Nucleate boiling heat transfer coefficients of pure halogenated refrigerants

Jung, Dongsoo; Kim, Young-il; Ko, Younghwan; Song, Kilhong

doi:10.1016/s0140-7007(02)00040-3

Cited by 99 publications

(44 citation statements)

References 9 publications

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“…Kew and Cornwell [6], using R-141b in a tube with a length of 500 mm and inner diameters of 1.39 to 3.69 mm, showed that the Cooper [18] pool boiling correlation best predicted their experimental data. Better prediction using the Cooper [18] correlation is also shown in the Jung et al [21] study.…”

Section: Nucleate Boiling Contributionsupporting

confidence: 58%

Two-phase flow heat transfer of propane vaporization in horizontal minichannels

Pamitran

Choi

et al. 2009

J Mech Sci Technol

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Experiments were performed on the convective boiling heat transfer in horizontal minichannels using propane. The test section was made of stainless steel tubes with inner diameters of 1.5 mm and 3.0 mm and lengths of 1000 mm and 2000 mm, respectively, and it was uniformly heated by applying an electric current directly to the tubes. Local heat transfer coefficients were obtained for a heat flux range of 5-20 kW m -2 , a mass flux range of 50-400 kg m -2 s -1 , saturation temperatures of 10, 5, and 0°C and quality ranges of up to 1.0. The nucleate boiling heat transfer contribution was predominant, particularly at the low quality region. Decreases in the heat transfer coefficient occurred at a lower vapor quality with a rise of heat flux and mass flux, and with a lower saturation temperature and inner tube diameter. Laminar flow appeared in the minichannel flows. A new boiling heat transfer coefficient correlation that is based on the superposition model for propane was developed with 8.27% mean deviation.

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Section: Nucleate Boiling Contributionsupporting

confidence: 58%

Two-phase flow heat transfer of propane vaporization in horizontal minichannels

Pamitran

Choi

et al. 2009

J Mech Sci Technol

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“…In addition, Eq. (1) with Ra = 0.6 lm predicted 75% of the experimental results of Jung et al [34] for halocarbon refrigerants on a plain tube without surface modifications to within ±4%, while Gorenflo [35], despite to the fact that no empirical constant was proposed for R32 and R125, predicted just 12% of the data of Jung et al [34] to within ±10%. Cooper [36] (without the multiplier of 1.7 suggested for circular copper tubes) gave a higher absolute average deviation of almost 20% from the data of Jung et al [34].…”

Section: Previous Studies (From 2000 Onward)mentioning

confidence: 96%

Nucleate boiling heat transfer of R134a on enhanced tubes

Ribatski

Thome

2006

Applied Thermal Engineering

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“…Kew and Cornwell (1997) and Jung et al (2003) showed that the Cooper (1984) pool boiling correlation best predicted their experimental data. Chen (1966) defined the nucleate boiling suppression factor, S, as a ratio of the mean superheat, T e , to the wall superheat, T sat .…”

Section: Heat Transfer Coefficientmentioning

confidence: 88%