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2020 | OriginalPaper | Chapter

16. Special Topic: Performance of Solar Air Heater

Author : Rajendra Karwa

Published in: Heat and Mass Transfer

Publisher: Springer Singapore

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Abstract

A mathematical model of a smooth duct solar air heater is given in this chapter that can be utilized for the study of the thermohydraulic performance of solar air heaters with the variation of ambient, operating and design parameters. Different correlations for the estimate of the wind heat transfer coefficient and sky temperature and discussions on the same have been given. Artificial roughnesses on the air flow side of solar air heater absorber plate proposed for performance enhancement have been discussed. Heat transfer and friction factor correlations for some roughness geometries have been presented followed by typical results of a performance study of solar air heaters with 60° v-down discrete rectangular cross-section repeated rib roughness on the air flow side of the absorber plate.

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previous chapter Mass Transfer
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Metadata
Title
Special Topic: Performance of Solar Air Heater
Author
Rajendra Karwa
Copyright Year
2020
Publisher
Springer Singapore
Book
Heat and Mass Transfer

Print ISBN: 978-981-15-3987-9

Electronic ISBN: 978-981-15-3988-6

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-981-15-3988-6_16

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