Analysis Methodology three solar cookers, Cash, Parvati and Combined (Box-Parvati)
Keywords:
functional comparison, solar radiation, thermal eficiency, solar energyAbstract
The aim of this article is materialize and evaluate the ef ciency of a new solar cooker prototype which arises from the combination of the fundamental characteristics of two different types of solar cookers: solar box cooker (accumulation stove) and double angle solar cooker or Parvati (concentration stove), although most of accumulation solar cookers resulting from this mixture (re ectors adapted to increase energy capturing) opposite is proposed in this case, to create a greenhouse effect in a concentration stove through the implementation of a cover glass and glass ber insulation in the side surfaces of the stove. With respect to the evaluation, the heat gain rate and the maximum temperature reached of the prototype is compared with its two predecessors. The testing of the three solar cookers were made at the same time under the same solar conditions in Catamayo City, province of Loja. A methodology based on numerical integration is incorporated in order to determine the radiation and ef ciency mean during the tests, as well as the thermal performance of the solar cookers for future application in social sectors in the Southern Region of Ecuador.Metrics
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