THERMAL PERFORMANCE OF A GLASS BALL SOLAR COOKER | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 11, Volume 21, Issue 1, January 2007, Page 141-150 PDF (386.99 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2007.197529 | ||||
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| Author | ||||
| Ragab I. A. Mourad | ||||
| Soils and Water Dept., Fac. of Agric., Fayoum University. | ||||
| Abstract | ||||
| A glass ball solar cooker (GBSC) with and without reflector dish was employed to utilize the energy in cooking process. Some variables were investigated to evaluate the GBSC performance, (solar intensity, ambient air temperature, wind speed and relative humidity). The performance was characterized by water temperature within the cooker vessel, with and without reflector dish. Thermal analysis was applied in GBSC with reflector dish to study the solar radiation behavior within GBSC. A statistical model, based on step-wise regression analysis revealed significant relationships between these variables at the level of 0.001 significance, except relative humidity was not significant. Results showed that, water (1 kg) in vessel cooker needs 90 minute to boil at 100 oC, while 0.5 kg of rice needs 165 minute to cook, with the reflector dish. The maximum efficiency of GBSC was about 23.6%. | ||||
| Keywords | ||||
| Solar cooker; reflector dish; intensity; concentrating cooker | ||||
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