Design and Development of Portable Vapour Compression Refrigerator

Today we can preserve the food in refrigerator by keeping it at desired low temperature. But when we went for a picnic or for a long journey we require to preserve the food and maintain the beverages at low temperature. In order to maintain the optimal temperature range of 2 to 8áµ’ Celsius for food preservation, these region need reliable refrigeration system. The most of the refrigerator products in the market are not suitable because they are large in size and bulky. In this attention is made on mini refrigerator which are smaller in size and portable. so, we can use this unit to transport the beverages over long distances in remote areas by storing them at low temperature. The aim of this study is to design the components of the mini VCRC one by one and to analyse the cycle. The effect of heat transfer in condensation and evaporation processes has been investigated. Moreover, an isentropic, rotary compressor has been selected for the system. R-134a has been considered as the refrigerant throughout the study. Firstly, the evaporator part will be presented in the report. The design procedure and the dimensions of the evaporator will be mentioned in the other chapter of the report. Also, the design of cabinet is done and the heat losses from each side of the cabinet are calculated to decide the power input required for the stated system.