Study of heat dissipation characteristics of loop heat pipe with heat sink of composite material

Han, Chuan; He, Lidan; Tian, Zhizheng; Xu, Bo; Chen, Zhenqian

doi:10.1016/j.applthermaleng.2021.117572

Cited by 18 publications

(5 citation statements)

References 41 publications

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“…There are many advantages to heat pipes, including their flexibility, simplicity, long working life, and maintenance-free. Several industrial applications have benefited from these heat pipe techniques, including renewable energy, waste heat recovery, heat exchangers, electronics, space missions, , electric vehicles, and buildings . As a result, many different types of heat pipes have been developed to meet the needs of different application occasions, including thermosyphons, separate heat pipes, pulsating heat pipes, loop heat pipes, etc.…”

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

“…However, the pressure drop also increased obviously in this case. Han et al found that the higher condenser inlet temperature of 30 °C would lead to a higher hot spot temperature as a result of a lower heat dissipation capacity.…”

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

“…The characteristics of phase change processes are introduced in this section as follows. Thermal management with the phase change has superior performance compared to conventional single-phase processes. , This is primarily because the latent heat of fluid is significantly larger than the sensitive heat, enabling an almost uniform temperature during the absorption and release of latent heat. As a result, the phase change presents promising opportunities for temperature regulation in exothermal reactions, unclear reactors, electronics, vehicle batteries, solar collectors, buildings, and space missions Moisture in wet materials, such as biomass, coal, food, and pharmaceuticals, can hinder the thermochemical conversion reaction or accelerate spoilage.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science and engineering perspectives, gaining a profound understanding of the intricacies of multiphase flow processes accompanied by heat and mass transfer due to phase change is of fundamental importance. Indeed, the computational fluid dynamics (CFD) has been increasingly applied as an effective tool to give an in-depth and efficient analysis of the phase change processes, thereby enhancing our understanding and capacity to control and optimize the phase change effects in these processes. This paper seeks to provide a comprehensive review of the utilization of CFD methodologies in the simulations of phase change flows across various applications, including temperature management, drying, separation and purification, and others. First, the CFD models at various scales that are developed to elucidate the phase change processes are summarized. Second, the noteworthy advances in the recent CFD simulation work on various phase change processes are presented, respectively. Finally, the challenges and potential prospects to facilitate the application of the phase change flow are discussed. The current review aims to offer insightful guidance for the CFD modeling of phase change processes in numerous engineering application scenarios.

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Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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“…As the viscosity increases, it is necessary to consider the additional resistance that the fluid exerts on the shear rate. However, common refrigerants on the market, such as R22, R404A, R407C, R410A, and R134A, are low viscosity fluids with low resistance [16][17][18][19][20]. Therefore, a centrifugal pump that can continuously provide a large flow rate and a constant flow rate with good efficiency should be selected, and a vertical multi-stage pump has the characteristics of high efficiency, low noise, beautiful appearance, small volume, light weight, convenient maintenance, and reliable sealing performance.…”

Section: Selection Of Centrifugal Pumpsmentioning

confidence: 99%

Experimental Study of a Pump-Driven Microchannel-Separated Heat Pipe System

Chen,

Xu,

Shi

et al. 2023

Sustainability

Self Cite

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The current situation of high energy consumption in data centers places high demands on the energy consumption and heat-dissipation efficiency of cooling technology. This article studies the steady-state flow and heat-transfer characteristics of a pump-driven separated heat pipe system from an experimental perspective. After designing and selecting the pump-driven microchannel-separated heat pipe system, an experimental platform is built to test the pump-driven microchannel-separated heat pipe system under variable operating conditions. It is found that the optimal filling rate range of the system is 75% to 95%, and the optimal condensing air volume is 4250 m3/h. The relationship between the circulating mass flow rate and the heat-transfer capacity of the heat pipe system is comprehensively influenced by the resistance of each section and the heat-transfer coefficient at the heat exchanger. When the indoor and outdoor temperature difference increases from 10 °C to 30 °C, the heat transfer increases by 261.5%, and the working medium of R410a has a better heat-transfer performance than R134A at outdoor temperatures ranging from 0 to 15 °C. The results contribute to the application of pump-assisted microchannel heat pipe systems in data center machines, which provide guidance for the application of cabinet-level thermal management.

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“…[1][2][3][4][5][6][7] Simultaneously, the advent of products such as artificial intelligence, self-driving cars, and 5G and 6G smartphones has led to a substantial increase in the power density of semiconductor chips, posing a significant challenge in terms of heat dissipation. [8][9][10][11][12] Traditional thermal management materials are proving inadequate to address the pressing thermal management issues posed by today's space-constrained and power-dense electronic devices. Consequently, there is an urgent demand for advanced technologies to develop high-performance thermal management materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Highly Thermally Conductive Hexagonal Boron Nitride‐Polyvinyl Alcohol/Polydimethylsiloxane Composite Using Combined Freeze‐Drying and Spatial Confining Forced Network Assembly Method

Li,

Qiu,

et al. 2024

Adv Eng Mater

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With the rapid advancement of electronic products, an increasing number of electronic components are being integrated onto chips, leading to a higher power consumption per unit area. Consequently, effective heat dissipation has become increasingly important. To address this heat dissipation challenge, this paper introduces and prepares a highly thermally conductive polymer composite (TCPC) based on freeze‐drying, coupled with the Spatial Confining Forced Network Assembly（SCFNA） method. The freeze‐drying process is used to create a three‐dimensional thermal conductive network. This network provides a well‐defined heat path. The SCFNA method enhances the regularity of the thermal conductive network within the matrix. Ultimately, This results in the significant thermal conductivity enhancement of the polymer composite. After freeze‐drying, when the mass ratio of hexagonal boron nitride (h‐BN) to polyvinyl alcohol (PVA) is 4:1, the sample prepared by SCFNA presents 72.6% higher thermal conductivity than the one obtained through direct infiltration. This achievement holds significant value for the advancement of polymer composites with high thermal conductivity and excellent mechanical properties. It can improve the low dissipation performance of polymer thermal conductive composite systems, meet the needs of high‐performance and low‐dissipation use of thermal management materials, and reduce the working temperature of electronic chips.This article is protected by copyright. All rights reserved.

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Study of heat dissipation characteristics of loop heat pipe with heat sink of composite material

Cited by 18 publications

References 41 publications

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Experimental Study of a Pump-Driven Microchannel-Separated Heat Pipe System

Preparation of Highly Thermally Conductive Hexagonal Boron Nitride‐Polyvinyl Alcohol/Polydimethylsiloxane Composite Using Combined Freeze‐Drying and Spatial Confining Forced Network Assembly Method

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