Abstract

Abstract In this research, asphalt Solar Collector ASC was built outside the laboratory. Atmospheric air was used as a working fluid. The effect of the environmental conditions such as ambient temperature, wind speed, variation of solar day time, and ASC chimney height are considered. The construction of the ASC system consists of aluminum buried pipes under asphalt layers with the two ends open. In the present study for the construction of the used ASC and its thermal properties, experimental were carried to evaluate the effect of chimney height on the flow field. The results showed that the chimney height has a strong effect on the average air flow velocity through the ASC. Also, the ASC prototype performance for collecting the solar energy and transferring it to the flowing ambient air depends on the used chimney height, as well as the environmental/atmospheric conditions in terms of ambient air temperature, and wind speed.

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