Design and Realization of a Mixed Solar

The depletion of fossil energy and his consumption in cooking as the use of firewood are contributing to increase the problem of climate change. It is urgent to find alternative energy sources to take over the situation when the areas are being blessed with higher solar energy potential. The present work concerns design and realization of a mixed solar cooker. It consists of a parabolic reflector of 1 meter and 0.24m focal point and a box type size of 0.864 dm³. The temperature and irradiance measurements were carried out using a pyrometer and PT 100 sensors. The data were recorded using an acquisition unit (ALMEMO 2390). The design was made by a basic theoretical model developed from the heat transfer equations and simulated using MATLAB software. The tests carried out show that without a sun tracking and without regulating, the temperature inside the cooker rises and reaches the maximum of 95.5°C for a day during which the average irradiance is 690.13 W/m². Without temperature regulation and with manual sun tracking, the temperature is not constant and the maximum value obtained in the cooker is 168°C for an average irradiance of 716.86 W/m². The cooking of 2 liters of sorghum wort.