Effect of number of mesh layers and fluid loading on the performance of screen mesh wicked heat pipes

Kempers, Roger; Ewing, D.; Ching, C.Y.

doi:10.1016/j.applthermaleng.2005.07.004

Cited by 88 publications

(32 citation statements)

References 14 publications

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“…A number of empirical, semi-empirical and analytical models have been developed for the effective thermal conductivity of saturated screen mesh wicks [4][5][6]. The predictions of these models, however, can vary by several orders of magnitude for the same wick-working fluid combination [9]. A number of investigations have shown that the heat transfer in the condenser section does appear to be conduction, and most models assume the same is true in the evaporator [1,[4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of evaporator and condenser thermal resistances of a screen mesh wicked heat pipe

Kempers

Robinson

Ewing

et al. 2008

International Journal of Heat and Mass Transfer

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Section: Introductionmentioning

confidence: 99%

Characterization of evaporator and condenser thermal resistances of a screen mesh wicked heat pipe

Kempers

Robinson

Ewing

et al. 2008

International Journal of Heat and Mass Transfer

Self Cite

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“…Furthermore, the porosity ratio of the sintered metal type must be increased, whereas the mesh number of the screen must be decreased or the layers of the mesh screen must be increased. This method enhances the capillary pumping of microstructures [12]. Lin et al [13] presented a novel groove microstructure.…”

Section: Open Accessmentioning

confidence: 99%

Design and Fabrication of a Novel Hybrid-Structure Heat Pipe for a Concentrator Photovoltaic

2012

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This study presents a design method to fabricate a novel hybrid-structure flat plate heat pipe (NHSP heat pipe) for a concentrator photovoltaic. The NHSP heat pipe is composed of a flattened copper pipe and a sintered wick structure, and a coronary-stent-like rhombic copper mesh supports the structure. The coronary-stent-like supporting structure enhances the mechanical strength and shortens the reflux path of the working fluid. Experiments demonstrate that the sintered capillary heat pipe reduces the thermal resistance by approximately 72%, compared to a traditional copper mesh-screen heat pipe. Furthermore, it can reduce thermal resistance by 65% after a supporting structure is added to the heat pipe. The results show that the NHSP heat pipe provided the best performance for the concentrator photovoltaic, which can increase photoelectric conversion efficiency by approximately 3.1%, compared to an aluminum substrate.

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“…Tang et al [6] and Lefèvre et al [7] have extensively studied the grooved wicks and mesh wicks. Kempers et al [8] studied the effect of number of mesh layers on heat pipe performance. They also characterized the evaporation and condensation thermal resistance of heat pipes with mesh wicks.…”

Section: Introductionmentioning

confidence: 99%

A New Approach for Thermo-Fluid Behavior through Porous Layer of Heat Pipes

Nouri-Borujerdi

2017

Scientia Iranica

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This paper developed a new mathematical model to investigate the heat transfer as well as wick thickness of a heat pipe. The model was set up by conservative equations of continuity, momentum and energy in the thermal boundary layer. Using the similarity variable, the governing equations have been changed to a set of ordinary differential equations and they were solved numerically by the forth order Runge-Kutta method. The flow variables such as velocity components, wick thickness and Nusselt number were obtained. The results show that the Nusselt number is proportional to the root square root of the Darcymodified Rayleigh number and that the distance from the edge of the condenser surface. Furthermore, the thickness of the wick material depends on the Jakob number and proportional to the heat transfer between the wall and the liquid film.

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Effect of number of mesh layers and fluid loading on the performance of screen mesh wicked heat pipes

Cited by 88 publications

References 14 publications

Characterization of evaporator and condenser thermal resistances of a screen mesh wicked heat pipe

Characterization of evaporator and condenser thermal resistances of a screen mesh wicked heat pipe

Design and Fabrication of a Novel Hybrid-Structure Heat Pipe for a Concentrator Photovoltaic

A New Approach for Thermo-Fluid Behavior through Porous Layer of Heat Pipes

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