Now-a-days, domestic refrigerator systems are important for industrial and domestic applications. Refrigerator mostly works on vapour compression refrigerator. The system consists of components like compressor, condenser expansion value and evaporator. The performance of the system depends upon allthe components of the systems. The main objective in this presents work is to verify the performance of a domestic refrigerator of capacity 165L,by using R-134a and R600a as refrigerants, hermetic sealed compressor(R-600a), and wrinkle shaped condenser having 6.4mm & length 8m and compared with that of the existing system. The main objective was to coefficient of performance of refrigerator using wrinkle condenser (as a copper material) verifying effect of performance using normal condenser made of copper material refrigerator capacity 165lts, further an attempt is made in modifying the convectional shaped condenser to wrinkle shaped and with the pitch angle 900 the performance of system is evaluated.Finaly it is noticed that wrinkle shaped condenser has given the maximum cop among all observations