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Technical Brief

IMPROVING HEAT TRANSFER IN HYBRID SOLAR SYSTEMS USING LIQUID METAL ALLOYS AS A COOLANT

[+] Author and Article Information
Ajay Sekar

NEHRU NAGAR,2ND MAIN ROAD Hosur/Tamil Nadu, Tamil Nadu 635110 India
ajayc1160@gmail.com

Prabhu Thangavel

PSG COLLEGE,PEELAMEDU COIMBATORE, TAMILNADU 641004 India
tpr@mec.psgtech.ac.in

1Corresponding author.

ASME doi:10.1115/1.4037821 History: Received August 09, 2017; Revised August 16, 2017

Abstract

An improvement in performance of hybrid solar system with use of liquid metal alloy GaInSn as a coolant has been demonstrated in this study. The performance of hybrid system using GaInSn, water and air as coolants under different operating conditions such as ambient temperature, different inlet velocities of fluid, solar irradiations are analyzed using simulation software ANSYS and the results obtained are validated using experiments. The results obtained from simulations and experiments are used for determining important performance criteria such as electrical efficiency, thermal efficiency and exergy efficiency. The exergy, thermal and electrical efficiencies were found to be at least 11%, 12% and 12% higher for hybrid system using GaInSn as a coolant when compared to hybrid systems using air and water as coolants respectively.

Copyright (c) 2017 by ASME
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