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首页> 外文期刊>International journal of sustainable energy >Thermal performance enhancement of box-type solar cooker: a new approach
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Thermal performance enhancement of box-type solar cooker: a new approach

机译：箱式太阳灶热性能增强：一种新方法

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摘要

A comparative experimental study of two box-type solar cookers with different cooking environments was conducted. The first one with natural convection heat transfer-based and the second one with forced convection heat transfer (fan for flowaugmentation)-based environment. The experimental results showthat the forced convection-based environment remarkably improves the thermal performance of box-type solar cooker. Forced convection-based cooker is able to cook food at much faster rates compared with natural convection-based cooker. This reduces the cooking time considerably. Results of thermal performance tests show (i) stagnation absorber plate temperatures of 133.9?C and 119.3?C and (ii) boiling times of 52 min (3120 s) and 75 min (4500 s) for heating 1 kg of water, for the cooker with and without fan, respectively. The solar cooker performance has been rated using the first figure of merit (F_1) on the no-load test and the second figure of merit (F_2) on the sensible heat tests. The cooking time was considerably reduced by 30.6%. The tests were carried out on the research unit in Government Engineering College Ajmer, Rajasthan located at 26?27′ N latitude and 74?42′ E longitude in India.
机译：进行了两种不同烹饪环境的箱式太阳灶的对比实验研究。第一个环境基于自然对流换热，第二个环境基于强制对流换热（用于流通的风扇）。实验结果表明，基于强制对流的环境显着提高了箱式太阳能炊具的热性能。与自然对流式炊具相比，强制对流式炊具能够以更快的速度烹饪食物。这大大减少了烹饪时间。热性能测试结果表明：（i）加热1千克水时，（i）滞热板温度为133.9？C和119.3？C，并且（ii）沸腾时间分别为52分钟（3120 s）和75分钟（4500 s）。带有和不带风扇的电磁炉。使用空载测试的第一品质因数（F_1）和显热测试的第二品质因数（F_2）对太阳能炊具的性能进行了评估。烹饪时间大大减少了30.6％。测试是在印度拉贾斯坦邦阿杰梅尔政府工程学院的研究部门进行的，该研究室位于北纬26？27'和东经74？42'。

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