Prediction of thermal non-equilibrium in the post-dryout regime

Groeneveld, D.C.; Delorme, G.G.J.

doi:10.1016/0029-5493(76)90138-2

Cited by 151 publications

(29 citation statements)

References 1 publication

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“…Further informations will be found in Ref. (18). Surface temperature is not calculated in a straight-forward manner but a set of the above equations is solved by an iteration.…”

Section: Ill Experimental Results and Discussionmentioning

confidence: 99%

Investigation of pre- and post-dryout heat transfer in upward steam-water two-phase flow at low flow rate.

Koizumi¹,

Tasaka²

1982

J. Nucl. Sci. Technol.

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“…Further informations will be found in Ref. (18). Surface temperature is not calculated in a straight-forward manner but a set of the above equations is solved by an iteration.…”

Section: Ill Experimental Results and Discussionmentioning

confidence: 99%

Investigation of pre- and post-dryout heat transfer in upward steam-water two-phase flow at low flow rate.

Koizumi¹,

Tasaka²

1982

J. Nucl. Sci. Technol.

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“…They obtained the transition of surface temperature on the outer and inner tubes. They modified the existing correlations, e.g., by Groeneveld and Delorme (1976) and Dougall and Rohsenow (1963).…”

Section: Channels and Annuli With Narrow Gapsmentioning

confidence: 98%

Boiling and two-phase flow in channels with extremely small dimensions: a review of Japanese research

Ohta

2005

Microfluid Nanofluid

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Research concerning micro-actuators utilizing vapor-liquid interfacial phenomena has been carried out extensively to develop thermal devices applied to micromachines. On the other hand, the application of twophase flow is useful for the removal of waste heat from the semiconductor chips with highly increased heat generation density to be integrated in notebook PCs. In the present paper, the latest Japanese research on boiling and two-phase flow in minichannels is reviewed, covering the topics for the fundamental phenomena and practical applications. Boiling in a narrow channel between parallel plates is an ideal system for the development of high-performance heat exchangers with extremely small sizes. The promising approaches to increasing the critical heat flux (CHF) are introduced, including those by the present author, to compensate for the disadvantages inherent in this system. KeywordsMicrochannel AE Minichannel AE Boiling AE Two-phase flow AE Critical heat flux List of symbols D Inner diameter (m) D e Hydraulic diameter (m) G Mass velocity (kg/m 2 s) g/g e Ratio of gravity to the normal gravity j Superficial velocity (m/s) P Pressure (Pa) q Heat flux (W/m 2 ) q CHF Critical heat flux (W/m 2 ) q o Heat flux evaluated from power input (W/m 2 ) q w Surface heat flux (W/m 2 ) s Gap size (mm) T Temperature (°C), or aspect ratio u Liquid velocity (m/s)

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“…a tp,j is the heat transfer coefficient by Kandlikar [31] ( _ x th;a < 0:8) or by Groeneveld and Delorme [32] ( _ x th;a > 0:8) and A R,j the necessary heat transfer area of the two-phase saturated flow boiling.…”

Section: Flow Boiling Of Saturated Refrigerantmentioning

confidence: 99%

“…x th;a > 0:8) by Groeneveld and Delorme [32] must be calculated from the section-wise constant wall temperatures. Moreover, the necessary heat transfer area of the respective parts and sections in the subcritical pressure range must be determined according to the changing refrigerant side heat transfer mechanism and thus is not known a priori.…”

Section: Modeling and Assumptionsmentioning

confidence: 99%

Simple models for the heat exchange from exhaust gas to super- and sub-critical refrigerant R134a at high temperature differences

Zegenhagen

Ziegler

2015

Applied Thermal Engineering

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Prediction of thermal non-equilibrium in the post-dryout regime

Cited by 151 publications

References 1 publication

Investigation of pre- and post-dryout heat transfer in upward steam-water two-phase flow at low flow rate.

Investigation of pre- and post-dryout heat transfer in upward steam-water two-phase flow at low flow rate.

Boiling and two-phase flow in channels with extremely small dimensions: a review of Japanese research

Simple models for the heat exchange from exhaust gas to super- and sub-critical refrigerant R134a at high temperature differences

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