## Required Information**NOTE:** *This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.*Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 50°C at a rate of 0.024 kg/s and leaves at 750 kPa subcooled by 3°C. The refrigerant enters the compressor at 200 kPa superheated by 4°C.(Take the required values from saturated refrigerant-134a tables.)### Diagram ExplanationThe diagram illustrates the cycle of a refrigerant-134a system in a residential heat pump. The cycle consists of four primary components:1. **Compressor:** The refrigerant enters the compressor at state (1) with 200 kPa and is superheated by 4°C. The work input (\(W_{in}\)) is required here to elevate the pressure to 800 kPa at state (2).2. **Condenser:** At state (2), the refrigerant is at 800 kPa and 50°C. In the condenser, heat is rejected (\(\dot{Q}_H\)) as the refrigerant transitions to state (3), where it is at 750 kPa and subcooled by 3°C.3. **Expansion Valve:** The refrigerant undergoes an isenthalpic process, expanding as it moves to state (4) returning to a lower pressure.4. **Evaporator:** At state (4), heat is absorbed from the environment (\(\dot{Q}_L\)), which vaporizes the refrigerant back to state (1).### TaskDetermine the isentropic efficiency of the compressor. (You must provide an answer before moving on to the next part.)The isentropic efficiency of the compressor is ______ %.

Assumptions:Steady flow process.Negligible changes in kinetic and potential energies.The compressor…

Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 50°C at a rate of 0.024 kg/s and leaves at 750 kPa subcooled by 3°C. The refrigerant enters the compressor at 200 kPa superheated by 4°C. (Take the required values from saturated refrigerant-134a tables.) QH 750 kPa Condenser Expansion valve Evaporator QL 800 kPa 50°C in Compressor Determine the isentropic efficiency of the compressor. (You must provide an answer before moving on to the next part.) The isentropic efficiency of the compressor is [ %.

Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Refrigerant-134a enters the condenser of a residential heat pump at 800 kPa and 50°C at a rate of 0.024 kg/s and leaves at 750 kPa subcooled by 3°C. The refrigerant enters the compressor at 200 kPa superheated by 4°C. (Take the required values from saturated refrigerant-134a tables.) QH 750 kPa Condenser Expansion valve Evaporator QL 800 kPa 50°C in Compressor Determine the isentropic efficiency of the compressor. (You must provide an answer before moving on to the next part.) The isentropic efficiency of the compressor is [ %.

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

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NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A commercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -30°C by rejecting its waste heat to cooling water that enters the condenser at 18°C at a rate of 0.28 kg/s and leaves at 26°C. The refrigerant enters the condenser at 1.2 MPa and 65°C and leaves at 42°C. The inlet state of the compressor is 60 kPa and -34°C and the compressor is estimated to gain a net heat of 420 W from the surroundings. The heat exchanger loses no heat to the environment. 26°C 42°C Condenser Expansion valve Evaporator OL Water 18°C 1.2 MPa 65°C Oin W in Compressor 60 kPa -34°C Determine the COP of the refrigerator. (You must provide an answer before moving on to the next part.) The COP of the refrigerator is 1.824 >
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