Performances Improvement of Solar Stills by Reflector External

The solar cascade still performance is investigated by computer simulation in terms of cascade stills efficiency and specific boiling times. Numerical calculations have been carried out for different tilts angle of the outer reflector on typical day (02-out) in East Algeria (Constantine). To do this work, one has to adopt a theoretical approach who consists in simulating this behavior by a computer program using a mathematical model where all the parameters characterizing the performance of the system are evaluated instantaneously during the period of sunning, Temperature of each element of distiller, thermal efficiency.

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