THERMAL SCIENCE

International Scientific Journal

Hafiz Muhammad Ali

,

Arslan Iqbal Bhatti

,

Muzaffar Ali

AN EXPERIMENTAL INVESTIGATION OF PERFORMANCE OF A DOUBLE PASS SOLAR AIR HEATER WITH THERMAL STORAGE MEDIUM

ABSTRACT
The performance of a double pass solar air heater was experimentally investigated using four different configurations. First configuration contained only absorber plate whereas copper tubes filled with thermal storage medium (paraffin wax) were added on the absorber plate in the second configuration. Aluminum and steel rods as thermal enhancer were inserted in the middle of paraffin wax of each tube for configurations three and four respectively. Second configuration provided useful heat for about 1.5 hours after the sunset compared to first configuration. Configurations three and four provided useful heat for about 2 hours after the sunset. The maximum efficiency of about 96% was achieved using configuration three (i.e. using Aluminum rods in the middle of copper tubes filled with paraffin wax).
KEYWORDS
paraffin wax, Al rods, SS rods, thermal storage medium
PAPER SUBMITTED: 2014-08-24
PAPER REVISED: 2014-11-11
PAPER ACCEPTED: 2014-11-12
PUBLISHED ONLINE: 2014-12-14
DOI REFERENCE: https://doi.org/10.2298/TSCI140824140A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 5, PAGES [1699 - 1708]
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An experimental investigation of performance of a double pass solar air heater with thermal storage medium

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence