Title: Exergy analysis of solid desiccant-vapour compression hybrid air conditioning system

Authors: D.B. Jani; Manish Mishra; P.K. Sahoo

Addresses: Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India ' Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India ' Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India

Abstract: This paper presents energy and exergy analysis of a solid desiccant vapour compression hybrid air conditioning system. Parametric study has been conducted at varying dead state properties and operating conditions to investigate their effects on the overall system performance. The obtained results show that the exergy efficiency of hybrid air conditioning system is 11.45%. The energy-based performance parameters such as the coefficient of performance (COP) and components effectiveness are also presented. The rotary desiccant dehumidifier and heater are found as major contributors to exergy performance of the system. The analysis provides us beneficial knowledge to determine theoretical upper limit of the system performance.

Keywords: COP; coefficient of performance; entropy generation; exergy efficiency; exergy destruction; desiccant cooling; regeneration; solid desiccant; vapour compression; hybrid air conditioning systems.

DOI: 10.1504/IJEX.2016.078106

International Journal of Exergy, 2016 Vol.20 No.4, pp.517 - 535

Received: 13 Jul 2015
Accepted: 28 Feb 2016
Published online: 02 Aug 2016 *

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