期刊
RENEWABLE ENERGY
卷 179, 期 -, 页码 2071-2085出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2021.08.025
关键词
Solar cooking; Funnel cooker; Experimental test; Side by side; Trivet
In this study, the power values of two funnel cookers were determined using a novel approach that takes into account minor design changes. The new method showed that even small design modifications can have a measurable impact on cooker power. This novel approach shows promise for better understanding the effect of minor design changes on cooker performance.
In present work, the power values of two funnel cookers were determined by following the standard ASAE S580.1 procedure and also a novel improved approach for better analysing the effect of minor design changes. This new approach is based on experimental side by side tests of the two cookers and it adopts a shorter time interval and a curve fitting based on the LOESS adjustment is adopted for the evaluation of the difference in power values of the different designs tested. The two funnel cookers were tested experimentally with a load ratio of 4 kg m-2. The influence of the height of a trivet, from 0 to 100 mm, on the cooker power was evaluated. The estimated changes in power values due to the design changes were low but not negligible. As example, the power standardised increases 6 W when a height trivet of 25 mm is used respecting cooking operation without trivet. The novel approach is promising because it enables to determine the impact of minor design changes on the power of the cooker. The same analysis is not possible to be performed with the standard ASAE S580.1 procedure due to the uncontrollability of the weather conditions. (c) 2021 Elsevier Ltd. All rights reserved.
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