Comparative Analysis of Different Solar Assisted Desiccant Cooling Systems

In this work, a comparative analysis of the operation of three different models of solar cooling using a desiccant wheel with solid material filling was made. Each of the models is described in detail, schematically presented, and changes in the state of humid air are shown in the h-x diagram. The existing conventional cooling system is defined as the basic model, with the process of dehumidifying 27,600 m3/h of humid air. On other models, promising improvements were made with the aim of more efficient operation of the system and increase of the total COP, as well as with the aim of using renewable energy sources. The simulation of the operation of the analyzed models was done in TRNSYS for the conditions that describe the parameters of the humid air of the existing system in the operating mode. The analysis of the results included and compared the calculated COP values, referred to the total, primary and electrical energy delivered to the system.