Effect of Liquid Subcooling:
This is always desirable to sub cool the refrigerant before throttling. This influenced is illustrated in the following Figure (Figure 8(a) & 8(b)).
It is illustrate from these two figures that the refrigeration effect is enhanced by an area under the procedure 5'-5.
Usually the magnitude of sub cooling is kept among 5 to 10 K. If there is too much sub cooling, then the work input enhanced considerably, therefore offsetting the advantage from the sub cooling of the refrigerant.
![881_Effect of Liquid Subcooling.png](https://www.expertsmind.com/CMSImages/881_Effect%20of%20Liquid%20Subcooling.png)
(a) (b)
Effect of Condensate Subcooling on COP