Solar energy paper index
Investigation of heat transfer enhancement in impinging jet-dimpled-protruded solar air heaters
One-line summary
A solar energy research paper on Investigation of heat transfer enhancement in impinging jet-dimpled-protruded solar air heaters.
Engineering notes
Engineering notes will be added by the Power for Solar editorial team.
Chinese explanation / 中文解读
中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。
Original abstract
Solar energy is a source of renewable energy and is considered a clean, convenient,sustainable, safe, abundant, and economical source. Solar Air Heaters (SAHs) are oneof the applications of solar energy. SAH has a wide variety of applications but has lowthermal efficiency. This low thermal efficiency is due to the low thermal capacity ofthe air, and the poor process of heat transfer between the absorbing plate channel andair.With the aim to improve thermal efficiencies, the novel dimple/protrusion surfaceshave been incorporated onto the 307 × 212 mm aluminum absorbing plate. A 3 × 3array of 5 mm impinging jets is used to further decrease the temperature of the plate.A set of five different plate configurations, i.e., smooth, dimpled, dimpled-protruded,protruded-dimpled, and protruded configurations are simulated by using the experimentallyvalidated Computational Fluid Dynamics (CFD) model. The values of heattransfer enhancement, pressure drop, and Thermal Performance Factor were evaluatedfrom the CFD study. The protruded plate is selected as the best plate configuration,based on the Thermal Performance Factor. An overall improvement of 33.5% is observedin the current research work, as compared to the smooth configuration. Hencepromising is the augmentation.
Links and sources
Need this topic turned into a technical roadmap?
Power for Solar can prepare a custom solar energy literature review, simulation code map, dataset map, and B2B photovoltaic technology assessment.
Request B2B research
Comments