Loop Heat Pipe Testing and Analytical Model Verification at the U.S. Naval Research Laboratory

Hoang, Triem T.; Cheung, Kwok; Baldauff, Robert W.

doi:10.4271/2004-01-2552

Cited by 8 publications

(2 citation statements)

References 6 publications

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“…The mass flow rate within the wick structure is considered to be constant owing to the mass conservation law, given by [4,16]…”

Section: The Model Applicable To the Proposed Galhpmentioning

confidence: 99%

“…Pauken and Rodriguez [15] modelled and tested a LHP with two different working fluids, that is, ammonia and propylene. Hoang et al [16] mentioned that the heat transfer characteristic of a LHP was difficult to predict, owing to the complicated nature of the thermal interaction between the LHP and environment. Riehl [17] tested a LHP system operating with acetone as the working fluid.…”

Section: Introductionmentioning

confidence: 99%

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Study of a Novel Liquid-Vapour Separator-Incorporated Gravitational Loop Heat Pipe

Zhao¹,

Weng²,

Zhang³

et al. 2019

Recent Advances in Heat Pipes [Working Title]

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The aim of this chapter is to report the study of a novel liquid-vapour separatorincorporated gravity-assisted loop heat pipe (GALHP). This involves a dedicated conceptual formation, thermo-fluid analyses, and computer modelling and experimental validation. The innovative feature of the new GALHP is the integration of a dedicated liquid vapour separator on top of the evaporator section, eliminating the potential entrainment between the heat pipe liquid and the steam stream, while addressing the inherent 'dry-out' problem exhibited in the traditional GALHP. Based on this recognised novelty, a dedicated steady-state thermal model covering the mass continuity, energy conservation and Darcy equations were established. Under the specifically defined operational condition, the proposed GALHP has more evenly distributed axial temperature profile. The effective thermal conductivity in the proposed GALHP was 29,968 W/C m. It is therefore concluded that the novel heat pipe could achieve a significantly enhanced heat transport effect. The results derived from this research enabled characterisation of the thermal performance of the proposed GALHP and validation of the developed computer simulation model. The research will enable design, optimisation and analysis of such a new GALHP, thus promoting its wide application and achieving efficient thermal management.

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“…The mass flow rate within the wick structure is considered to be constant owing to the mass conservation law, given by [4,16]…”

Section: The Model Applicable To the Proposed Galhpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of a Novel Liquid-Vapour Separator-Incorporated Gravitational Loop Heat Pipe

Zhao¹,

Weng²,

Zhang³

et al. 2019

Recent Advances in Heat Pipes [Working Title]

View full text Add to dashboard Cite

show abstract

Technology Overview of a Multi-Evaporator Miniature Loop Heat Pipe for Spacecraft Applications

Ottenstein

Douglas

et al. 2012

Journal of Spacecraft and Rockets

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Mathematical Modeling of Loop Heat Pipes with Mutiple Capillary Pumps and Multiple Condensers, Part I Steady State Simulations

Hoang¹,

O’Connell²,

Ku³

2004

2nd International Energy Conversion Engineering Conference

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Loop Heat Pipe Testing and Analytical Model Verification at the U.S. Naval Research Laboratory

Cited by 8 publications

References 6 publications

Study of a Novel Liquid-Vapour Separator-Incorporated Gravitational Loop Heat Pipe

Study of a Novel Liquid-Vapour Separator-Incorporated Gravitational Loop Heat Pipe

Technology Overview of a Multi-Evaporator Miniature Loop Heat Pipe for Spacecraft Applications

Mathematical Modeling of Loop Heat Pipes with Mutiple Capillary Pumps and Multiple Condensers, Part I Steady State Simulations

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