Studies on semi-cylindrical solar tunnel dryers: estimation of solar irradiance

H.P. Garg and Rakesh Kumar

Renewable Energy, 1998, vol. 13, issue 3, 393-400

Abstract: This is the first part of a set of two papers, about the estimation of solar irradiance on the absorber plate and cover of a semi-cylindrical solar tunnel dryer (STD). The second part discusses the modelling and thermal performance results of the STD. A detailed analysis has been carried out in this paper for solar irradiance estimation for the general orientation of the STD with respect to reference positions (N-S, E-W). The obtained values of solar irradiance for the absorber plate and cover includes the internal reflection effect up to second-order. It is found that if the STD axis is in the E-W, the absorber plate receives more solar radiation as compared to the other reference position N-S. The amount of solar irradiation absorbed by the cover is also calculated and found very small compared to the absorber. All calculations have been made for Delhi climate (28.58°N latitude).

Date: 1998
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:13:y:1998:i:3:p:393-400

DOI: 10.1016/S0960-1481(98)00002-0

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