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Experimental investigation on heat extraction from a rock bed heat storage system for high temperature applications
Ist Teil von
Journal of energy in Southern Africa, 2016-05, Vol.27 (2), p.30-37
Ort / Verlag
The Energy Research Centre of the University of Cape Town
Erscheinungsjahr
2016
Link zum Volltext
Quelle
EZB*
Beschreibungen/Notizen
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.