吴俊杰, 马丽, 侯竣升, 李栋宇, 郝南京. 复合纳米流体强化换热研究进展[J]. 工程科学学报. DOI: 10.13374/j.issn2095-9389.2023.08.31.001
引用本文: 吴俊杰, 马丽, 侯竣升, 李栋宇, 郝南京. 复合纳米流体强化换热研究进展[J]. 工程科学学报. DOI: 10.13374/j.issn2095-9389.2023.08.31.001
WU Junjie, MA Li, HOU Junsheng, LI Dongyu, HAO Nanjing. Research progress on hybrid nanofluids for heat transfer process intensification[J]. Chinese Journal of Engineering. DOI: 10.13374/j.issn2095-9389.2023.08.31.001
Citation: WU Junjie, MA Li, HOU Junsheng, LI Dongyu, HAO Nanjing. Research progress on hybrid nanofluids for heat transfer process intensification[J]. Chinese Journal of Engineering. DOI: 10.13374/j.issn2095-9389.2023.08.31.001

复合纳米流体强化换热研究进展

Research progress on hybrid nanofluids for heat transfer process intensification

  • 摘要: 随着科学技术的进步,电子器件、太阳能和机械加工等系统均趋向于高功率和微型化发展. 然而,这些系统内部产生的热量也随之增加,导致系统过热甚至烧毁,因此,亟需发展高效热管理系统,以及时带走系统热量. 近年来,多种新型热管理技术被广泛研究和应用,其中,复合纳米流体强化换热技术因具有效果显著、成本低廉和无额外能耗等优势而备受关注,成为研究和应用的热点之一. 本文对复合纳米流体强化换热技术的研究进展进行全面综述. 首先总结了近年来复合纳米流体制备的研究现状,然后分析了复合纳米流体的一般性能、传热性能及相关影响因素,着重讨论了复合纳米流体强化换热机制. 此外,还介绍了复合纳米流体在微电子、太阳能装置及散热器等领域的应用. 最后,讨论了复合纳米流体强化换热技术目前面临的挑战,并提出了未来的发展方向.

     

    Abstract: Owing to the rapid progress of science and technology, microelectronic devices characterized by high integration and exceptional performance have assumed crucial roles in various industrial fields such as aeronautics, astronautics, energy, medicine, and automobiles. As these devices constantly evolve, the issue of effective thermal management becomes increasingly of utmost importance, specifically in the case of high heat flux. Traditional cooling methods, such as air and liquid cooling, show notable disadvantages. They not only consume significant power but also present lower heat dissipation efficiency. These limitations considerably threaten the stability and reliability of microelectronic devices. Recently, numerous approaches to enhancing heat transfer have been proposed, encompassing both passive strategies, such as nanofluids, surface roughness, and heating element structures, and active techniques involving acoustic, electric, and magnetic fields. Among these approaches, the use of nanofluids stands out due to their inherent advantages, including cost-effectiveness, flexibility, and versatile applications. Aiming to address the low thermal conductivity of basic working fluids such as water, ethylene glycol, and mineral oil, researchers have developed a series of particulate forms including but not limited to silica dioxide (SiO2), aluminum oxide (Al2O3), titanium dioxide (TiO2), carbon nanotubes, copper (Cu), silver (Ag), silicon carbide (SiC), nanodiamond, zinc oxide (ZnO), magnesium oxide (MgO), and cupric oxide (CuO). These materials have led to nanofluids, which can be classified into mono nanofluids and hybrid nanofluids based on the particle composition. Hybrid nanofluids include at least two nanoparticle types. The unique advantages stemming from their mechanical and chemical stability, diverse structural configurations, and varied preparation techniques have significantly fascinated researchers. Currently, hybrid nanofluids present outstanding intensification performance across both single-phase and two-phase heat transfer processes. Some of them have superior performance to their mononanofluids due to the collaborative interplay of diverse nanoparticles. These characteristics enable hybrid nanofluids as promising candidates for diverse technological areas such as national defense, air-conditioner systems, semiconductors, mechanical manufacturing and materials. Combining hybrid nanofluids with heat transfer methodologies has also garnered considerable attention and is gradually evolving into a crucial direction for heat transfer improvement. In this study, we present a comprehensive overview of the research progress on enhancing the heat transfer process with hybrid nanofluids. First, the preparation techniques for hybrid nanofluids encompass both one-step and two-step methodologies, with a focus on emerging innovative approaches. Furthermore, the physical and chemical characteristics (including but not limited to stability, viscosity, and thermal performance) are reviewed. A detailed discussion of the principle of thermal enhancement is presented. Moreover, this review summarizes the applications of hybrid nanofluids in effectively managing heat within microelectronic devices, solar energy, and heat exchangers. Finally, we outline some challenges in this field and further directions for the advancements of hybrid nanofluids.

     

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