Selection of the Capillary Tubes for Retrofitting in Refrigeration Appliances

Retrofitting the refrigeration appliances using the capillary tube is reviewed in this paper. If the refrigerant is changed in the existing system, the COP of the system will be affected. It is necessary to do some modifications in the existing system and retrofit it. Changes in compressor design are too complicated and expensive. Hence modification in capillary tube dimensions is preferred so as to compensate for the performance of the system.