Determination of Refrigerating Effect using LPG as a Refrigerant using Different Capillary Tubes

The project analyses the result of an experimental study carried out to determine the performance characteristics of a simple refrigerator when domestic liquefied petroleum gas (LPG) which is locally available which comprises of 24.5% propane, 56.5% butane and 17.3% isobutene which is varied based on the company is used as a refrigerant. The LPG is cheap and possesses an eco-friendly nature with zero Ozone Depletion Potential (ODP) and zero Global Warming Potential (GWP). It is used worldwide mostly for cooking purposes. The refrigerator used in our experimental setup is designed to work on LPG. The performance characteristics analysed is the refrigeration effect and the evaporator temperature in certain time. The refrigerator worked fair enough when LPG was used as a refrigerant instead of traditional R134a. The evaporator coil temperature reached 8áµ’C with an ambient temperature of 33áµ’C. Also the experiment is carried out in atmospheric conditions, so that we can calculate the best value of cooling effect with the suitable operating condition of regulating valve and capillary tube of the system.