Experimental investigation on heat extraction from a rock bed heat storage system for high temperature applications
DOI:
https://doi.org/10.17159/2413-3051/2016/v27i2a1339Keywords:
rock bed storage, heat extraction, air flow rates, boilingAbstract
Solar energy is available in an intermittent way, and integrating an energy storage system with solar energy collection devices may promote uninterrupted supply of energy in the absence of the availability of solar energy. It has been shown that heat can be stored using rocks packed in a bed, but limited work has been reported on heat extraction from a charged rockbed. This paper reports on the heat extraction from a charged rock bed. Discharging tests were performed under different air flow conditions and initial bed temperatures. Without the blower, the discharging rate is very slow. The discharging rate can be increased, and the cooking time controlled by adjusting the air speed through the rock-bed system.Downloads
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Published
2016-07-20
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How to Cite
Experimental investigation on heat extraction from a rock bed heat storage system for high temperature applications. (2016). Journal of Energy in Southern Africa, 27(2), 30-37. https://doi.org/10.17159/2413-3051/2016/v27i2a1339