The main aim of this experimental study was to check the coefficient of performance on the Vapour Compression
Refrigeration System by changing the shape of the capillary tube and by changing the refrigerants. Investigated the effect of
Nano Refrigerant on the Coefficient Of Performance of Vapour Compressor Refrigeration Cycle. Compared the Coefficient Of
Performance on the basis of R-22 (Difluoro-Monochloro Methane (CHF2CL) or R-22) and Al2O3 Nano particles mixed R22.The shape of the capillary tubes and the refrigerants is altered to study its effect on the performance of vapour compression
refrigeration cycle. The shapes of Capillary tubes used were Serpentine Shape and Cubic Shape.