23-10-2014, 02:52 PM
Abstracts: This work investigates the result of an experimental study carried out todetermine the performance of domestic refrigerator when a propane-butane mixture isliquefied petroleum gas (LPG) which is locally available and comprises 24.4% propane, 56.4% butane and 17.2% isobutene which is very from company tocompany. The LPG is cheaper and possesses an environmental friendly nature with noozone depletion potential (ODP). It is used in world for cooking purposes. The variousmethods of refrigeration on the basis of standard refrigerant discussed. He refrigerator used in the present study is of medium size with a gross capacity of 125 litre and isdesigned to work on LPG. The performance parameters investigated is therefrigeration effect in certain time. The refrigerator worked efficiently when LPG wasused as refrigerant instead of CFC 12. The evaporator temperature reached -5 ºC withand an ambient temperature of 12 ºC. Also from the experiment which done inatmospheric condition, we can predict the optimum value of cooling effect with thesuitable operating condition of regulating valve and capillary tube of the system. Theresults of the present work indicate the successful use of this propane-butane mixtureas an alternative refrigerant to CFC 12 in domestic refrigerant