论文信息 - Cost—benefit ratio of triple pass solar air heaters

Cost—benefit ratio of triple pass solar air heaters

Abstract In the present study, theoretical models for three pass solar air heaters with single and double cover have been developed, and the effects of depths of inlet (D1), intermediate (D2) and outlet (D3) air ducts, length (L) and air mass flow rate ( m ) on the ratio of annual cost (AC) and annual energy gain (AEG) have been investigated. The performances of these air heaters are compared with those of single pass air heaters with no cover, single and double covers and two pass air heaters with single and double covers. The results are presented in the form of various design curves which will help manufacturers select appropriate designs according to utility.

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