Pressure drop and heat transfer during two-phase flow vaporization of propane in horizontal smooth minichannels

Choi, Kwang-Il; Pamitran, Agus Sunjarianto; Oh, Jong-Taek; Saito, Kiyoshi

doi:10.1016/j.ijrefrig.2008.12.005

Cited by 70 publications

(40 citation statements)

References 33 publications

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“…This can be explained by the fact that the vapour velocity (due to higher vapour density) and also the liquid viscosity decrease with saturation temperature which result in lower pressure drop. These types of trends are also observed by Choi et al [17] and Revellin and Thome [18]. It can also be observed from Fig.…”

Section: Effect Of Saturation Temperaturesupporting

confidence: 85%

Flow boiling of ammonia in vertical small diameter tubes: Two phase frictional pressure drop results and assessment of prediction methods

Maqbool

Palm

Khodabandeh

2012

International Journal of Thermal Sciences

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a b s t r a c tTwo phase pressure drops were measured for ammonia at a wide range of test conditions in two sizes of vertical mini channels. The test sections were made of stainless steel (AISI 316) tubes with internal diameter of 1.70 mm and 1.224 mm and a uniformly heated length of 245 mm. Experiments were conducted at three saturation temperatures of 23 C, 33 C and 43 C, the heat flux ranging from 15 to 355 kW/m 2 and the mass flux ranging from 100 to 500 kg/m 2 s. The effect of the heat flux, the mass flux, the vapour quality, the saturation temperature and the internal diameter on the two phase pressure drop are presented in this article. Some generalized two phase pressure drop correlations suggested for macro and micro scale channels are examined by comparing them with our experimental data. None of the examined correlations agreed well with the test data. A new correlation (modified form of Tran et al. correlation) is proposed which is able to predict the experimental data with MAD of 16% and 86% of the data is within AE30% range.

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Section: Effect Of Saturation Temperaturesupporting

confidence: 85%

Flow boiling of ammonia in vertical small diameter tubes: Two phase frictional pressure drop results and assessment of prediction methods

Maqbool

Palm

Khodabandeh

2012

International Journal of Thermal Sciences

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“…When the mass flux increases, the flow velocity increases, which raises both of two components. This effect of mass flux on the two-phase pressure drop was well observed in various studies including the single-mini/conventional-channel and multi-port tubes [4,8,[15][16][17][18][19].…”

Section: Pressure Dropmentioning

confidence: 54%

Pressure Drop and Boiling Heat Transfer Characteristics of R410A in Macro-Scale and Mini-Scale Channels

Oh¹,

Chien²,

Choi³

et al. 2017

Heat Exchangers - Advanced Features and Applications

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This chapter demonstrates the two-phase flow pressure drop and heat transfer of R410A during boiling in various tube types. The pressure drop and local heat transfer coefficients were obtained for heat fluxes ranging from 10 to 40 kW/m 2 , mass fluxes ranging from 100 to 600 kg/m 2 s, the vapour quality up to 1.0 and the saturation temperatures of 5-15°C. The test sections were made of various tube diameters of 1.5, 3.0, 6.61 and 7.49 mm, respectively. The effect of mass flux, heat flux, saturation temperature and inner tube diameter on pressure drop and heat transfer coefficient was analysed. The experimental results were compared against several existing pressure drop and heat transfer coefficient correlation. New correlations of pressure drop and boiling heat transfer coefficient were also developed in this present study.

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“…Pressure drop during flow boiling of propane in horizontal channels was studied by Choi et al (2009). An increase in mass flux or heat flux resulted in the higher pressure drop.…”

Section: Two-phas E Press Ure Dropmentioning

confidence: 99%

A Critical Review of Recent Investigations on Two-Phase Pressure Drop in Flow Boiling Micro-Channels

Saisorn¹

2012

Frontiers in Heat and Mass Transfer

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Pressure drop and heat transfer during two-phase flow vaporization of propane in horizontal smooth minichannels

Cited by 70 publications

References 33 publications

Flow boiling of ammonia in vertical small diameter tubes: Two phase frictional pressure drop results and assessment of prediction methods

Flow boiling of ammonia in vertical small diameter tubes: Two phase frictional pressure drop results and assessment of prediction methods

Pressure Drop and Boiling Heat Transfer Characteristics of R410A in Macro-Scale and Mini-Scale Channels

A Critical Review of Recent Investigations on Two-Phase Pressure Drop in Flow Boiling Micro-Channels

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