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Design and Performance Evaluation of a Multi-Stepped Absorber Plate Fin in a Flat Plate Solar Collector | ||
| Journal of Heat and Mass Transfer Research | ||
| دوره 13، شماره 3 - شماره پیاپی 27، آذر 2026، صفحه 273-284 اصل مقاله (745.15 K) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2025.36908.1682 | ||
| نویسندگان | ||
| Gulshan Baharuddin Ahmed1؛ Md Naim Hossain2؛ Arijit Kundu2؛ Ashwani Kumar* 3 | ||
| 1Durgapur Institute of Advanced Technology and Management Durgapur, West Bengal 713212, India | ||
| 2Department of Mechanical Engineering, Jalpaiguri Government Engineering College West Bengal 735102, India | ||
| 3Department of Mechanical Engineering, Technical Education Department Uttar Pradesh Kanpur 202480 India & Department of Mechanical Engineering, Graphic Era Deemed to be University Dehradun 248002 India | ||
| تاریخ دریافت: 27 بهمن 1403، تاریخ بازنگری: 06 تیر 1404، تاریخ پذیرش: 21 تیر 1404 | ||
| چکیده | ||
| This research investigates the thermal performance and optimization of a new absorber plate fin design with a double step change in thickness (rectangular profile with double step changes in local thickness, RPDSLT). It compares the thermal performance of RPDSLT to fins with simpler geometries (rectangular, trapezoidal, and rectangular with a single step change) across a wide range of geometrical parameters. The main objective of researchers in this field is to determine the maximum fin efficiency with minimal fin material usage. Therefore, the focus is on understanding the impact of the additional step change in RPDSLT on heat transfer efficiency and examining whether the fin efficiency is enhanced or not. The study aims to identify the optimal values of the geometrical parameters (plate fin thickness ratios and dimensionless step lengths) that maximize efficiency. The absorber plate fin thickness plays a crucial role in solar collector efficiency. The research explores how the double step change in RPDSLT thickness affects collector efficiency compared to simpler fin designs. Detailed schematics of each fin profile and a solar collector demonstration are presented. The result show that the RPDSLT fin exhibits a maximum fin efficiency roughly 5% greater than the rectangular profile with step changes in local thickness (RPSLT) fin when their geometries is optimized. Compared to rectangular and trapezoidal fins, the RPDSLT offers a smaller efficiency improvement of 1-2%. Nevertheless, the superior thermal performance of the RPDSLT design could make it a preferred choice for flat plate solar collectors despite its more intricate fabrication. The study indicates that optimal efficiency is achieved with the minimum tested step-length ratios of 0.1 and the maximum tested thickness ratios of 0.9. Therefore, for efficient material utilization in the plate fin, it is recommended to use minimal step-length ratios and maximal thickness ratios. | ||
| کلیدواژهها | ||
| Performance optimization؛ Solar collector؛ Fin efficiency؛ RPDSLT؛ Renewable thermal energy systems | ||
| مراجع | ||
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Journal of Heat and Mass Transfer Research, 10(2), pp. 257-268. | ||
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