Topic
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.
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TL;DR: In this article, a detailed mathematical model was developed that describes heat transfer through this liquid films in the evaporator of heat pipes with capillary grooves, which accounts for the effects of interfacial thermal resistance, disjoining pressure, and surface roughness for a given meniscus contact angle.
Abstract: A detailed mathematical model is developed that describes heat transfer through this liquid films in the evaporator of heat pipes with capillary grooves. The model accounts for the effects of interfacial thermal resistance, disjoining pressure, and surface roughness for a given meniscus contact angle. The free surface temperature of the liquid film is determined using the extended Kelvin equation and the expression for interfacial resistance given by the kinetic theory. The numerical results obtained are compared to existing experimental data. The importance of the surface roughness and interfacial thermal resistance in predicting the heat transfer coefficient in the grooved evaporator is demonstrated. 17 refs., 5 figs., 2 tabs.
112 citations
TL;DR: In this paper, the thermal conductivity of phase change materials (PCMs) is usually low which impedes the heat transfer efficiency in the LHTES system, adding high thermal conductivities nanoparticles or metal foams are the two common approaches to enhance the thermal performance of the PCMs.
112 citations
01 Apr 1972
TL;DR: In this article, a comprehensive review and analysis of all aspects of heat pipe technology pertinent to the design of self-controlled, variable conductance devices for spacecraft thermal control is presented.
Abstract: A comprehensive review and analysis of all aspects of heat pipe technology pertinent to the design of self-controlled, variable conductance devices for spacecraft thermal control is presented. Subjects considered include hydrostatics, hydrodynamics, heat transfer into and out of the pipe, fluid selection, materials compatibility and variable conductance control techniques. The report includes a selected bibliography of pertinent literature, analytical formulations of various models and theories describing variable conductance heat pipe behavior, and the results of numerous experiments on the steady state and transient performance of gas controlled variable conductance heat pipes. Also included is a discussion of VCHP design techniques.
111 citations
Patent•
28 Apr 2006
TL;DR: In this paper, a heat dissipating structure is used to dissipate the heat generated by the LED and comprises a first heat-dissipating body and a second heat-dispating body.
Abstract: The present invention is directed to a LED lamp and the heat-dissipating structure thereof. The heat-dissipating structure is used to dissipate the heat generated by the LED and comprises a first heat-dissipating body and a second heat-dissipating body. The first heat-dissipating body has a casing with an opening formed thereon. The second heat-dissipating body is connected on the first heat-dissipating body and comprises at least one heat pipe and a plurality of heat-dissipating fins connected to the heat pipe. With this arrangement, the LED continuously operates under a suitable working temperature and the life of the LED can thus be prolonged.
111 citations
TL;DR: In this article, the authors overview the previous research on various GHE parametrized Ali Amiriers to improve the efficiency and their effect on factors such as heat exchanger type, heat exchange rate, outlet temperature, pressure loss, thermal resistance, thermal interference, thermal conductivity, soil temperature, thermo-economic and etc.
111 citations