Investigating the Effect of Different Heat Storage Media on the Thermal Performances of Double Exposure Box-type Solar Cookers

Babatunde Olusola Adetifa, Ademola K. Aremu

Abstract


This paper investigates the effect of some heat storage materials on the thermal performances of double exposure box-type solar cookers. Benzoic acid, stearic acid and vegetable oil were used in storing heat in double exposure box-type solar cookers. Using standard methods, some thermal performance parameters were evaluated and compared to a control design (no heat storage). The average first figure of merit were; 0.13, 0.14, 0.12 and 0.11 ℃ m-2 W-1 for benzoic acid, control, stearic acid and vegetable oil cookers, respectively, while their respective second figure of merit were; 0.45, 0.40, 0.10 and 0.12. Benzoic acid influenced a higher thermal performance while stearic acid and vegetable oil had a reduction effect. Benzoic acid and vegetable oil had significant effect on the cooking power of the solar cookers while stearic acid had effect on the first figure of merit.

Keywords


Cooking power; figures of merit; solar cookers; heat storage; thermal performance

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DOI (PDF): https://doi.org/10.20508/ijrer.v6i3.4228.g6894

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