Patent
Corrugated heat pipe
TLDR
In this article, a corrugated heat pipe sealed at both ends with a rope-like tension member is disclosed, having a longitudinally corrugation peripheral wall and containing operating liquid therein.Abstract:
A corrugated heat pipe sealed at both ends is disclosed, having a longitudinally corrugated peripheral wall and containing operating liquid therein. The corrugated heat pipe comprises inside a rope-like tension member extending therethrough in its longitudinal direction and secured at both ends. The rope-like tension member has the effect of preventing the corrugated heat pipe from elongation due to the weight thereof when the pipe is inserted in the ground, thus eliminating the possibility of local flattening of the corrugated outer periphery or of breakage of the pipe. Further, even when the coefficient of thermal expansion of the rope-like tension member differs from that of the corrugated heat pipe, since the corrugated heat pipe has its outer periphery corrugated in a wavy form in the longitudinal direction, it can sufficiently absorb the thermal expansion of the rope-like tension member. Thus, the corrugated heat pipe will not be broken, even when the coefficient of thermal expansion of the corrugated heat pipe differs from that of the rope-like tension member.read more
Citations
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Journal ArticleDOI
Numerical study of horizontal ground heat exchangers for design optimization
TL;DR: In this paper, the authors examined ways to optimize the designs for horizontal ground heat exchangers by using different layouts and pipe materials and found that slinky heat exchanger prolongs heat transfer process when compared against straight configuration.
Patent
Ground source heat pump system comprising modular subterranean heat exchange units with concentric conduits
TL;DR: In this article, an improved ground source heat pump system was proposed, wherein the underground piping installation is constructed of a plurality of modular heat exchange units. But, the insulation around the internal tube prevents thermal interference between the internal and external tubes and further enhances the heat exchange capacity of the system.
Patent
CTE-matched heat pipe
TL;DR: In this article, heat pipes having layered composite or integral composite low coefficient of expansion heat sinks are disclosed that can be mounted directly to silicon semiconductor devices. But they do not have a mounting surface with a coefficient of thermal expansion matching that of silicon.
Patent
Heat source or heat sink unit with thermal ground coupling
Kevin Guynn,Klemens Waterkotte +1 more
TL;DR: In this article, a heat source or a heat sink unit with thermal ground coupling, comprising at least one ground probe arranged in the earth, whereby each earth probe is a probe tube made from several pile tube segments.
Patent
Three dimensional vapor chamber
TL;DR: In this article, a three dimensional vapor chamber is disclosed, which has a horizontal vapor chamber portion and a vertical flat heat pipe portion, and the interiors of the two portions are in fluid communication and can have a wick material saturated with a working fluid such as water.
References
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Patent
Heat pipe thermal switch
TL;DR: In this article, a flexible bellows is used to control the dissipation of heat between a body and a heat source, acting as heat source and heat sink, in an evaporation and condensation chamber.
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Patent
Heat pipe assembly
John H. Anderson,Elmer D. Waters +1 more
TL;DR: A separable heat pipe assembly for stabilizing the generally frozen soil adjacent and supporting a structural member or foundation in permafrost or similar regions, including a cooperative combination of a tubular structure installed in a permarost environment, a heat pipe element having its lower portion installed in the structure and positioned at least in proximity longitudinally to the wall of the structure, and soil or other substance filling the space remaining between the lower element portion and the structure wall.