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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a thermal model of lithium-titanate (LTO) cell and three cooling strategies comprising natural air cooling, forced fluid cooling, and a flat heat pipe-assisted method are proposed experimentally.
Abstract: Thermal management system (TMS) for commonly used lithium-ion (Li-ion) batteries is an essential requirement in electric vehicle operation due to the excessive heat generation of these batteries during fast charging/discharging. In the current study, a thermal model of lithium-titanate (LTO) cell and three cooling strategies comprising natural air cooling, forced fluid cooling, and a flat heat pipe-assisted method is proposed experimentally. A new thermal analysis of the single battery cell is conducted to identify the most critical zone of the cell in terms of heat generation. This analysis allowed us to maximize heat dissipation with only one heat pipe mounted on the vital region. For further evaluation of the proposed strategies, a computational fluid dynamic (CFD) model is built in COMSOL Multiphysics® and validated with surface temperature profile along the heat pipe and cell. For real applications, a numerical optimization computation is also conducted in the module level to investigate the cooling capacity of the liquid cooling system and liquid cooling system embedded heat pipe (LCHP). The results show that the single heat pipe provided up to 29.1% of the required cooling load in the 8C discharging rate. Moreover, in the module level, the liquid cooling system and LCHP show better performance compared with natural air cooling while reducing the module temperature by 29.9% and 32.6%, respectively.
94 citations
TL;DR: In this article, a review on the use of hybrid nanofluid in various heat transfer applications is presented, which summarizes the existing research works on the preparation and synthesis of various hybrid nanocomposites and hybrid nanoparticles.
94 citations
Patent•
21 Sep 1978
TL;DR: In this article, a heat pipe capillary wick constructed from a sintered metal cylinder formed in close contact with the inner diameter of the heat pipe casing, and containing longitudinal grooves on the wick's inner surface, adjacent to the vapor space, is described.
Abstract: A heat pipe capillary wick constructed from a sintered metal cylinder formed in close contact with the inner diameter of the heat pipe casing, and containing longitudinal grooves on the wick's inner surface, adjacent to the vapor space. The grooves provide longitudinal capillary pumping while the high capillary pressure of the sintered wick provides liquid to fill the grooves and assure effective circumferential distribution of liquid in the heat pipe.
94 citations
Patent•
18 Jun 2004TL;DR: In this article, a heat transfer mechanism for dissipating heat from a heat generating body to a heat dissipating part, realized both a high elasticity and a high thermal conductivity, comprised of a film-shaped heat conductor for transferring heat to the heat dissipation part and an elastic member for imparting elasticity to the film shape heat conductor, the heat conductor being formed from metal foil type flexible heat pipes or carbon-based thermal conductive sheets.
Abstract: A heat transfer mechanism for dissipating heat from a heat generating body to a heat dissipating part, realizing both a high elasticity and a high thermal conductivity, comprised of a film-shaped heat conductor for transferring heat to the heat dissipating part and an elastic member for imparting elasticity to the film-shaped heat conductor, the film-shaped heat conductor being formed from metal foil-type flexible heat pipes or carbon-based thermal conductive sheets.
94 citations
TL;DR: In this paper, a flat heat pipe with carbon nanotube nanofluid was used for cooling a heater working at high heat flux conditions up to 190 kW/m2.
Abstract: Experimental investigation on the thermal performance of a flat heat pipe working with carbon nanotube nanofluid is conducted. It is used for cooling a heater working at high heat flux conditions up to 190 kW/m2. The heat pipe is fabricated from aluminium and is equipped with rectangular fin for efficient cooling of condenser section. Inside the heat pipe, a screen mesh was inserted as a wick structure to facilitate the capillary action of working fluid. Influence of different operating parameters such as heat flux, mass concentration of carbon nanotubes and filling ratio of working fluid on thermal performance of heat pipe and its thermal resistance are investigated. Results showed that with an increase in heat flux, the heat transfer coefficient in evaporator section of the heat pipe increases. For filling ratio, however, there is an optimum value, which was 0.8 for the test heat pipe. In addition, CNT/water enhanced the heat transfer coefficient up to 40% over the deionized water. Carbon nanotubes intensified the thermal performance of wick structure by creating a fouling layer on screen mesh structure, which changes the contact angle of liquid with the surface, intensifying the capillary forces.
94 citations