Characteristics of heat transfer coefficient during nucleate pool boiling of binary mixtures

Inoue, Toshiaki; Kawae, Nobuji; Monde, Masanori

doi:10.1007/s002310050199

Cited by 48 publications

(30 citation statements)

References 7 publications

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“…Table 4 and differ by an average relative error of ~ -0.2% from the extended NIST predictions at temperatures above 0°C, and by ~ -1.2% for data below -10°C. Tests are continuing with C 3 F 8 9 and custom mixtures of C 4 F 10 and C 3 F 8 . Comparison data will be included in a forthcoming publication.…”

Section: Sonar Tests Resultsmentioning

confidence: 99%

Perfluorocarbons and their use in cooling systems for semiconductor particle detectors

Vacek

Hallewell

Ilie

et al. 2000

Fluid Phase Equilibria

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We report on the development of evaporative fluorocarbon cooling for the semiconductor pixel and micro-strip sensors of inner tracking detector of the ATLAS experiment at the future CERN Large Hadron Collider (LHC). We proceeded with studies using perfluoro-n-propane (3M-"PFG 3 F 8 ), perfluoro-n-butane (3M-"PFG 5040"; C 4 F 10 ), trifluoro-iodo-methane (CF 3 I) and custom C 3 F 8 /C 4 F 10 mixtures. Certain thermo-physical properties had to be verified for these fluids. Sound velocity was calculated for the pure fluids and custom mixtures. A Sonar instrument was developed for the measurement of sound velocity in the above fluids at a variety of temperatures and pressures. Irradiation studies were made on the fluids using neutrons and gamma rays to determine their suitability for use in the high radiation environment at LHC.

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Section: Sonar Tests Resultsmentioning

confidence: 99%

Perfluorocarbons and their use in cooling systems for semiconductor particle detectors

Vacek

Hallewell

Ilie

et al. 2000

Fluid Phase Equilibria

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“…Correlation of the data on HTC during boiling of ammonia and five refrigerants on the same heating surface (platinum wire with diameter 0.3 mm) under different saturation pressures [57,90] is presented in the Fig. (30).…”

Section: Correlation Of Experimental Data On Developed Boiling On Commentioning

confidence: 99%

Boiling Heat Transfer: Mechanisms, Models, Correlations and the Lines of Further Research

Shekriladze¹

2008

TOMEJ

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A review discusses current status of boiling heat transfer research. Basic experimental facts, physical models and correlations of experimental data on heat transfer coefficient (HTC) are reconsidered. Principal restrictions of traditional model of "the theatre of actors" (MTA) are demonstrated. Basic role of control of HTC by thermodynamic conditions on nucleation sites is demonstrated and consequent model of "the theatre of director" (MTD) is discussed. Universal MTD-based correlation of boiling HTC of all types of liquids is presented. Unified consistent research framework for developed boiling heat transfer and diverse specific boiling heat transfer regimes is outlined through supplementing MTD by so-called multifactoring concept (MFC). MFC links transition from developed boiling mode to diverse boiling curves to a phenomenon of multiplication of factors influencing HTC. Multifactoring phenomenon equally can cover any boiling process including boiling in minichannels and microchannels. Possible types of multifactoring are considered. Finally, the ways of further research of the boiling problem are discussed.

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“…Frequently used correlations [1] to calculate the heat transfer coefficient of binary mixtures require the ideal heat transfer coefficient as input parameter. The ideal heat transfer coefficient a id is gained by a molar average of the heat transfer coefficients of the two pure components of the mixture.…”

Section: Identification Of Decisive Physical Phenomenamentioning

confidence: 99%

“…Although correlations are very useful for design purposes, they do not inform on physical phenomena governing heat transfer performance. For the same liquid and boiling conditions, empirical correlations are even partly based on different physical models [1].…”

Section: Introductionmentioning

confidence: 99%

Identification of Physical Phenomena Governing Nucleate Boiling Heat Transfer of Binary Mixtures

Kern¹,

Stephan

2004

Chem Eng & Technol

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A model based on first principles is presented to compute nucleate boiling heat transfer coefficients. It includes microscale heat and mass transfer phenomena in the so-called micro region, i.e., the thin film area where the liquid vapor phase interface approaches the wall. The model is verified by comparing calculated to measured heat transfer coefficients. Parameter studies allowed to identify physical phenomena governing the typical reduction of binary mixture heat transfer coefficients compared to the ideal heat transfer coefficient, i.e., the molar average of the heat transfer coefficients of the two pure components of the mixture. These are bubble site density and departure diameter that deviate from the corresponding values of the two pure components. Furthermore, overall heat transfer is decreased by strong concentration gradients in the micro region.

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Characteristics of heat transfer coefficient during nucleate pool boiling of binary mixtures

Cited by 48 publications

References 7 publications

Perfluorocarbons and their use in cooling systems for semiconductor particle detectors

Perfluorocarbons and their use in cooling systems for semiconductor particle detectors

Boiling Heat Transfer: Mechanisms, Models, Correlations and the Lines of Further Research

Identification of Physical Phenomena Governing Nucleate Boiling Heat Transfer of Binary Mixtures

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