An encompassing Review on Solar Air Heater
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 10
Abstract
It has been observed that the heat transfer coefficient between absorber surface of collector and flowing fluid i.e. air can be improved by providing artificial roughness on the absorber surface, .In this way the Thermal efficiency is increased. Due to roughness geometry pumping power of solar collector is increased due to friction losses in the duct. So, it is necessary to take into account size, shape and flow pattern of various roughness elements to increase maximum efficiency with minimum frictional losses. Various artificial roughness geometries have been reported in the literature by investigators, for determining the effect of various roughness geometries on heat transfer enhancement and friction characteristics in roughened duct of solar air heater. Reviews of various studies are presented in this paper.
Authors and Affiliations
Jasjeevan Singh
Keywords
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