A review of solar air collectors with baffles and porous medium: Type and applicatios

Abstract

The use of different types of porous media and barriers inside solar air heaters is our goal in this survey article. The influence of different barriers and porous materials of various shapes and types within the solar air collectors and the impact of different engineering parameters on heat transfer procedures and fluid movement had been discussed by examining their thermal and hydraulic performance. Numerical and experimental analyses were presented on different types of flat solar air collectors containing differently shaped baffles or various porous media with different strategies to enhance heat transfer such as fluid flow measurement, pressure drop control, and checking their thermal and hydraulic performance by measuring the increase in air temperature at intensity Solar radiation and fluid mass flow. Studies show that the presence of porous media enhances the heat transfer process and increases the efficiency of solar air collectors. The types different of solar air collectors have been shown. There are outstanding applications of solar air collectors in the industrial projects such as cooling and heating various buildings, heating air for combustion processes, and drying coal and paper.