Abstract: In this paper, the design of a box type solar cookeris presented first. The main components of this solar cooker are inner and outer reflectors, a double glazing, an absorber plate and a cooking box. Secondly, in order to predict the evolution of the temperatures of the main components of the solar cooker,a mathematical model was developed and implemented in a MATLAB program using finite differences method. To validate the accuracy of the calculations further numerical simulations were realized using Solidworks simulation tool. After that, simulations were developed on the solar cooker before enhancement and after enhancement with four outer reflectors. The obtained results show that the enhancement has a great influence on the maximum temperature of each component and on the availability of the solar cooker.

Key words: Design, box type solar cooker, mathematical model, numerical simulations, reflectors.