Q3. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -5 C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70 C. The refrigerant is cooled in the condenser to 44 C and 1.15 MPa, and it is throttled to 0.21 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the rate of heat removal from the refrigerated space and the power input to the compressor, (b) the isentropic efficiency of the compressor, and (c) the COP of the refrigerator. Solve this question using both tables and P-h chart.

Q3. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa and -5 C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70 C. The refrigerant is cooled in the condenser to 44 C and 1.15 MPa, and it is throttled to 0.21 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the rate of heat removal from the refrigerated space and the power input to the compressor, (b) the isentropic efficiency of the compressor, and (c) the COP of the refrigerator. Solve this question using both tables and P-h chart.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: A turbine designed for an output of 100 MW receives superheated steam with the following conditions;…

Q: Q3:In a gas turbine unit, the gases flow through the turbine and the power developed by the turbine…

Q: The Figure shows a steam engine based on insulsted turbine. The boiler has a volume 100 liters and…

Q: Q5: A-Steam enters a turbine with a velocity of 50m/s and specific enthalpy 2690 kJ/kg . the steam…

A: "Since you have asked multiple question , we will solve the first question for you if you want any…

Q: A piston-cylinder device initially contains 2 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…

A: Given data: m=2 kgP1=100 kPaT1=20°CP2=120 kPaT2=80°CTo=25°CPo=100 kPa Need to determine the work…

Q: A pressure relief valve is installed in a rigid 25-L steam cooker to release vapor and maintain…

A: To determine the smallest entropy change of the thermal energy reservoir.

Q: A heat exchanger operates steadily as shown in Figure Q2. Air enters the heat exchanger at 100 kPa,…

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

Q: Refrigerator 1 simulates an ideal refrigerator and therefore operates on a Carnot cycle using R-134a…

Q: A turbine designed for an output of 100 MW receives superheated steam with the following conditions;…

Q: Air with a pressure of 0.1 MPa and a temperature of 25oC with a flow rate of 5.29 kg/minute enters a…

Q: a) The rate of heat removal from the refrigerated space and the power input to the compressor, b)…

A: (a) Write the enthalpy and entropy of the refrigerant as superheated vapor from the superheated…

Q: pressed liquid water enter poiler at 500°C, 3000 kPa

A: Write the value of enthalpy from the steam table as follows-

Q: Steam enters the nozzle operating a steady state pressure of 2.5 MPa and a temperature of 300 °C (…

Q: In turbochargers a turbine is directly connected to a compressor. The power harvested by the turbine…

Q: A refrigeration system operated on an ideal vapor-compression using R-12 with a vaporizing…

A: Given:Refrigeration=R12Vaporizing temperature, Te=-10oCCondensing temperature, Tc=30oCMotor power of…

Q: Refrigerant flows through a water-cooled condenser at a rate of 25 kg/ min. The specific enthalpy of…

Q: Steam is supplied to a fully loaded 100-hp turbine at 200 psia with u1 = 1163.3 Btu/lb, v1 = %3D…

A: Given data as per the question power of turbine =100 HP Heat loss from the steam in turbine =10…

Q: Air goes through a Brayton cycle gas turbine, entering the compressor at 11 °C and 108 kPa. When it…

Q: Air at 14.7 psia, 70°F, enters a compressor with negligible velocity and is discharged at 50 psia,…

Q: e evaporation temperature in the evaporator is -22 °C and the condens: nperature in the condenser is…

Q: Q5: A-Steam enters a turbine with a velocity of 35 m/s and specific enthalpy 2990 kJ/kg . the steam…

Q: Steam at a rate of 200 kg/min enters a turbine at 350'C and 40 bar through a 7.5-em internal…

Q: Water vapor enters a turbine at 6 MPa pressure and 800 ° C temperature and leaves at 20 kPa…

A: Write the given data with suitable variables. P1=6 MPaT1=800 °CP2=20 kPaη=95 %Qloss=49.7 kJ/kgT∞=20…

Q: I need answer as soon as possible

A: Given-Information:- p1 = 30 barT1 = 300°Cu = 2750 kJ/kgh = 2993 kJ/kgp2 = 15 kPau = 225 kJ/kgh = 226…

Q: A heat exchanger is used to cool the water that enters at 100 kPa, 400 at rate of 5 kg/s. The water…

A: Solution: a) Since water exits as saturated vapour from the heat exchanger saturation temperature at…

Q: An ammonia compressor operates on an evaporator pressure of 291.57 kPa and a condenser pressure of…

A: Given data, Evaporator pressure, Pevp = 291.57 kPa Condenser pressure, Pcond = 1557 kPa Refrigerant…

Q: Q2: A simple R134a vapor compression system operates between 40°C condensing temperature and-10°C…

Q: Steam enters a well-insulated turbine at 500 bar and 600oC with a velocity of 100 m/s. The stream…

Q: A 12" x 14" horizontal single-acting reciprocating air compressor is driven by a 50 kW motor that…

A: Given: The bore, d = 12 in The stroke, L = 14 in The power, P = 50 kW The speed, N = 520 rpm The…

Q: The large insulated flash chamber of a vacuum refrigeration plant is kept at low temperature by a…

A: To find: The quantity in cubic meter per minute of chilled water system can provide. Given: The…

Q: 3. A 1.5 kW pump delivers 1.2 kg/s water to a building. The water comes in at 100 kPa, and 15°C. The…

A: Given data

Q: Refrigerant 134a enters an air-cooled condenser at 12 bars and 60°C, and leaves as a saturated…

Q: Q3: - In a gas turbine installation, the gases enter the turbine at the rate of 5 kg/s with a…

Q: PART B only Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature…

Q: 0.4 A condenser works under a vacuum of 700mmHg while air leaks into It at a 4.25kg/hr. The air pump…

Q: 4. Steam enters the condenser of a steam power plant at 20000 kPa and a quality of 95 percent with a…

Q: 5.1.7- A vapor at 1.7 MPa, 250 °C and with a velocity of 110 m/s enters a group of twelve (12)…

Q: A piston-cylinder device initially contains 2 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…

Q: 1. Steam is supplied to a fully loaded 100 hp turbine at 200 psia with u, = 1160 BTU/b, v, = 2.6…

A: Given data Power developed in the turbine = P = 100 hp = 74.57 kWInlet Pressure =P1 = 200 psia =…

Q: Your second customer wants to determine the dissipated electrical power by a personal computer,…

A: The pressure is P1=101.325 kPa. The inlet temperature of air T1=21 °C. The exit temperature of air…

Q: 4. Steam enters the condenser of a steam power plant at 20000 kPa and a quality of 95 percent with a…

A: To find: The mass flow rate of the cooling water required. Given: The pressure of steam at the inlet…

Q: A certain refrigerator has a COP of 5.00. When the refrigerator is running, its power input is 500…

A: For making 44 Kg ice in a day from 20 °C water, heat needs to be extracted. Desired effect, QDE…

Question

Q3. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.20 MPa
and -5 C at a rate of 0.07 kg/s, and it leaves at 1.2 MPa and 70 C. The refrigerant is cooled in the
condenser to 44 C and 1.15 MPa, and it is throttled to 0.21 MPa. Disregarding any heat transfer
and pressure drops in the connecting lines between the components, show the cycle on a T-s
diagram with respect to saturation lines, and determine (a) the rate of heat removal from the
refrigerated space and the power input to the compressor, (b) the isentropic efficiency of the
compressor, and (c) the COP of the refrigerator. Solve this question using both tables and P-h chart.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Trending now

This is a popular solution!

Step by step

Solved in 7 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Hi, can you only help with part a of the following?
Separate streams of air and water flow through the compressor and heat exchanger arrangement shown in the figure below, where m˙1= 0.6 kg/s and T6= 50°C. Steady-state operating data are provided on the figure. Heat transfer with the surroundings can be neglected, as can all kinetic and potential energy effects. The air is modeled as an ideal gas. Determine:(a) the total power for both compressors, in kW.(b) the mass flow rate of the water, in kg/s.
2
A vacuum refrigeration system consists of a large insulated flash chamber kept at low pressure by steam ejector which pumps vapor to a condenser. Condensate is removed by condensate to an air vent. Warm return water enters the flash chamber at 13oC, chilled water comes out of the flash chamber at 5oC Vapor leaving the flash chamber has a quality of 0.97 and the temperature in the condenser is 32oC. For 350 kw of refrigeration How much vapor must the steam ejector remove from the flash chamber?
Nitrogen at a pressure of 200 kPa and a temperature of 25°C, flow at a velocity of 20 m/s through a pipe with a diameter of 35 mm Working substance:______system:______ Sketch :