Physics 4C 11/30/2020
Coefficient of Performance of a Refrigerator
Introduction
In this experiment, you will have the opportunity to work with an actual refrigeration system that was
specifically designed for your inspection and experimental operation. You will learn how this system
works as well as experimentally determine whether it could function better as a refrigerator or a heat
pump. As a result of this exercise, you will also learn how to measure the COP.
Theory
The Refrigerator
http://www.chemistry.wustl.edu/~courses/genchem/Tutorials/Fridge/refrigeration.htm
http://www.answers.com/topic/refrigeration
http://www.energyquest.ca.gov/how_it_works/refrigerator.html
http://home.howstuffworks.com/refrigerator4.htm
http://web.me.unr.edu/me372/Spring2001/Refrigeration%20Cycles.pdf
http://highered.mcgraw-hill.com/sites/dl/free/0072383321/22365/study_guide_ch10.pdf
1
Evaporator
Intake Valve
Discharge
Valve
Warm
Water
Tap Water
Condenser
Compressor
Expansion Valve
Higher Temp,
Low Pressure, Vapor
Low Pressure, Very
Low Temp, Vapor
Low Pressure, Room Temp, Liquid
Freon Vapor
Freon Vapor
High Temp and Pressure
Cold Water
Experiment
4
