Review of solar-energy drying systems II: an overview of solar drying technology
1999; Elsevier BV; Volume: 40; Issue: 6 Linguagem: Inglês
10.1016/s0196-8904(98)00093-4
ISSN1879-2227
AutoresO. V. Ekechukwu, Brian Norton,
Tópico(s)Greenhouse Technology and Climate Control
ResumoA comprehensive review of the various designs, details of construction and operational principles of the wide variety of practically-realised designs of solar-energy drying systems reported previously is presented. A systematic approach for the classification of solar-energy dryers has been evolved. Two generic groups of solar-energy dryers can be identified, viz passive or natural-circulation solar-energy dryers and active or forced-convection solar-energy dryers (often referred to as hybrid solar dryers). Three sub-groups of these can also be identified, viz integral-type (direct mode), distributed-type (indirect mode) and the mixed-mode type. The appropriateness of each design type for application by rural farmers in developing countries is discussed. Some very recent developments in solar drying technology are highlighted.
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