N2 - The production of thermal energy from solar energy by flat collectors finds nowadays many applications due to their innumerable economic and environmental interests. Currently, conservation of energy resources has become a global priority. On the other hand, given the dizzying demand for energy, has led specialists to find new techniques, such as renewable energies (solar, wind and geothermal). The present work is a contribution, by numerical simulation, to the study of heat transfer in flat solar collectors. On the basis of some experimental data, several simulation calculations have been carried out in order to determine the influencing parameters allowing better performance of the sensors and ensuring a good homogeneity of the temperature distributions. Based on the observation that, due to the low thermophysical properties of the air used as heat transfer fluid, solar air collectors rather give poor yields. It has been found very useful to have ‘baffling’ obstacles of various shapes and forms in the solar collector duct. This increases the thermal transfer of a coolant, which clearly improves the thermal efficiency of the solar air collector. This article consists mainly of studying the effects on heat transfer of turbulent forced convection by baffles of zigzag shapes, placed in a rectangular channel, using the finite volume method. The pressure-velocity coupling has been processed by the SIMPLEC algorithm. The results are presented in terms of the average Nusselt number and temperature field for different positions. L1 - http://journals.pan.pl/Content/109650/PDF/08_paper.pdf L2 - http://journals.pan.pl/Content/109650 PY - 2018 IS - No 4 EP - 156 KW - heat transfer KW - Turbulent flow KW - forced convection KW - Rectangular pipe KW - Baffle A1 - Guendouz, Nabila A1 - Bibi-Triki, Nacereddine A1 - Didi, Faouzi A1 - Zidani, Chhafika PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences VL - vol. 39 DA - 2018.11.26 T1 - Numerical study of an air plane solar collector with baffle in zigzag form SP - 141 UR - http://journals.pan.pl/dlibra/publication/edition/109650 T2 - Archives of Thermodynamics