Abstract:
The industries utilize fluid heating and cooling in various applications such as production, power generation, electronics, and transportation. Many techniques have been applied / proposed to efficiently convert solar energy into thermal energy. These enhancements techniques include employing corrugated absorber plate, adding extended surfaces to the upper or lower channels, integrating artificial roughness on heated plate, jet impingement on plate and use of energy storage medium. Jet impingement is a well-known method which enhances the amount of heat that is transferred convectively from the working fluid to the absorber plate. The study of the heat transfer process employing diverse geometrical jet configurations, which are of relevance in a wide range of engineering applications, is still lacking despite the enormous number of jet impingement studies. The present study rigorously analyzed the previous works to provide essential information regarding crucial roughened geometries and geometric parameters for optimum heat transfer enhancement. This is very crucial information/aid for technical people and researchers working in the field, performance improvement of solar air heaters. The precise information related to flow parameters and heat transfer can be used by researcher in their future work which save the time as well as cost of experimental set up. The current review research's goal is to analyze and assess the systems and technologies that are already in use and those that will likely be developed in the future. If decision-makers and practitioners wish to choose the most cutting-edge and inventive technologies for heat transfer enhancement, this article may help to provide guidance. As a result, the findings of this review article may be very beneficial to distinct energy sector stakeholders.
