THERMAL PERFORMANCE OF AN EXPERIMENTAL CAR-TIRE SOLAR COOKER

El-Shal, Hanan, M. S.

doi:10.21608/mjae.2016.98155

THERMAL PERFORMANCE OF AN EXPERIMENTAL CAR-TIRE SOLAR COOKER

Document Type : Original Article

Author

Hanan, M. S. El-Shal

Lecturer, Agric. Eng. Dept., Fac. of Agric., Zagazig Univ., Egypt.

10.21608/mjae.2016.98155

Abstract

The aim of this study is evaluating the thermal performance of a simple and inexpensive solar cooker that made locally using the car-tire.The practical experiments were carried out under the local climatic conditions of Zagazig city, Egypt (Lat. 30° 35^\ N and Lon. 30° 31^\ E) for comparing the thermal performance of an ordinary tire-solar cooker (without mirror) and another one provided with booster mirror. The obtained results revealed that, the boosted cooker with mirror achieved stagnation temperature of about 10% more than the ordinary tire-cooker and faster by about 40 minutes with first figure of merit (F1)of 0.12 °C.m²/W ,whereas the ordinary was 0.10°C.m²/W at solar radiation 565 W/m². Also, by increasing the mass of water from 0.5 to 1.5 kg the maximum temperature of water decreased from 87 to 75 °C and from 93 to 84°C for the ordinary and the boosted tire-cooker, respectively. Also, the use of boosted cooker was achieved the boiling temperature (~90°C) for the water mass of 0.50 and 1 kg as 93 and 91 °C, respectively but the ordinary cooker could not reach the boiling temperature at all masses of water under the same climate .The boosted cooker with mirror achieved higher utilizable efficiency (30.46%) than the ordinary one by about 20% at the maximum water mass of 1.50 kg and this cooker with aperture area of 1 m² can boil 1 kg of water in about 16 min at utilizable efficiency of about 26%.Hence, the use the proposed boosted tire-solar cooker can achieve a good thermal performance from small aperture area.

Keywords

References

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