Abstract

The development of an augmented integrated rock system is described in this paper. A unique AIRS (Flat Plate air heater connected in series with an integrated rock storage and collection system) concept is used as the absorber plate-to-air stream and then air stream-to-rock bed storage and collection unit heat transfer mechanism. The intention was to increase the efficiency of the air heater, over that of a ‘conventional’ type solar air heater by increasing the absorber area which includes the metallic absorber plate and the rock surface exposed directly to the sun. The programme objective was to design a device which can store the energy during its operation and supply it during the evening and late night hours when there is no sun in the sky. In order to achieve this goal, we have fabricated, tested and evaluated ‘AIRS’, and the results obtained are presented in this paper.

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