Thermal Analysis of a Residential Absorption System based on Solar Using R-32

By Engr.Tayyeb Altaf, Instructor HVACR, GCT Rawalpindi

Environmentally conscious initiatives seek to advance technology so that humans can be powered by renewable energy sources. Simulating an absorption air-conditioning system with solar for a single-family home is the study’s primary goal. The transient energy modelling software TRNSYS will identify, for maximum output, and simulate the key performance parameters. Five thermal loops are part of the intended model: the one is solar loop which contain solar collector with evacuated-type solar collectors made of glass and having R-32 as a means of heat exchange medium and a heat storage tank, The second circuit includes a hot water stream absorption chiller, the third loop is a cooling tower water circuit, the fourth circuit includes chilled water to the chiller, and the last circuit is to deliver air to room for cooling. The study location had a climate similar to that of Rawalpindi and had a good chance of allowing the suggested system to satisfy household air conditioning needs for Rawalpindi’s climate. The average temperature of collector outlet 100◦C has remained recorded throughout the entire month. Collector delivers valuable energy addition with an average rate of 2000 kJ/hr. Average value of room temperature is 24◦C.