Analytical study of the flow and heat transfer in a rotating heat pipe

Li, H.M.; Liu, C.Y.; Damodaran, M.

doi:10.1016/0890-4332(93)90030-y

Cited by 15 publications

(12 citation statements)

References 3 publications

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“…Previous studies have also shown that, as with the results in Fig. 3.4, using the average radius of the tapered condenser section as opposed to the local radius will over-predict the liquid layer thickness in the tapered condenser section (Li et al 1993). …”

Section: Validationsupporting

confidence: 51%

“…These were trends that could not be explained using models that did not include these modifications (Li et al 1993).…”

Section: High Speed Rotating Heat Pipesmentioning

confidence: 98%

“…The film condensation analysis has also been used to calculate the film thickness in the adiabatic and evaporator sections of axially rotating heat pipes (Li et al 1993;Song et al 2003). These studies found that accurate predictions of the overall thermal resistance could only be made if the model determined how the liquid charge, under the influence of the centrifugal forces, is redistributed in the heat pipe.…”

Section: 1modeling Of Stationary Heat Pipesmentioning

confidence: 99%

“…The liquid flow model developed here is based closely on the work of Song et al (Song et al 2003), however, whereas the convective terms and the Coriolis forces are ignored in previous investigations of the liquid flow in axially rotating heat pipes, these terms are retained throughout the formulation here. Furthermore, while previous models of rotating heat pipes (Daniels and Al-Jumaily 1975;Li et al 1993;Song et al 2003) have ignored temperature and pressure variations in the vapor phase, the present investigation couples the liquid flow to a one-dimensional vapor flow model. The inclusion of these terms represents an extension of the previous models.…”

Section: Rotating Heat Pipe Modelmentioning

confidence: 99%

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Numerical and Experimental Investigations of a Rotating Heat Pipe

Jankowski

2007

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Section: Validationsupporting

confidence: 51%

“…These were trends that could not be explained using models that did not include these modifications (Li et al 1993).…”

Section: High Speed Rotating Heat Pipesmentioning

confidence: 98%

Section: 1modeling Of Stationary Heat Pipesmentioning

confidence: 99%

Section: Rotating Heat Pipe Modelmentioning

confidence: 99%

See 2 more Smart Citations

Numerical and Experimental Investigations of a Rotating Heat Pipe

Jankowski

2007

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“…For example, Daniels and Al-Jumaily [18] and Uddina et al [19] ignored the inertia term of the liquid phase and obtained its temperature distribution by the zero dimension model. Song et al [17], Bertossi et al [1], and Hassan and Harmand [2,20] considered the liquid phase as a one-dimensional flow; Li et al [21] treated it as a two-dimensional flow. However, to discuss the performance of the heat pipe clearly under different working conditions, the effect of the vapor phase should be taken into full consideration.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Estimate of Coriolis Force of Vapor Flow in Rotating Heat Pipes Based on Analytical Solution

Wang

2018

International Journal of Photoenergy

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In current theory models for rotating heat pipes, the temperature field of the vapor phase is often supposed to be homogenous, and as a result of such simplification, the experiment result of the heat transfer performance for high rotating speed has some discrepancy with that predicted by theory models. In this paper, the analytical solution of the vapor flow in rotating heat pipes was obtained on the hypothesis of potential flow and with the method of variable separation. A specific rotating heat pipe was examined under three kinds of boundary conditions: linear distribution, uniform but asymmetric distribution, and uniform as well as symmetric distribution of heat load. The flow field was calculated, the Coriolis force is estimated, and it is found that (1) for a rotating heat pipe with high speed or large heat load, it is necessary to consider the Coriolis force, as its magnitude can be that of the gravitational acceleration; (2) the maximum Coriolis force is located at the vapor-liquid interface at the evaporator and condenser sections, and the directions in these two sections are opposite; (3) the Coriolis force is closely related with working conditions and working fluids, and it decreased with working temperature and increased with the heat load; and (4) the maximum viscous shear stress is located at the adiabatic section.

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Effect of using nanofluids on the performance of rotating heat pipe

Hassan

Harmand

2015

Applied Mathematical Modelling

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Analytical study of the flow and heat transfer in a rotating heat pipe

Cited by 15 publications

References 3 publications

Numerical and Experimental Investigations of a Rotating Heat Pipe

Numerical and Experimental Investigations of a Rotating Heat Pipe

Preliminary Estimate of Coriolis Force of Vapor Flow in Rotating Heat Pipes Based on Analytical Solution

Effect of using nanofluids on the performance of rotating heat pipe

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