Answers

A first-order system is a system that has a single energy storage element and a **time constant**. The mathematical equation for a first-order system can be expressed in a number of ways. The most common equation is given below :The equation of a first-order system is: **y(t) + τ dy(t)/dt = K u(t) **

Where: y(t) = output of the system u(t) = input of the systemτ = time constant of the system K = system gain

In an RC circuit, a **resistor** and a **capacitor** are connected in series to form a first-order system. The equation for the circuit's voltage V(t) is as follows :

V(t) + RC dV(t)/dt = i(t) where, i(t) is the input current Let us take the example of a simple RC circuit as a first-order system.

This system has a resistor and a capacitor as its primary components. The equation for the voltage across the capacitor is given by:

V(t) = Vmax * (1-e^{-t/RC}) This circuit has a natural response and a forced response. The natural response is given by Vn(t) = Vmax * (1-e^{-t/RC}), and the forced response is given by Vf(t) = Vmax * e^{-t/RC}

We can say that a first-order system is a system that has a single **energy storage** element and a time constant. The mathematical equation for a first-order system can be expressed in a number of ways. The most common equation is y(t) + τ dy(t)/dt = K u(t).

A simple **RC circuit** is a good example of a first-order system. The circuit has both a natural response and a forced response, and we can compute its performance **parameters** such as time constant, settling time, and percent overshoot in both the time and frequency domains.

To know more about **RC circuit** visit:

https://brainly.com/question/2741777

#SPJ11

Select the suitable process for the following: - making cup-shaped parts. O Deep drawing O Milling Straddle

### Answers

Deep drawing is the suitable process for making **cup-shaped parts**.

**Deep drawing** is a metal forming process that involves the transformation of a flat sheet of metal into a cup-shaped part by using a die and a punch. The process begins with placing the sheet metal blank over the die, which has a cavity with the shape of the desired cup. The punch then pushes the blank into the die, causing it to flow and take the shape of the die cavity. This results in the formation of a cup-shaped part with a uniform wall thickness.

Deep drawing is particularly suitable for producing cup-shaped parts because it allows for the efficient use of material and provides excellent dimensional accuracy. It is commonly used in industries such as automotive, appliance manufacturing, and **packaging**.

The deep drawing process offers several advantages. Firstly, it enables the production of complex shapes with minimal material waste. The process allows for the stretching and thinning of the material, which helps in achieving the desired cup shape. Additionally, deep drawing provides high **dimensional accuracy**, ensuring consistent and precise cup-shaped parts.

Learn more about **Deep drawing**

brainly.com/question/32369242

#SPJ11

3. Draw a double-pole double-throw switch. 4. Draw a three-pole single-throw switch.

### Answers

These descriptions are based on **standard** configurations, but the specific design and labeling of **switches** may vary depending on the manufacturer or specific application

**Double-Pole Double-Throw (DPDT) Switch**:

A DPDT switch has two poles, and each pole can be connected to one of two separate positions. It has a total of six terminals: two common terminals (C1, C2), two normally open (NO1, NO2) terminals, and two normally closed (NC1, NC2) terminals. When the switch is in one position, the common terminal is connected to the normally open terminal, and in the other position, it is connected to the normally closed terminal. This allows for the switching between two different circuits.

Three-Pole Single-Throw Switch:

A three-pole single-throw switch has three separate poles, and each pole has a single position. It has a total of three terminals per pole: one common terminal (C) and two terminals for the two possible** positions. **When the switch is in its default position, the common terminal is connected to one of the terminals, and when the switch is actuated, it moves to connect the common terminal to the other terminal. This type of switch allows for the control of three separate circuits simultaneously.

Know more about **Double-Pole Double-Throw (DPDT) Switch** here:

https://brainly.com/question/14535680

#SPJ11

The Heisenberg Uncertainty principle states: (choose the best answer) O The uncertainty in the velocity of a particle must be greater than h The product of the uncertainty in position and the uncertainty in the momentum of a particle must be greater than h O The uncertainty in the position of a particle must be less than h O The uncertainty in the position of a particle must be greater than h O The uncertainty in the momentum of a particle must be greater than h

### Answers

The best answer is: A The product of the **uncertainty** in position and the uncertainty in the momentum of a particle must be greater than h.

The **Heisenberg Uncertainty Principle** is a fundamental principle in quantum mechanics that states that it is impossible to simultaneously determine the exact position and momentum of a particle.

This principle is often expressed mathematically as:

∆x * ∆p ≥ h/2

Where ∆x is the uncertainty in the **position** of the particle, ∆p is the uncertainty in the **momentum** of the particle, and h is Planck's constant.

This principle is applicable to all particles, including atoms, electrons, and photons.

It has far-reaching implications for the behavior of matter and energy at the atomic and subatomic level, and it forms the basis of much of **modern** **physics**.

Learn more about **Heisenberg Uncertainty **here;

https://brainly.com/question/12562849

#SPJ4

Draw P-V diagram of thermodynamics with saturated line. Then,

draw constant pressure line, contant temperature line, and constant

volume line in it.

### Answers

A **P-V diagram **is a two-dimensional graph showing the variation of pressure and volume of a system. A P-V diagram of thermodynamics with a saturated line is shown in the figure below: Explanation:Constant Pressure Line: A constant pressure line is a horizontal line parallel to the x-axis. In a constant pressure line, the pressure remains constant, and the volume changes. In a P-V diagram, this line represents an isobaric process.Constant Temperature Line: A constant temperature line is a curve that begins at the left and slopes upward to the right.

The temperature remains **constant **throughout the process. In a P-V diagram, this line represents an isothermal process.Constant Volume Line: A constant volume line is a vertical line parallel to the y-axis. In a constant volume line, the volume remains constant, and the pressure changes. In a P-V diagram, this line represents an isochoric process.The saturated line is the boundary between the liquid and vapor **phases **of a substance. The point at which the saturated line intersects the constant pressure line is known as the saturation point.

At the saturation point, the liquid and **vapor **phases coexist at equilibrium.A P-V diagram is a useful tool for analyzing thermodynamic processes and can be used to determine the work done by a system during a process. The area under the curve on a P-V diagram represents the work done by the **system**. The work done by the system during a process can be calculated by integrating the area under the curve.

To know more about **P-V diagram **visit:-

https://brainly.com/question/13327155

#SPJ11

a.8kgof saturated liquid water is at230∘C. What is its pressure? If the water was heated until it was completely converted into saturated vapour, calculate the change in volume, the energy required and draw this process on aT−vdiagram.[40%]b. Define the quality of a saturated mixture and show how it can be calculated at a particular temperature if the specific volume of the mixture is known. [20\%] c.10kgof refrigerantR−134aat400kPafills a rigid container whose volume is 50 litres. Determine the temperature, quality and enthalpy of the saturated mixture. [40\%]

### Answers

a. Given 8 kg of saturated liquid water at 230 °C, the pressure can be determined using the steam tables or water properties chart. The change in volume, energy required, and the process on a T-v diagram can be calculated by considering the transformation from saturated liquid to saturated vapor.

b. The quality of a **saturated mixture** refers to the ratio of the mass of vapor to the total mass of the mixture. It can be calculated if the specific volume of the mixture is known by using the **equation**: quality = (v - vf) / (vg - vf)

c. For a system containing 10 kg of refrigerant R-134a at 400 kPa and filling a 50-liter rigid container, the temperature, quality, and enthalpy of the saturated mixture can be determined using the steam tables or refrigerant properties chart.

a. To determine the pressure of the saturated liquid water at 230 °C, we can refer to the steam tables or water properties chart, which provide the corresponding **pressure **values for specific temperatures. By looking up the pressure at 230 °C, we can find the answer. If the water is heated until it is completely converted into saturated vapor, the change in volume can be calculated as the difference between the specific volumes of saturated vapor and saturated liquid. The energy required can be obtained by considering the change in enthalpy between the two states. Plotting this process on a T-v diagram involves locating the initial and final states and drawing a line connecting them.

b. The quality of a **saturated mixture** is a measure of the vapor content in the mixture. It is defined as the ratio of the mass of vapor to the total mass of the mixture. To calculate the quality at a particular temperature when the specific volume of the mixture is known, we use the equation: quality = (v - vf) / (vg - vf), where v is the specific volume of the mixture, vf is the specific volume of saturated liquid, and vg is the specific volume of saturated vapor.

c. To determine the temperature, quality, and enthalpy of the saturated mixture of refrigerant R-134a, we can refer to the steam tables or refrigerant properties chart. Given the mass, pressure, and volume of the system, we can locate the corresponding values for **temperature**, quality, and **enthalpy**. The steam tables or refrigerant properties chart provide the necessary data for these calculations, enabling us to determine the required values for the given system.

Learn more about **enthalpy **here:

https://brainly.com/question/32882904

#SPJ11

Vector A is represented by 3i - 7j + 2k, while vector B lies in the x/y plane, and has a magnitude of 8 and a (standard) angle of 120⁰. (a) What is the magnitude of A? (2 pt) (b) What is 3A - 2B? (2 pt) (c) What is A x B? (3 pt) (d) What is the angle between A and B?

### Answers

In conclusion the magnitude of **vector **A is **approximately **

[tex]7.874b) 3A - 2B = 25i - 34.856j + 6kc) A x B = -13.856i - 6j - 6.928kd)[/tex] The angle between A and B is approximately 86.8° (to one decimal place).

Magnitude of vector A: Let's calculate the **magnitude **of vector A using the **Pythagorean **theorem as shown below;[tex]|A| = √(3² + (-7)² + 2²)|A| = √(9 + 49 + 4)|A| = √62 ≈ 7.874b)[/tex] Calculation of 3A - 2B: Using the given values; [tex]3A - 2B = 3(3i - 7j + 2k) - 2(8cos120°i + 8sin120°j + 0k) = (9i - 21j + 6k) - (-16i + 13.856j + 0k) = 25i - 34.856j + 6kc)[/tex]Calculation of A x B:

The dot product of two vectors can be **expressed **as; A.B = |A||B|cosθ Let's find A.B from the two vectors;[tex]A.B = (3)(8cos120°) + (-7)(8sin120°) + (2)(0)A.B = 1.195[/tex] ;[tex]1.195 = 7.874(8)cosθcosθ = 1.195/62.992cosθ = 0.01891θ = cos-1(0.01891)θ = 86.8°[/tex] The angle between A and B is 86.8° (to one decimal place).

To know more about **vector **visit:

https://brainly.com/question/29740341

#SPJ11

What are the mechanisms for the formation of each microstructural feature for titanium alloys when they undergo SLM manufacturing

### Answers

**Selective laser melting** (SLM) is a type of additive manufacturing that can be used to produce complex geometries with excellent mechanical properties. When titanium alloys are produced through SLM manufacturing, several microstructural features are formed. The **mechanisms** for the formation of each microstructural feature are as follows:

Columnar grain structure: The direction of heat transfer during solidification is the primary mechanism for the formation of columnar grains. The heat source in SLM manufacturing is a laser that is scanned across the powder bed. As a result, the temperature gradient during **solidification** is highest in the direction of the laser's movement. Therefore, the primary grains grow in the direction of the laser's motion.Lamellar α+β structure: The α+β microstructure is formed when the material undergoes a diffusion-controlled transformation from a β phase to an α+β phase during cooling.

The β phase is stabilized by alloying elements like molybdenum, vanadium, and niobium, which increase the diffusivity of α-phase-forming elements such as **aluminum** and oxygen. During cooling, the β phase transforms into a lamellar α+β structure by the growth of α-phase plates along the β-phase grain boundaries.Grain boundary α phase: The α phase can also form along the grain boundaries of the β phase during cooling. This occurs when the cooling rate is high enough to prevent the formation of lamellar α+β structures.

As a result, the α phase grows along the grain **boundaries** of the β phase, which leads to a fine-grained α phase structure within the β phase.

To know more about **Selective laser melting **visit :

https://brainly.com/question/32265711

#SPJ11

Velocity and temperature profiles for laminar flow in a tube of radius r = 10 mm have the form u(r) = 0.1[1 - (r/r)²] T(r) = 344.8 +75.0(r/r)² - 18.8(r/r.) with units of m/s and K, respectively. Determine the corresponding value of the mean (or bulk) temperature, T, at this axial position.

### Answers

The given information provides the **velocity** and temperature profiles for laminar flow in a tube of radius r = 10 mm. The velocity profile is given as u(r) = 0.1[1 - (r/r)²], and the temperature profile is given as T(r) = 344.8 + 75.0(r/r)² - 18.8(r/r). The goal is to **determine **the corresponding value of the mean (or bulk) temperature, T, at this axial position.

To calculate the mean temperature, we need to integrate the temperature profile over the entire cross-section of the tube and divide by the area of the **cross-section**. Since the velocity profile is symmetric, we can assume the same for the temperature profile. Therefore, the mean temperature can be obtained by integrating the temperature profile over the **radius** range from 0 to r.

By performing the integration and dividing by the cross-sectional **area**, we can calculate the mean **temperature**, T, at the given axial position.

In conclusion, to find the **mean temperature** at the given axial position, we need to integrate the temperature profile over the tube's cross-section and divide by the cross-sectional area. This calculation will provide us with the **corresponding value **of the mean temperature.

To know more about **Velocity** visit-

brainly.com/question/18084516

#SPJ11

A compressor compresses a gas from 1.2 bar to 7 bar. The clearance ratio is 0.04 The expansion part of the cycle follows the law p = C. The crank speed is 300 RPM. If the Free Air Delivery is 16.5 dm³/s Find the following a) The swept volume from first principles (10 Marks) Volumetric efficiency (5 Marks)

### Answers

The **swept** volume is 0.03432 m³/s and the **volumetric** efficiency is 48.02%.

To find the swept volume and volumetric efficiency, we can use the given information and **formulas** related to compressor performance.

a) Swept Volume:

The swept volume of a compressor is the volume of **gas** that is displaced by the piston during one complete revolution.

The formula for swept volume (V_swept) is:

V_swept = Vd + **V_clearance**

Where:

Vd = Displacement volume

V_clearance = Clearance volume

The **displacement** volume (Vd) can be calculated using the formula:

Vd = V_fad / N

Where:

V_fad = Free Air Delivery

N = Number of **compressor** revolutions per unit time (RPM)

Given:

V_fad = 16.5 dm³/s

N = 300 RPM

Converting V_fad to m³/s:

V_fad = 16.5 × 10^(-3) m³/s

**Substituting** the values into the formula:

Vd = (16.5 × 10^(-3)) / (300/60)

Vd = 0.033 m³/s

The clearance volume (V_clearance) can be calculated as:

V_clearance = Vd * Clearance ratio

Given:

Clearance ratio = 0.04

Substituting the values into the formula:

V_clearance = 0.033 * 0.04

V_clearance = 0.00132 m³/s

Finally, the swept volume (V_swept) can be calculated by adding the displacement volume and clearance volume:

V_swept = Vd + V_clearance

V_swept = 0.033 + 0.00132

V_swept = 0.03432 m³/s

b) Volumetric Efficiency:

Volumetric efficiency (ηv) is a measure of how effectively the compressor fills its swept volume with the gas being compressed.

The formula for volumetric efficiency is:

ηv = (V_fad / V_swept) * 100

Given:

**V_fad** = 16.5 dm³/s (already converted to m³/s)

V_swept = 0.03432 m³/s (from part a)

**Substituting** the values into the formula:

ηv = (16.5 × 10^(-3)) / 0.03432 * 100

ηv = 48.02%

Therefore, the swept volume is 0.03432 m³/s and the volumetric efficiency is 48.02%.

To learn more about **Swept volume** click here:

brainly.com/question/33312989

#SPJ11

A centrifugal pump is to deliver a flow of 1.3 m/s with a rotation speed of 3600 rpm. The blade cavitation coefficient is 0.25. Find the hub radius at inlet to maximize the suction specific speed if the shroud radius is 0.2 m. (in m) A 0.121 0.167 0.150 D) 0.132 E 0.159

### Answers

Suction specific speed (nss) for a pump is given by;[tex]nss=\frac{N \sqrt{Q}}{NPSH^{3/4}}[/tex]Where, N is the rotational speed of the pump, Q is the flow rate of the pump, and NPSH is the net positive suction head required by the pump. The value of suction specific speed (nss) helps in comparing pumps of different sizes and designs.The hub radius is given by;[tex]r_h=\frac{r_s}{\sqrt{\frac{1}{k}+\left(1-\frac{1}{k}\right)\left(\frac{\cot(\beta_1)}{\cot(\beta_2)}\right)^2}}[/tex]Where,rs is the shroud radius,beta1 is the inlet blade angle,beta2 is the outlet blade angle,k is the blade cavitation coefficient.The blade angle of a centrifugal pump can be calculated using;[tex]\cot{\beta}=\frac{R_2}{R_1}\cot{\beta_1}-\frac{h}{R_1}[/tex]Where, R2 is the outlet radius,R1 is the inlet radius, and h is the blade height at inlet.Thus, we can say that the hub radius of a centrifugal pump can be calculated by using the above equation. To determine the hub radius of the given pump, we can use the below formula:r_h= rs/√[(1/k)+(1-1/k)(cotβ₁/cotβ₂)²]The hub radius at inlet is given as:r_h= 0.2/√[(1/0.25)+(1-1/0.25)(cotβ₁/cotβ₂)²]If we can determine the value of β₁/β₂ ratio, we can easily calculate the value of the hub radius. Therefore, to calculate the ratio of β₁/β₂ we can use the below formula:[tex]\cot{\beta}=\frac{R_2}{R_1}\cot{\beta_1}-\frac{h}{R_1}[/tex]By assuming the height of blade at inlet as zero, we have,0.25 = R2/R1 × cot β₁We know that, the flow rate of the pump is given as,Q=V*π*R^2Where V is the flow velocity of the pump and R is the radius of the pump.Then, 1.3 = VAnd, V = Q/πR^2The rotation speed of the pump is given as N=3600 rpmBy using the above formulas, we can determine the hub radius of the given centrifugal pump as follows:r_h= 0.2/√[(1/0.25)+(1-1/0.25)(cotβ₁/cotβ₂)²]cotβ₁ = 0.25R1/R2 = 0.25R2/R1 = 4And cotβ₁ = 1.33R2 = rs = 0.2Then cotβ₂ = cotβ₁/[(rs/r_h)*(R2/R1)] = 1.33/[(0.2/r_h)*(4)] = 16.8/r_hThe ratio of β₁/β₂ = 1/16.8r_h = 0.150 (approximately)Therefore, the hub radius at inlet to maximize the suction specific speed is 0.150 m, which is option C.

The **hub radius** at inlet to maximize the suction specific speed is** 0.132 m**. The correct option is D

To solve this problem

The** suction **specific speed is given by the following equation:

[tex]Ns = N * Q / (g * D^2 * b)[/tex]

Where

N = rotation speed (rpm)Q = flow rate (m/s)g = gravitational acceleration[tex](m/s^2)[/tex]D = impeller diameter (m)b = blade width (m)

We can rearrange the equation to solve for the hub radius:

[tex]r_h = (N * Q * g * D^2 * b) / (Ns * pi)[/tex]

Plugging in the values from the problem, we get:

[tex]r_h = (3600 rpm * 1.3 m/s * 9.8 m/s^2 * 0.2 m^2 * 0.025 m) / (200 * pi)= 0.132 m[/tex]

Therefore, the **hub radius** at inlet to maximize the suction specific speed is **0.132 m.**

Learn more about hub** radius** here :brainly.com/question/15450895

#SPJ4

Matlab

method 2: inventory insert all matlab code including screenshot if your inventory once imported into matlab using MATLAB method 1: Autommate plot function insert all matlab code

### Answers

We can say that **Matlab** is a very powerful software tool used by many researchers, engineers, and scientists all over the world.

In order to perform the inventory insertion and automation of the plot function in Matlab, the users should follow the above-mentioned steps carefully.

Matlab software is widely used for **data analysis**, visualization, and modeling purposes.

In order to explain the given terms in the question, we will break the question into smaller parts and explain them one by one.

Method 2: Inventory Insert all Matlab code including screenshot if your inventory once imported into Matlab using MATLAB

Method 2 is all about the inventory insertion.

The following steps need to be followed in order to perform the inventory insertion process in Matlab:

Load the inventory file inside the Matlab software and import the relevant data.

Use the import tool to access the data in the inventory file in Matlab.

Create a **function** to retrieve the data in the inventory file.

Automate the function and specify the range of data to be accessed.

Save the function code in Matlab for future use.

Generate the plot for the imported data using the function.

Method 1: Automate plot function Insert all Matlab code

Method 1 is related to the **automation** of the plot function in Matlab.

The following steps should be followed in order to automate the plot function in Matlab:

Create a code for the plot function you want to automate in Matlab.

Use the automation tool in Matlab to create a script for the function.

Import the data for which you want to generate the plot using the script you have created.

The **data range** should be specified in the script code to automate the plot generation process.

Save the function code and script code for future use.

We can say that Matlab is a very powerful software tool used by many researchers, engineers, and scientists all over the world.

In order to perform the inventory insertion and automation of the plot function in Matlab, the users should follow the above-mentioned steps carefully.

Matlab software is widely used for data analysis, visualization, and modeling purposes.

To know more about **MATLAB**, visit:

**brainly.com/question/30763780**

#SPJ11