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Heat pipe

About: Heat pipe is a research topic. Over the lifetime, 30354 publications have been published within this topic receiving 243669 citations. The topic is also known as: heatpipe & heat-pipe.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a model for the radial heat transfer of a grooved heat pipe evaporator is presented, which combines the solution of a two-dimensional heat conduction problem with the calculation of the shape of the liquid-vapour interface and its temperature, taking into account the influence of meniscus curvature and adhesion forces on the volatility of liquid.

444 citations

Journal ArticleDOI
TL;DR: In this paper, a steady state analysis of the heat and mass transfer in porous media saturated with the liquid and vapor phases of a single component fluid was conducted, and the effects of capillarity, gravity forces, and phase change were included.

427 citations

Journal ArticleDOI
TL;DR: In this paper, a review of heat pipe developments in the former Soviet Union countries is presented, and some new results obtained in USA and Europe are also included in the review. But none of the results are available for the former USSR.

410 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a review on various techniques of heat transfer enhancement in latent heat thermal energy storage (LHTES) systems, which can be achieved through either geometric configuration and/or thermal conductivity enhancement.
Abstract: This paper presents a state-of-the-art review on various techniques of heat transfer enhancement in latent heat thermal energy storage (LHTES) systems. Heat transfer enhancement in LHTES systems can be achieved through either geometric configuration and/or thermal conductivity enhancement. The use of extended surfaces such as fins or heat pipes is a common technique for heat transfer enhancement in LHTES systems and therefore, reviewed in details in this paper. Next, we studied the thermal conductivity enhancement techniques, which include the use of porous materials, nanoparticles with high thermal conductivity, and low-density materials. Finally, studies involving combined techniques for heat transfer enhancement are reviewed in the paper. The paper discusses research gaps in the methods of heat transfer enhancement for LHTES systems and proposed some recommendations.

403 citations

Proceedings ArticleDOI
12 Jul 1999
TL;DR: The loop heat pipe (LHP) is a two-phase heat transfer device that utilizes the evaporation and condensation of a working fluid to transfer heat, and the capillary forces developed in fine porous wicks to circulate the fluid.
Abstract: The loop heat pipe (LHP) was invented in Russia in the early 1980’s. It is a two-phase heat transfer device that utilizes the evaporation and condensation of a working fluid to transfer heat, and the capillary forces developed in fine porous wicks to circulate the fluid. The LHP is known for its high pumping capability and robust operation because it uses finepored metal wicks and the integral evaporator/hydroaccumulator design. It has gained rapid acceptance in recent years as a thermal control device in space applications. This paper presents an overview of the LHP operation. The physical processes and the thermal-hydraulic behaviors of the LHP are first described. Operating characteristics as functions of various parameters including the heat load, sink temperature, ambient temperature, and elevation are presented. Peculiar behaviors in LHP operation such as temperature hysteresis and temperature overshoot during start-up are explained. Issues related to multiple -evaporator LHP’s are also addressed.

399 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023343
2022511
2021619
2020986
20191,301
20181,498