Theoretical Analysis of Desiccant Cooling System: A Case Study

This paper presents a theoretical analysis of desiccant cooling system based on second law analysis for the environment condition of Kurukshetra, Haryana, India. Desiccant cooling system worked on ventilation and recirculation mode. Renewable energy and low grade or waste energy can be used in the system. In this analysis, coefficient of performance (COP) is to be calculated in both ventilation and recirculation mode and found the best mode for the system according to environment condition. A very few studies have done on the second law aspects of these system. The reversible COP depends on the operating parameters and the analysis is based on certain operating conditions for the desiccant dehumidifier. The thermal and reversible COPs of an open desiccant cooling system depend on operating conditions of the system. A second law analysis is performed and reversible COPs are 2.26 and 2.56 in ventilation and recirculation mode respectively at ambient condition for month of May 43.3◦C and 20%RH of Kurukshetra, Haryana. The results of the analysis provide an upper limit for system.