review · Alexandria Engineering Journal
Fluid heating and cooling processes are essential across sectors such as manufacturing, power generation, electronics, and transportation. Efficient conversion of solar energy into thermal energy frequently relies on heat transfer enhancement methods, including corrugated absorber plates, extended channel surfaces, artificial surface roughness, and jet impingement. While jet impingement effectively improves convective heat transfer to absorber plates, the performance across diverse geometrical jet configurations has remained underexplored. This review evaluates existing studies to identify critical roughened geometries and geometric parameters that optimise heat transfer, with specific relevance to solar air heaters. By compiling precise data on fluid flow and thermal behaviour, the review provides a foundation for technical researchers to design future work while reducing experimental setup costs and time, assisting decision-makers in evaluating emerging thermal technologies.
Improving heat transfer efficiency is vital for cleaner energy systems and industrial thermal management. By collating and assessing data on jet impingement configurations, this work provides researchers and engineers with the technical benchmarks needed to design higher-performing solar air heaters and cooling systems, reducing the need for costly and prolonged preliminary laboratory trial and error.
The findings are targeted at solar air heater development alongside cooling applications in power generation, electronics, and transportation. Because this work is a secondary review of existing literature rather than an experimental device, it stands at the early design and planning stage. Technology transfer officers and industrial engineers can use the consolidated geometric parameters to inform future prototype development and equipment selection.
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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.
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DOI: 10.1016/j.aej.2023.02.013
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