Consider the following statements :
Subcooling in the condenser of a refrigeration system is advisable when
1. expansion value is at a higher elevation than condenser.
2. there is a large pressure drop in the line connecting condenser to the expansion value.
3. the refrigeration effect is to be increased.
4. the compressor work is to be reduced.
Which of these statements are correct ?
Option (A)
1 and 2
Option (B)
1, 3 and 4
2, 3 and 4
1, 2 and 3
Correct Option:
Question Solution:
Subcooling has no effect on compressor work but only increases refrigeration effect. Capillary tubes are horizontal in most of the cases. So no question arises for change in potential energy.