What are the assumptions made for air standard cycle analysis? a. The working medium is prefect gas throughout i. e. it follows PV=mRT
b. The working medium does not undergo any chemical change throughout the cycle
c. The compression and expansion processes are reversible adiabatic i. e. there is no loss or gain in entropy.
d. All of above

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0