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Simple Analytical Method for Performance of an Absorber Plate in Flat-Plate Solar Collectors for Two-Dimensional Heat Flow Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Experimental Investigation of the Performance of a Double-Pass Unglazed Transpired Solar Air Heater

Authors : D. K. Rabha, D. Pathak, R. Baruah, T. Kalita, A. Sharma

Published in: Advances in Fluid and Thermal Engineering

Publisher: Springer Singapore

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Abstract

This study presents an experimental investigation of the performance of a double-pass unglazed transpired solar air heater. The performance of the solar air heater was evaluated from the experimental data by energy and exergy analyses. The average thermal efficiency of the solar air heater was found to be 16.9 and 20.6% at the air flow rate of 0.015 and 0.019 kg/s, respectively. The average exergy efficiency was found to be 0.49 and 0.57% at the air flow rate of 0.015 and 0.019 kg/s, respectively. The thermal effectiveness of the heater was 66.6 and 67.1% at the air flow rate of 0.015 and 0.019 kg/s, respectively. The energy and exergy efficiencies and the thermal effectiveness increased with increase in the mass flow rate of air. The performance of this solar air heater is comparable to the conventional glazed solar air heater although it does not have any cover plate.

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Metadata
Title
Experimental Investigation of the Performance of a Double-Pass Unglazed Transpired Solar Air Heater
Authors
D. K. Rabha
D. Pathak
R. Baruah
T. Kalita
A. Sharma
Copyright Year
2019
Publisher
Springer Singapore
Book
Advances in Fluid and Thermal Engineering

Print ISBN: 978-981-13-6415-0

Electronic ISBN: 978-981-13-6416-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-981-13-6416-7_53

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