VAPOUR COPRESSION TEST
AIM OF THE EXPERIMENT: Determination of COP actual & COP theoretical of vapour compression
APPARATUS REQUIRED: 1.Vapour compression refrigeration test rig.
2. Stop watch.
A vapour compression refrigeration system is improved type of refrigeration system in which suitable
working substance termed as refrigerant is used, it condensates and evaporates at temperature and
pressure close to atmospheric conditions. The refrigerants used for this purpose are ammonia, carbon
dioxide, and sulphur dioxide. The refrigerant used does not leave the system, alternatively condensing
and evaporating. In evaporation, the refrigerant absorbs it’s latent heat from which it is used for
circulating it around the cold chamber while cost during it gives latent heat to the circulating water of
the cooler. The VCS is thus latent heat pump as it pumps its latent heat from brine end and delivers it
to the cooler. It is generally used for all individual purposes from small domestic refrigerator to a big
air conditioning plant.
1. It has similar size for given capacity of refrigerator.
2. It has less running cost.
3. It is employed for large range of temperature.
4. The COP is quite higher.
1. The initial cost is higher.
Prepared By Er. Manoj Kumar Rout