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Harmim A.,Unite de Recherche en Energies Renouvelables en Milieu Saharien | Merzouk M.,Blida University | Boukar M.,Unite de Recherche en Energies Renouvelables en Milieu Saharien | Amar M.,Unite de Recherche en Energies Renouvelables en Milieu Saharien
Solar Energy | Year: 2012

A novel design of solar cooker is introduced. The cooker is of box-type equipped with an asymmetric compound parabolic concentrator (CPC) as booster-reflector. It consists of an insulated box equipped with a vertical double glazing cover on a side, and a vertical absorber plate laid out just behind the transparent cover. The booster-reflector is fixed on the glazed side of the box. The absorber plate and the glazing form a vertical channel, open at the top and bottom, and enclosed at the sides. The two openings allow the inside air circulation. A mathematical model of the heat transfer processes involved with this solar cooker, containing a cooking pot loaded with water and deposited on the box floor; was developed and the effects of various parameters, such as solar radiation, load of water and clouds on the dynamic behavior of the cooker are studied. © 2012 Elsevier Ltd. Source


Harmim A.,Unite de Recherche en Energies Renouvelables en Milieu Saharien | Merzouk M.,Blida University | Boukar M.,Unite de Recherche en Energies Renouvelables en Milieu Saharien | Amar M.,Unite de Recherche en Energies Renouvelables en Milieu Saharien
Energy | Year: 2012

The construction and the performance evaluation of a new box-type solar cooker equipped with an asymmetric Compound Parabolic Concentrator (CPC) are presented. The optogeometrical design of the cooker was optimized for Adrar which is located in Algerian Sahara. A thermal model was developed for the cooker and validated with experimental results. The cooker performance was rated by using the first figure of merit (F 1 = 0.1681) and the second figure of merit (F 2 = 0.35). Experimental tests demonstrated that the cooker, which remains in a stationary position during all test period, is suitable for cooking even in winter and without having recourse to tracking towards the sun. © 2012 Elsevier Ltd. Source


Harmim A.,Unite de Recherche en Energies Renouvelables en Milieu Saharien | Belhamel M.,Renewable Energy Development Center Algeria | Boukar M.,Unite de Recherche en Energies Renouvelables en Milieu Saharien | Amar M.,Unite de Recherche en Energies Renouvelables en Milieu Saharien
Energy | Year: 2010

This article provides the results and finding of an experimental work undertaken in the desert of Algeria. That aimed to compare experimental performance of a box-type solar cooker equipped with a finned absorber plate to a similar box-type cooker which absorber plate without fins. Tests have been carried out on the experimental platform of the Renewable Energies Research Unit in Saharan Environment of Algeria at Adrar. Adrar is located at a latitude 27° 53' North and a longitude 0° 17' West. Fins that have been used in solar air collectors enhanced heat transfer from absorber plate to air. Experimental tests have been undertaken as part of this project where was applied this phenomenon to a box-type solar cooker. The results of the experimental investigation have been rigorously analysed and showed that the stagnation temperature for box-type solar cooker equipped with a finned absorber plate was about 7% more than box-type solar cooker equipped with an ordinary absorber plate. The time required for heating water up to boiling temperature in both box-type solar cookers was reduced with about 12% when a finned absorber plate was used. © 2010 Elsevier Ltd. Source

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