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research-article

Optimum Heat Source Temperature and Performance Comparison of LiCl-H2O and LiBr-H2O type Solar Cooling System

[+] Author and Article Information
Bhargav Pandya

Department of Mechanical Engineering, Gujarat Power Engineering and Research Institute, Gujarat, 382710, India
bhargavmechatherm@gmail.com

Vinay Kumar

Department of Mechanical Engineering, Gujarat Power Engineering and Research Institute, Gujarat, 382710, India
vinaysharma.energy@gmail.com

Jatinkumar Patel

School of Technology, Pandit Deendayal Petroleum University, Raisan, Gandhinagar, Gujarat, 382007, India
jrpmech@gmail.com

Vijay Matawala

Department of Mechanical Engineering, Gujarat Power Engineering and Research Institute, Gujarat, 382710, India
drvijay.matawala@gperi.ac.in

1Corresponding author.

ASME doi:10.1115/1.4038918 History: Received July 06, 2017; Revised December 28, 2017

Abstract

This comprehensive investigation has been executed to compare the thermodynamic performance and optimization of LiCl-H2O and LiBr-H2O type absorption system integrated with flat-plate collectors (FPC), parabolic-trough collectors (PTC), evacuated-tube collectors (ETC) and compound parabolic collectors (CPC). A model of 10 kW is analysed in Engineering Equation Solver (EES) from thermodynamic perspectives. Solar collectors are integrated with a storage tank which fuelled the LiCl-H2O and LiBr-H2O vapour absorption system to produce refrigeration at 7 °C in evaporator for Gujarat Region of India. The main objective includes the evaluation and optimization of critical performance and design parameters to exhibit the best working fluid pair and collector type. Optimum heat source temperature corresponding to energetic and exergetic aspects for LiCl-H2O pair is lower than that of LiBr-H2O pair for all collectors. Simulation shows that FPC has lowest capital cost, exergetic performance wise PTC is optimum and ETC require lowest collector area. On the basis of overall evaluation, solar absorption cooling systems are better to be powered by ETC with LiCl-H2O working fluid pair.

Copyright (c) 2017 by ASME
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