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Journal of Applied Fluid Mechanics، جلد ۱۸، شماره ۹، صفحات ۲۴۳۴-۲۴۵۲
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Heat Transfer Optimization of Three Sections of Mini-channel with CuO Nanofluid |
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| چکیده انگلیسی مقاله |
Three-dimensional channel designs (rectangular, convergent, and converge-diverge) using distilled water and (CuO) nanofluids as a coolant have been compared numerically and experimentally. The flow rate of coolant, and concentration of volume, with Reynolds number (200≤Re≤1000) and volume fraction (0%≤φ≤7.5%) are applied. The heat flux was provided from below to simulate the operation of a real heat sink, while the rest of the outer surfaces were isolated to compare the optimum performance between three cross sectional areas. To prove the accurateness of the numerical results and the reliability of the program software, a comparison was made between the experimental and numerical outcomes. The wall temperature and average Nusselt number of pure water and nanofluid were chosen as comparison parameters since they represent global parameters. The comparison results showed good coincidence of wall temperature and Nusselt number results for both distilled and nanofluid. According to the results, raising the nano concentration can improve the heat sink's execution and the Nusselt number improved by 38.4% at a volumetric concentration of 7.5%, while the enhancement reaches 10% when varying the form of minichannel. In general, heat transfer is enhanced with increasing Reynolds number for all proposed shapes. In another context, the results of the performance evaluation criteria showed that the convergent channel has the highest value, followed by the convergent-divergent channel, compared to the rectangular channel. |
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| کلیدواژه‌های انگلیسی مقاله |
Convergent channel,Heat sink,Mini-channel,Nanofluid,Converge-diverge channel |
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| نویسندگان مقاله |
F. H. Ali |
College of Engineering-Mechanical Engineering Department -University of Babylon, Babylon, 51001, Iraq
Z. H. Saadoon |
College of Engineering-Mechanical Engineering Department -University of Babylon, Babylon, 51001, Iraq
Q. R. Al-amir |
Mechanical Power Engineering Department -College of Engineering and Technologies-Al-Mustaqbal University, Babylon, 51001, Iraq
H. K. Hamzah |
College of Engineering-Mechanical Engineering Department -University of Babylon, Babylon, 51001, Iraq
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| نشانی اینترنتی |
https://www.jafmonline.net/article_2720_3ebc9e47e1f8fa014378128dc0f790db.pdf |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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