Rewetting of hot horizontal tubes

Abdul-Razzak, A.; Shoukri, M.; Chan, A. M. C.

doi:10.1016/0029-5493(92)90072-4

Cited by 8 publications

(10 citation statements)

References 9 publications

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“…Liquid water and common refrigerants are usually used in this type of experiment. For example, Chan and Banerjee [6][7][8] and later Abdul-Razzak et al [31] used water to chilldown a preheated horizontal tube. In their experiments, the chilldown process was divided into three regions, namely film boiling region, partially quenched region and totally quenched region.…”

Section: Terrestrial Chilldown Experimentsmentioning

confidence: 98%

An experimental study on terrestrial cryogenic transfer line chilldown I. Effect of mass flux, equilibrium quality, and inlet subcooling

Darr

Glikin

et al. 2016

International Journal of Heat and Mass Transfer

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Section: Terrestrial Chilldown Experimentsmentioning

confidence: 98%

An experimental study on terrestrial cryogenic transfer line chilldown I. Effect of mass flux, equilibrium quality, and inlet subcooling

Darr

Glikin

et al. 2016

International Journal of Heat and Mass Transfer

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“…The flow rate in the test of Chan and Banerjee (1981a) was about 150~450 2 kg/m s , while it was even higher (400~1300 2 kg/m s ) in the experiments by Abdul-Razzak et al (1992). In current chilldown test, the flow rate is much lower.…”

Section: Visualization Studymentioning

confidence: 98%

“…Liquid water or common refrigerant are usually used in this type of experiments. For example, Chan and Banerjee (1981a, b, c) and later Abdul-Razzak et al (1992) used water to chilldown a preheated horizontal tubes. In their experiments, the chilldown process was divided into three regions, namely film boiling region, partially quenched region and totally quenched region.…”

Section: Terrestrial Chilldown Experimentsmentioning

confidence: 99%

Recent Progress on Experimental Research of Cryogenic Transport Line Chilldown Process

Chung¹,

Yuan²

2015

Frontiers in Heat and Mass Transfer

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Chilldown or quenching is a complicated process that initiates the cryogenic fluid line transport, and it involves unsteady two-phase heat and mass transfer. To advance our understanding of this process, we have reviewed recent experimental investigations. The chilldown process can be generally divided into three regimes: film boiling, transition boiling and nucleate boiling, and each regime is associated with a different flow pattern and heat transfer mechanism. Under low flow rate conditions, it is concluded that the two-phase flow regime is dispersed flow in the film boiling regime. The dispersed liquid phase is in the form of long filaments as the transport line is chilled down, and the vapor phase is generally superheated. Microgravity experiment for line chilldown was conducted basically in the film boiling region. Bottom wall heat flux was found to decrease under microgravity condition. Under the experimental condition, the gravity effect does not show a strong dependence on wall temperature and inlet flow rate.

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“…Therefore, it is essential in these cases to complement the wall conduction analysis with the use of a two-fluid model to incorporate all the important thermohydraulic effects associated with the process. Moreover, the rewetting criterion suggested by Abdul-Razzak (1990a, 1992, based on vapour film collapse in film boiling, requires detailed analysis of the thermal and hydraulic characteristics of the coolant during the rewetting and refilling process. *All correspondences to be directed to this author The general approach in developing the two-fluid model presented by Chan and Banerjee (198 1) has been followed in the present study.…”

mentioning

confidence: 99%

“…*All correspondences to be directed to this author The general approach in developing the two-fluid model presented by Chan and Banerjee (198 1) has been followed in the present study. However, the main features of the present work are: i -The film boiling model and the rewetting criterion proposed by Abdul-Razzak et al (1991, 1992 which is further discussed in this paper, is incorporated in the two-fluid model. The rewetting criterion is a key factor in predicting the propagation of the quench front.…”

mentioning

confidence: 99%

Two-fluid modelling of the rewetting and refilling of hot horizontal tubes

1993

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This paper deals with the use of a two‐fluid model for predicting the thermal‐hydraulic characteristics of the rewetting and refilling of hot horizontal tubes. The two‐fluid model equations were simplified and solved using an explicit finite difference scheme. A set of constitutive equations is used for closure. A new film boiling model and a model for evaluating the rate of latent to total heat in film boiling were incorporated in the two‐fluid model. A newly proposed rewetting criterion, based on vapour film collapse, was used to mark the end of the film boiling regime. The model is capable of predicting the rewetting and refilling process in horizontal tubes under conditions of stratified or inverted annular refilling flow. The model predictions were found to be in good agreement with the experimental results.

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Rewetting of hot horizontal tubes

Cited by 8 publications

References 9 publications

An experimental study on terrestrial cryogenic transfer line chilldown I. Effect of mass flux, equilibrium quality, and inlet subcooling

An experimental study on terrestrial cryogenic transfer line chilldown I. Effect of mass flux, equilibrium quality, and inlet subcooling

Recent Progress on Experimental Research of Cryogenic Transport Line Chilldown Process

Two-fluid modelling of the rewetting and refilling of hot horizontal tubes

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