Heat transfer characteristics of multiple jet impingements using graphene nanofluid for automobile industry application

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2024-10-01 DOI:10.1016/j.tsep.2024.102993

Praveen Barmavatu , Sonali Anant Deshmukh , Mihir Kumar Das , Ahmad Arabkoohsar , José Antonio García-Merino , Marco Rosales-Vera , Rolvin Sunil Dsilva , Mangalaraja Ramalinga Viswanathan , Baburao Gaddala , Vineet Singh Sikarwar

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引用次数: 0

Abstract

The framework experimentally investigates the application of graphene water Nano fluid nozzles for liquid jet cooling, particularly for internal combustion engine piston cooling. It also explores cooling effectiveness on flat and uneven surfaces (copper, steel, Inconel) with varying thicknesses. Turbulent liquid jets impinge on heated surfaces under constant heat flux using nozzles of different diameters to ensure fully developed flow. Graphene nanofluid concentrations of 0.1%, 0.15%, and 0.2% are compared to water. The impact is analysed for multiple jet arrangements, flow rates, and impingement distances on heat transfer using a combined experimental and numerical approach and findings reveal that higher jet Reynolds numbers, temperature rises, and smaller nozzle-to-plate distances enhance heat transfer. Nanofluid concentration significantly improves heat transfer compared to water, with a maximum increase of 50% at 0.2% concentration. These results inform the optimization of cooling strategies for automotive components, aiding engineers in designing efficient thermal management systems for heat-sensitive vehicle parts.

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石墨烯纳米流体在汽车行业应用中的多重喷射冲击传热特性

该框架通过实验研究了石墨烯水纳米流体喷嘴在液体喷射冷却中的应用，尤其是在内燃机活塞冷却中的应用。它还探索了不同厚度的平面和凹凸表面（铜、钢、铬镍铁合金）的冷却效果。湍流液体射流在恒定热通量下冲击受热表面，使用不同直径的喷嘴以确保充分发展的流动。将 0.1%、0.15% 和 0.2% 的石墨烯纳米流体浓度与水进行比较。研究结果表明，较高的喷射雷诺数、温度升高和较小的喷嘴到板的距离都能增强传热。与水相比，纳米流体的浓度能明显改善传热效果，浓度为 0.2% 时，传热效果最大可提高 50%。这些结果为优化汽车部件的冷却策略提供了参考，有助于工程师为热敏汽车部件设计高效的热管理系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.