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Consider a vapor refrigeration cycle. a: Draw a T-s diagram in a Reversed Carnot Cycle and...

Consider a vapor refrigeration cycle.

a: Draw a T-s diagram in a Reversed Carnot Cycle and describe what kinds of problems it has if we use the mixture of liquid and vapor as its working fluid.

b: Draw a T-s diagram in the ideal Refrigeration cycle and label each process explicitly.

c: There are Cascade and Multipurpose refrigeration systems to improve the ideal refrigeration system. Describe their cycles explicitly and compare their differences.

d: Discuss the current status of existing refrigerants and describe how to resolve their problems explicitly.

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