Performance of a thermal trap flat-plate solar energy collector

Sant Ram, N. K. Bansal and H. P. Garg

Applied Energy, 1982, vol. 10, issue 3, 203-214

Abstract: The performance of a thermal trap flat-plate solar energy collector has been investigated theoretically and validated experimentally, from the point of view of stagnation temperature. The theoretical model is based on the periodic solution of the heat conduction equation and takes into account the internal emission of the thermal trap material. The model explains the experimental measurements fairly well. It is found that the trap material should have an optimal thickness in order to obtain the maximum plate temperature. The thickness of the air gap between the trap material and the cover has only a very marginal effect on the stagnation temperature.

Date: 1982
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