Abstract
This article deals with the energetic and exergetic analyses, which provides an alternative means of evaluating and comparing the performance of solar cookers. In this experimental setup, three different types of solar cookers have been studied during the typical day from November to January under Indian climatic conditions. The experimental time period was from 09:00 to 14:00 solar time. It was found that the animal feed cooker (AFC), hot box cooker (HBC), and parabolic dish type cooker (PDC) showed maximum energy and exergy efficiencies during the month of November compared to December and January. The energy efficiency of these cookers in November was about 36.74%, 60.94% and 14.45%, respectively, whereas exergy efficiency was 3.62%, 8.71%, 1.41%, respectively. The average energy output of AFC, HBC, and PDC during November was 247.80, 327.60, and 260.40 kJ/day, respectively, whereas the exergy output was 19.02, 33.32, and 21.34 kJ/day, respectively.
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