Study of honeycomb solar air heater: Part 1 - Optimization of honeycomb dimensions for maximum solar heat gain

Muhammad Faisal HASAN; Kyaw THU; Takahiko MIYAZAKI; Shigeru KOYAMA

doi:10.1299/jsmeenv.2017.27.405

2017.27

Session ID : 405

DOI https://doi.org/10.1299/jsmeenv.2017.27.405

Conference information

Host: The Japan Society of Mechanical Engineers

Name : [in Japanese]

Date : July 10, 2017 - July 12, 2017

Study of honeycomb solar air heater: Part 1 - Optimization of honeycomb dimensions for maximum solar heat gain

*Muhammad Faisal HASAN, Kyaw THU, Takahiko MIYAZAKI, Shigeru KOYAMA

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Keywords: solar air thermal collector, honeycomb design, dimentions, solar heat gain, absorber to air heat transfer

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Abstract

Honeycomb solar air heating system is highly efficient as compared to conventional solar air heaters. Efficiency of solar air heating systems depends on high solar heat gain and higher heat transfer rate from the absorber plate to air. Honeycomb type absorbers are employed for high solar energy absorption rate. The air to be heated, passes through the honeycomb hole and sides of the honeycomb absorber. To maximize the absorption of solar thermal energy several dimensions and orientation of honeycomb are necessary to be considered. Maximizing the solar heat gain is also dependent on solar altitude angle and local coordinates. Optimization of honeycomb dimensions considering the solar angles, local coordinates, tilted surface radiation characteristics etc. has been discussed in this paper.

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