Case Studies in Thermal EngineeringGravity heat pipe (GHP) is a critical heat transfer device for enhancing heat transfer efficiency in many fields. The heat transfer performance of GHP is significantly influenced by its pipe configuration. The present study aims at elucidating the impact
Xing Lu +5 more
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Experimental Study on the Thermal Start-Up Performance of the Graphene/Water Nanofluid-Enhanced Solar Gravity Heat Pipe [PDF]
Nanomaterials, 2018 The solar gravity heat pipe has been widely used for solar thermal water heating because of its high efficient heat transfer and thermal diode characteristics.
Shanguo Zhao +3 more
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Working fluid flow visualization in gravity heat pipe [PDF]
EPJ Web of Conferences, 2016 Heat pipe is device working with phase changes of working fluid inside hermetically closed pipe at specific pressure. The phase changes of working fluid from fluid to vapour and vice versa help heat pipe to transport high heat flux.
Nemec Patrik, Malcho Milan
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Non-Uniform Three-Dimensional Pulsating Heat Pipe for Anti-Gravity High-Flux Applications
Energies, 2020 This study proposes a novel high-flux pulsating heat pipe that can lift the major constraint of the conventional pulsating heat pipe (PHP) which is unable to function properly upon anti-gravity operations. The proposed PHP introduces additional unbalance
Chih-Yung Tseng +2 more
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Heat transfer enhancement by diamond nanofluid in gravity heat pipe for waste heat recovery
Functional Diamond, 2022 Waste heat recovery is significant for improving energy utilization, reducing carbon emissions, and neutrality. The gravity heat pipe (GHP) has excellent thermal performance due to the cyclic phase transformation of the working fluid.
Ning Qian +5 more
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Study on the effect of gravity heat pipe arrangement onhigh temperature point of coal pile
Gong-kuang zidonghua, 2021 The existing researches have concluded that the number of gravity heat pipes, insertion depth and angle, filling rate, working fluid will affect the distribution of the internal temperature field of coal pile.
YIN Pengcheng1 +6 more
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Optimization of heat extraction performance of gravity heat pipe under multiple working conditions
Meikuang Anquan, 2022 The orthogonal experiment method was used to investigate the heat transfer performance of the gravity heat pipe under the influence of multiple factors such as types of working fluid, filling rate, and the aspect ratio.
MA Xin +5 more
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Research on Performance Optimization of Gravity Heat Pipe for Mine Return Air
Energies, 2022 The mine return air flow has the characteristics of basically constant temperature and humidity all year round and is a high-quality waste heat resource. Its direct discharge not only wastes energy but also causes environment pollution.
Yu Zhai, Xu Zhao, Zhifeng Dong
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Thermal Performances Investigation of Anti-Gravity Heat Pipe with Tapering Phase-Change Chamber
Energies, 2020 The objective of this study was to fabricate anti-gravity heat pipes with a tapering column phase-change chamber and changeable cross-sectional wick structure.
Jianhua Xiang +5 more
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Design solutions for gravity-independent heat pipes
Doklady of the National Academy of Sciences of Belarus, 2021 Heat pipes with mesh wicks were designed (working liquid – water, envelope – copper tube). Wicks from the mesh of various weaves (plain, twill, leno and looped) with improved hydrophilic properties and secondary capillary structure were developed. Heat pipes are gravity-independent, adapted to work in various conditions of orientation and localization,
O. L. Voitik +2 more
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