Feasibility Performance Analysis of Single Effect Vapour Absorption System in Milk Processing Plant (KEY IJP************479)

• Suraj Kumar,Sujeet Kumar Singh

Abstract

Milk is one of the best food available due to its nutrition values. For production of processed milk and other dairy products, quality Milk processing plants are required. Milk processing includes pasteurization, homogenization, evaporation, drying etc. In this study, system of a milk pasteurization process assisted by VAR is thermodynamically modelled. The whole energy requirement of the pasteurization system was supplied from Single Stage LiBr VAR was used for both heating and cooling purposes. The heat exchangers were modelled with energy balances, based on the streams inlet and outlet enthalpies and mass flow rates. The refrigeration unit was based on a simple vapour compression cycle using LiBr as a refrigerant. The energy analysis of the model was based on the 1st law of thermodynamics. An EES code has been developed using computer simulation program for simulating the cycle and validation of results with experimental one. . The effect of exit temperature of generator, condenser and evaporator on COP, and heat load, have been analyzed and validated with the operating parameters as generator temperature (75C), absorber temperature (30C), condenser temperature (30C) and evaporator temperature (5). It was found that the COP of the system increases with increasing the generator exit temperature and evaporator exit temperature while it is decreasing with increasing condenser exit temperature.