Modeling of Thin Liquid Film in Grooved Heat Pipes

Bertossi, Rémi; Lataoui, Zied; Ayel, Vincent; Romestant, Cyril; Bertin, Yves

doi:10.1080/10407780903014228

Cited by 27 publications

(15 citation statements)

References 20 publications

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“…Using the preceding nondimensional parameters, the governing equation for the extended thin-film region is recast as four nonlinear differential equations, as given next [14,47] dδ dX δ 0 (30)…”

Section: F Solution Methodology and Boundary Conditionsmentioning

confidence: 99%

“…A shooting technique is adopted for guessing ε 1 until the desired radius of curvature R c is obtained. The preceding set of differential equations with their initial conditions are solved simultaneously with a fourth-order Runge-Kutta method, using the numerical algorithm outlined in [47].…”

Section: F Solution Methodology and Boundary Conditionsmentioning

confidence: 99%

“…In heat pipe and LHP literature, while analyzing at system scale, the relative merits of different working fluids are studied considering the capillary limit [39,[46][47][48]. A fluid that maximizes the ratio of the maximum allowable capillary pressure to the liquid pressure drop ϕ is preferred…”

Section: Extended Evaporating Thin-film Equationmentioning

confidence: 99%

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Effect of Heat Pipe Figure of Merit on an Evaporating Thin Film

Jasvanth

Ambirajan

Kumar

et al. 2013

Journal of Thermophysics and Heat Transfer

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The performance of a two-phase heat transport device such as the loop heat pipe is influenced by the evaporative heat transfer coefficient in the evaporator. From previous experiments with loop heat pipes, it has been observed that fluids with a high heat pipe figure of merit have a high heat transfer coefficient. Considering an evaporating extended thin film, this paper theoretically corroborates this experimental observation by deriving a direct link between the evaporative heat flux at the interface and the fluid figures of merit (namely interline heat flow parameter and heat pipe figure of merit) in the thin film. Numerical experiments with different working fluids clearly show that a fluid with high figure of merit also has a high cumulative heat transfer in the microregion encompassing the evaporating thin film. Thus, a loop heat pipe or heat pipe that uses a working fluid with a high interline heat flow parameter and heat pipe figure of merit will lead to a high evaporative heat transfer coefficient.

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Section: F Solution Methodology and Boundary Conditionsmentioning

confidence: 99%

Section: F Solution Methodology and Boundary Conditionsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Heat Pipe Figure of Merit on an Evaporating Thin Film

Jasvanth

Ambirajan

Kumar

et al. 2013

Journal of Thermophysics and Heat Transfer

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“…Xia et al [11] investigated capillary-assisted evaporation of an inclined micro-groove analytically. Bertossi et al [12] performed a parametric study on the evaporating meniscus in the evaporator of heat pipes. Zhao et al [13] showed that the nanofluid can greatly increase the thin film heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Comparison of different analytical models for heat and mass transfer characteristics of an evaporating meniscus in a micro-channel

Kou

Zeng

et al. 2015

International Communications in Heat and Mass Transfer

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“…Wang et al [15] obtained an analytical solution for the total heat transfer in evaporating thin film. Bertossi et al [16] performed a parametric study on the thin liquid film in the evaporator of the heat pipes. Recently, Maroo et al [17] found that a force function of the form F n = An − 3 − Cn − 2 can be applied at the boundaries of a liquid film to create curvature and form a meniscus.…”

Section: Introductionmentioning

confidence: 99%