Performance Evaluation of Air Conditioning and Refrigeration Parts

Capstone thermo fluid engineering
[Document subtitle]
MAY 31, 2018

Contents
Name of Experiment..............................................................................................................................1
Objectives:.............................................................................................................................................2
Theory...................................................................................................................................................2
Working principle..................................................................................................................................2
Formula used.........................................................................................................................................5
Apparatus used......................................................................................................................................6
Accessories............................................................................................................................................6
Procedure..............................................................................................................................................6
Result.....................................................................................................................................................8
Discussion..............................................................................................................................................8
Conclusion.............................................................................................................................................8

Name of experiment: Evaluate performance characteristic of air conditioning
and refrigeration parts.
Objectives:
 To demonstrate and evaluate by comparison with theory basic air conditioning
(psychometric) process.
 To obtain efficiency curve of the steam generator.
 To perform energy and mass balance on above.
 To discuss the result and identify source of possible error in the measurement.
Theory: The basic refrigeration and air conditioning system obtained is air cycle
refrigeration system. It basically works on revers Carnot cycle. It belongs to the general class
of gas cycle cooling system in which gas (air) is used as the working fluid. The Gas do not
undergoes and stage change through the cycle i.e. all the internal heat transfer process are
sensible heat transfer process. (David & A., 1999)
There are some assumption needed before studying the above cycle:
 Working fluid behave as an ideal gas
 Cycle is supposed to be closed loop cycle
 All the process are reversible (internally reversible)
 The cycle heat remains constant through the cycle.
Working principle:
The reversed Carnot cycle consists of the following four process
Process 1-2: reversible, adiabatic compression in compressor.
Process 2-3: reversible, isothermal heat rejection in a compressor.
Process 3-4: reversible, adiabatic expansion in turbine.
Process 4-1; reversible isothermal head absorption in a turbine.