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An Experimental and Numerical Thermal Flow Analysis in a Solar Air Collector with Different Delta Wing Height Ratios

Ghobad Shafiei Sabet1,*, Ali Sari1, Ahmad Fakhari2,*, Nasrin Afsarimanesh3, Dominic Organ4, Seyed Mehran Hoseini1

1 Department of Mechanical Engineering Shahrood Branch, lslamic Azad University, Shahrood, Iran
2 Airflow Sciences Corporation, Livonia, MI, USA
3 School of Civil and Mechanical Engineering, Curtin University, Bentley, Australia
4 Department of English as an Additional Language (EAL), Heriot-Watt University, Galashiels, Scotland

* Corresponding Authors: Ghobad Shafiei Sabet. Email: email; Ahmad Fakhari. Email: email

(This article belongs to the Special Issue: Heat and Mass Transfer in Thermal Energy Storage)

Frontiers in Heat and Mass Transfer 2024, 22(2), 491-509. https://doi.org/10.32604/fhmt.2024.048290

Abstract

This study conducts both numerical and empirical assessments of thermal transfer and fluid flow characteristics in a Solar Air Collector (SAC) using a Delta Wing Vortex Generator (DWVG), and the effects of different height ratios (R = 0.6, 0.8, 1, 1.2 and 1.4) in delta wing vortex generators, which were not considered in the earlier studies, are investigated. Energy and exergy analyses are performed to gain maximum efficiency. The Reynolds number based on the outlet velocity and hydraulic diameter falls between 4400 and 22000, corresponding to the volume flow rate of 5.21–26.07 m/h. It is observed that the delta wing vortex generators with a higher height ratio yield maximum heat transfer enhancement and overall enhancement ratio. The empirical and numerical findings demonstrate that the exergy and thermal efficiencies decline in a specific range. The Nusselt number, pressure drop, energy, and exergy efficiencies enhance with rising Reynolds number, although the friction coefficient diminishes. The maximum heat transfer enhancement is 57%. According to the evaluation of exergy efficiency, the greatest efficiency of 31.2% is obtained at R = 1.4 and Reynolds number 22000.

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APA Style
Sabet, G.S., Sari, A., Fakhari, A., Afsarimanesh, N., Organ, D. et al. (2024). An experimental and numerical thermal flow analysis in a solar air collector with different delta wing height ratios. Frontiers in Heat and Mass Transfer, 22(2), 491-509. https://doi.org/10.32604/fhmt.2024.048290
Vancouver Style
Sabet GS, Sari A, Fakhari A, Afsarimanesh N, Organ D, Hoseini SM. An experimental and numerical thermal flow analysis in a solar air collector with different delta wing height ratios. Front Heat Mass Transf. 2024;22(2):491-509 https://doi.org/10.32604/fhmt.2024.048290
IEEE Style
G.S. Sabet, A. Sari, A. Fakhari, N. Afsarimanesh, D. Organ, and S.M. Hoseini "An Experimental and Numerical Thermal Flow Analysis in a Solar Air Collector with Different Delta Wing Height Ratios," Front. Heat Mass Transf., vol. 22, no. 2, pp. 491-509. 2024. https://doi.org/10.32604/fhmt.2024.048290



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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