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Thermodynamics

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User Generated
Subject
Mechanical Engineering
School
The University of Texas at Dallas
Type
Homework
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Table of Contents
Introduction ................................................................................................................................................... 2
Thermodynamics Considerations .................................................................................................................. 2
Thermodynamics Analysis ............................................................................................................................ 4
Proposed improvements ................................................................................................................................ 6
Economics effect ........................................................................................................................................... 7
Conclusion .................................................................................................................................................... 8
Table of Figures
Figure 1: Vapor-Compression Refrigeration cycle ....................................................................................... 2
Figure 2: T-S diagram of the refrigeration cycle .......................................................................................... 3
Figure 3: Actual vapor-compression refrigeration cycle .............................................................................. 4

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Introduction
The term refrigerator describes the process in which the system temperature maintained below the
atmospheric temperature. The topic of refrigeration is vast but here is limited to domestic refrigerator i.e
Fridges or AC units. Nowadays, Air conditioners and refrigerators work on vapor compression refrigeration
cycles. In his report, I will be talking interchangeably about Air Conditioners and refrigerators since they
function in a similar fashion.
Refrigeration systems operates on a series of consecutive thermodynamic process that from a cycle
that returns the working substance to the same state. Thermodynamics refrigeration cycle removes
heat from low temperature object and reject it at a higher temperature. The cyclic process requires
that work be input so that the second law of thermodynamics is not violated. In this report, I will
be analyzing the vapor-compression refrigeration cycle used in my air conditioner and refrigerator
on a thermodynamics and economics level. Finally, I will find ways to improve the performance
of the air conditioner or refrigerator based on the above analysis.
Thermodynamics Considerations
Figure 1: Vapor-Compression Refrigeration cycle
The Fig.1 above represents the different components of the refrigeration cycle. There are four:
1. Compressor.
2. Evaporator Absorbs heat from refrigerated space.
3. Condenser Rejects heat to surroundings.
4. Expansion valve.
States:

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Table of Contents Introduction ................................................................................................................................................... 2 Thermodynamics Considerations .................................................................................................................. 2 Thermodynamics Analysis............................................................................................................................ 4 Proposed improvements ................................................................................................................................ 6 Economics effect........................................................................................................................................... 7 Conclusion .................................................................................................................................................... 8 Table of Figures Figure 1: Vapor-Compression Refrigeration cycle ....................................................................................... 2 Figure 2: T-S diagram of the refrigeration cycle .......................................................................................... 3 Figure 3: Actual vapor-compression refrigeration cycle .............................................................................. 4 Introduction The term refrigerator describes the process in which the system temperature maintained below the atm ...
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Anonymous
Awesome! Perfect study aid.

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