Thermal Performance Evaluation of the Funnel Solar Cooker of Different Funnel Lengths Implemented in Nagongera, Uganda

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dc.contributor.authorChepkurui, Jonah
dc.contributor.authorBiira, Saphina
dc.date.accessioned2023-04-03T17:38:02Z
dc.date.available2023-04-03T17:38:02Z
dc.date.issued2020
dc.description.abstractThe aim of this study was to evaluate the thermal performance of a funnel solar cooker with different funnel lengths. Four funnel solar cookers of varying funnel lengths were constructed at Nagongera, in Tororo District, Uganda from cheap locally available materials. After construction, four blacked cooking pots of the same size filled with 1 kg of water were each placed in a cooker from 09:00 to 17:00 hrs. The temperature of the water in the pots was recorded after every 2 hours. The maximum temperatures of 93 °C, 84 °C, 68 °C and 58 °C for the funnel lengths of 50 cm, 42.6 cm, 32 cm and 23.3 cm, respectively were achieved at 13: 00 hrs for the average solar intensity of 684 W/m2 and ambient temperature of 27.9 °C. Similarly, as the funnel lengths increased from 23.3 cm to 50 cm, the thermal efficiency of the cooker increased from to 29.2% to 33.2% due to increased solar collecting surface. This indicates that the cooking temperature and thermal efficiency depended on the funnel lengths of the cooker and the time of the day. The results obtained were suitable and therefore the funnel solar cooker can be introduced to the community.en_US
dc.identifier.citationChepkurui, J., & Biira, S. (2020). Thermal performance evaluation of the funnel solar cooker of different funnel lengths implemented in Nagongera, Uganda. Tanzania Journal of Science, 46(1), 53-60. http://journals.udsm.ac.tz/index.php/tjsen_US
dc.identifier.urihttp://journals.udsm.ac.tz/index.php/tjs
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/8400
dc.language.isoenen_US
dc.publisherTanzania Journal of Scienceen_US
dc.subjectFunnel solar cookeren_US
dc.subjectThermal performanceen_US
dc.subjectTime of the dayen_US
dc.subjectFunnel lengthen_US
dc.titleThermal Performance Evaluation of the Funnel Solar Cooker of Different Funnel Lengths Implemented in Nagongera, Ugandaen_US
dc.typeArticleen_US
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