Experimental investigation of a finned pentaerythritol-based heat storage unit for solar cooking at 150-200 °C

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dc.contributor.author NKhonjera, Lameck
dc.contributor.author Kuboth, Matthias
dc.contributor.author König-Haagen, Andreas
dc.contributor.author John, Geoffrey
dc.contributor.author King’ondu, Cecil K.
dc.contributor.author Brüggemann, Dieter
dc.contributor.author Bello-Ochende, Tunde
dc.date.accessioned 2017-08-23T13:23:48Z
dc.date.available 2017-08-23T13:23:48Z
dc.date.issued 2016
dc.identifier.citation Energy Procedia 93; 160 – 167 en_US
dc.identifier.issn 1876-6102
dc.identifier.issn 1876-6102
dc.identifier.uri http://repository.seku.ac.ke/handle/123456789/3526
dc.description DOI: 10.1016/j.egypro.2016.07.165 en_US
dc.description.abstract An experimental study on the charging and discharging performance of a finned thermal energy storage unit (TESu) that utilizes pentaerythritol (PE) as phase change material (PCM) was conducted. It is known that fins enhance the heat transfer within TESu, however, the optimum PCM to fin volume ratio for a particular application is usually unknown. Therefore, this work compares the charging and discharging performances of three rectangular TESu prototypes with 6, 12, and 21 PE to fin volume ratio (P/F) per prototype. The performance comparison was in terms of (1) charging rapidity, (2) heat retention effectiveness, (3) temperature distribution, and (4) the cooking power. It is found that for 6 ≤ P/F ≤21, charging rapidity decreases with PE/fins ratio. On the other hand, the PE/fin volume ratio of higher than P/F > 12 has great influence on heat retention effectiveness, temperature distribution in the TESu, and cooking power. Therefore, 6 < P/F <12 strikes a balance between charging rapidity and discharging performance (heat retention time, improved temperature field as well cooking power). However, generalization to TESu for cooking application pends extension of this work to other PCM operated TESu. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Pentaerythritol en_US
dc.subject fin en_US
dc.subject thermal energy storage en_US
dc.subject solar cooker en_US
dc.title Experimental investigation of a finned pentaerythritol-based heat storage unit for solar cooking at 150-200 °C en_US
dc.type Article en_US

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