Net Refrigerating Effect of a Refrigerant

What is the net refrigerating effect of a refrigerant?

a) Discharged by the condenser.

b) Absorbed by the refrigerant in the evaporator.

c) Absorbed by the refrigerant in the condenser.

d) Discharged by the refrigerant in the evaporator.

Answer:

The net refrigerating effect of a refrigerant refers to the heat absorbed by the refrigerant in the evaporator (B).

The net refrigerating effect of a refrigerant refers to the total amount of heat absorbed by the system that is used to cool the environment. In the case of a refrigerator, the refrigerant absorbs heat from inside the fridge, particularly at the evaporator, and moves it outside the fridge, primarily at the condenser.

Initially, the refrigerant is in a gaseous state in the evaporator. Here, it absorbs heat from inside the refrigerator, which causes the inside to become cold. This absorption of heat makes the refrigerant evaporate and turn into a vapor. The vapor is then compressed in the compressor, becoming hot. The hot vapor then moves to the condenser, where it releases its heat to the surroundings and becomes a liquid once again. The liquid refrigerant then returns to the evaporator, and the cycle repeats.

The key principle behind the net refrigerating effect is the continuous movement of heat from a colder region to a warmer region, allowing the refrigerant to absorb and release heat to maintain a cool environment inside the fridge.