Comparative Study of Forced Convection Boiling Heat Transfer Correlations for Cryogenic Fluids

Giarratano, P. J.; Smith, R. V.

doi:10.1007/978-1-4757-0522-5_53

Cited by 17 publications

(9 citation statements)

References 4 publications

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“…9, the wall temperature based on the film boiling correlation of Giarratano and Smith [24] is also shown. Apparently, the correlation of Giarratano and Smith [24] gives a very low heat transfer rate so that the wall temperature remains high. This comparison confirms our earlier argument that correlations based on the overall flow parameter, such as quality and averaged Reynolds number, are not applicable for the simulation of the unsteady chilldown.…”

Section: Discussion and Remarksmentioning

confidence: 85%

“…In Fig. 9, the wall temperature based on the film boiling correlation of Giarratano and Smith [24] is also shown. Apparently, the correlation of Giarratano and Smith [24] gives a very low heat transfer rate so that the wall temperature remains high.…”

Section: Discussion and Remarksmentioning

confidence: 99%

“…Empirical correlations for cryogenic film boiling were proposed by Hendrick et al [20] [21], Ellerbrock et al [22], von Glahn [23], Giarratano and Smith [24]. These correlations relate a simple or modified Nusselt number ratio to the Martinelli parameter.…”

Section: Ht2005-72651mentioning

confidence: 99%

“…These correlations relate a simple or modified Nusselt number ratio to the Martinelli parameter. Giarratano and Smith [24] gave detailed assessment of these correlations. All these correlations are for steady state cryogenic film boiling.…”

Section: Ht2005-72651mentioning

confidence: 99%

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Cryogenic Chilldown Model for Stratified Flow Inside a Pipe

Liao

Yuan

Mei

et al. 2005

Heat Transfer: Volume 2

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A pseudo-steady model has been developed to predict the chilldown history of the pipe wall temperature in horizontal transport pipelines for cryogenic fluids. A new film boiling heat transfer model is developed by incorporating the stratified flow structure for cryogenic chilldown. A modified nucleate boiling heat transfer correlation for the cryogenic chilldown process inside a horizontal pipe is proposed. The efficacy of the correlations is assessed by comparing the model predictions with measured values of wall temperature in several azimuthal positions in a well controlled experiment by Chung et al. (2004). The computed pipe wall temperature histories match well with the measured results. The present model captures important features of thermal interaction between the pipe wall and the cryogenic fluid, provides a simple and robust platform for predicting the pipe wall chilldown history in a long horizontal pipe at relatively low computational cost, and builds a foundation to incorporate the two-phase hydrodynamic interaction in the chilldown process.

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Section: Discussion and Remarksmentioning

confidence: 85%

Section: Discussion and Remarksmentioning

confidence: 99%

Section: Ht2005-72651mentioning

confidence: 99%

Section: Ht2005-72651mentioning

confidence: 99%

See 2 more Smart Citations

Cryogenic Chilldown Model for Stratified Flow Inside a Pipe

Liao

Yuan

Mei

et al. 2005

Heat Transfer: Volume 2

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“…If this is true, then any available heat transfer correlations for normal liquid helium based on ground testing can be applied. Giarratano et al 22 suggested the correlation …”

Section: Nucleate Boiling Regimementioning

confidence: 98%

Proposed mechanics model to simulate transfer line cool-down processusing liquid helium

Lee

Kittel

1987

Journal of Spacecraft and Rockets

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This paper proposes a mathematical model to simulate the cool-down behavior of a warm transfer line using liquid helium (including He II) in a microgravity enviroment. The thermal-hydraulic characteristics of different possible flow regimes which may occur during the cool-down process are discussed. Correlations for predicting the heat and momentum transfer rates in each flow regime are presented.T'" Nomenclature = cross-sectional area = Gorter-Mellink coefficient = friction coefficient = specific heat of liquid = hydraulic diameter of flow channel = mutual friction force = mass velocity of the mixture g/s -cm 2 = enthalpy = latent heat of vaporization = heat transfer coefficient = conductivity = vaporization rate per unit volume = droplet number density = Nusselt number = pressure = pressure difference between phase k and the interface = Prandtl number = perimeter = heat flux (W/m 2 ) = heat rate per unit volume (W/m 3 ) = sensible heat of phase k per unit volume = Reynolds number = specific entropy = time = temperature -T W -T, -velocity = relative velocity = velocity of He II in two-fluid model = velocity vector of normal fluid helium = velocity vector of superfluid = axial coordinate = density = viscosity = void fraction = liquid fraction = shear stress per unit volume Presented as Paper 85-0961 at a = surface tension between the liquid and its own vapor O R = Stefan-Boltzmann constant a s = mean diameter of droplets <5, = liquid film thickness in the annular flow regime d g = vapor film thickness in the inverted annular flow regime e = emissivity v = specific volume Subscripts and Superscripts b c ev g gd gi i k I n r s sat v w wd wg wl = boiling = convection = vaporization = vapor (or gas) = vapor to droplets = vapor and interface = interface = liquid or vapor = liquid = normal fluid = radiation = superfluid = saturation =vapor = wall = wall to droplets = wall to vapor = wall to liquid

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Wärmeübergang und Druckverlust bei Strömung von verdampfendem Stickstoff im waagerechten Rohr

Klein¹

1977

Chemie Ingenieur Technik

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Comparative Study of Forced Convection Boiling Heat Transfer Correlations for Cryogenic Fluids

Abstract: Hard copy (HC) a. bp Microfiche (M F) f50ff 863 JuIv 85

Cited by 17 publications

References 4 publications

Cryogenic Chilldown Model for Stratified Flow Inside a Pipe

Cryogenic Chilldown Model for Stratified Flow Inside a Pipe

Proposed mechanics model to simulate transfer line cool-down processusing liquid helium

Wärmeübergang und Druckverlust bei Strömung von verdampfendem Stickstoff im waagerechten Rohr

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