THERMAL PERFORMANCE ANALYSIS OF A HYBRID BOX TYPE SOLAR COOKER USING FINNED COOKING POT

Solar energy is very large, in exhaustible source of energy. The use of renewable energy is receiving growing interest worldwide. Cooking is the measure necessity for people all over the world. This paper presents the fabrication details and on-field experimental studies of a novel hybrid box type solar cookers, suitable for cooking requirements of small family. The objective of the study is to enhance the heat transfer rate and to reduce the cooking timings by consumption of minimum heat energy. Small size, high thermal performance, light weight, low-cost and short payback periods are some important features of these cookers. The values of some essential thermal performance parameters, first figure of merit (F1), second figure of merit (F2) and standard cooking power suggested by Bureau of Indian Standards and International Standard for box-type solar cookers, have been evaluated by experimental studies. A comparative analysis of the thermal performances of the hybrid solar cookers, developed by many authors, has also been presented here with proper analysis. Main objective of experiment is to enhance the heat transfer rate and to reduce the cooking timing by consumption of minimum energy. Small size, high thermal performance, light weight, low cost are the important features of the cooker. It can be use any time day and night with electrical back up.

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