A) Find the rate at which work is added in the compressor, in kJ/min. B) Find the coefficient of performance of the refrigeration cycle. C) Find the specific enthalpy of the refrigerant when it is a saturated liquid at 300 K. D) All of the work for the compressor is supplied by a Rankine heat engine that has an efficiency of 25%. Find the rate at which heat is removed from the condenser in this Rankine heat engine.
3. A steady state refrigerator operates on the vapor compression cycle. The refrigerant, in the vapor phase, behaves as an ideal gas with CP*=6R, and the specific enthalpy of the compound in saturated liquid and saturated vapor states at 270 K is given in the table below.
• The flow rate of the refrigerant is 100 mol/min.
• The vapor entering the compressor is saturated vapor at 270 K.
• The efficiency of the compressor is 75%.
• The liquid exiting the condenser is saturated liquid at 300 K.
• The mixture exiting the valve is 20% vapor and 80% liquid.
• There is no significant pressure change in either heat exchanger.
You might also like to view...
In its history, SkillsUSA has served more than _____.
a. 1.5 million members b. 5.5 million members c. 7.5 million members d. 10.5 million members
Explain the procedure of threading metal
What will be an ideal response?
Leaks can be found by adding dye to the ATF and then using _________ to look for the leak
A) A black light B) A water spray bottle C) A trouble light D) Any of the above
Noncondensable gases have a negative effect on system performance because, if not removed, they will migrate to the condenser coil. This leads to a number of problems. List six such problems.
What will be an ideal response?