A Study of Film Boiling on a Horizontal Plate

Lao, Yan-jeong; Barry, Robert E.; Balzhiser, Richard E.

doi:10.1615/ihtc4.380

Cited by 5 publications

(5 citation statements)

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“…Visual observations of the minimum temperature for these fluids in liquid-liquid film boiling appeared to compare well with the calculated results from Berenson [4]. The investigation did produce the first measured film boiling curves on a liquid surface to superheats over 200 K. The data agreed reasonably well with earlier solid surface measurements by Hosier and Westwater [5] and Lao [6] u->lng Freon 11 as the boiling liquid.…”

Section: Introductionsupporting

confidence: 83%

“…In addition to the experimental data taken in this study, there exist several additional data sets in the literature with which to compare these results. Two of these were restricted to film boiling of R-ll on solid surfaces, namely Hosier and Westwater [5] and Lao et al [6]. The third study specifically addressed liquid-liquid film boiling, that of Henry et al [3].…”

Section: Comparison To Existing Datamentioning

confidence: 99%

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Film Boiling of R-11 on Liquid Metal Surfaces

Greene

Irvine

1986

Proceeding of International Heat Transfer Conference 8

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An interesting problem Is the effect of an immiscible liquid heating surface on the process of film boiling.Such surfaces raise questions concerning interface stability to disturbances, effects of gas bubbling, and vapor explosions in layered systems.The specific motivation for this study was to investigate film boiling from a liquid surface with application to cooling of molten reactor core debris by an overlying pool of reactor coolant. To investigate this phenomenon, an apparatus consisting of a nominal six-inch diameter steel vessel to hold the liquid metal and boiling fluid was constructed; coolant reservoirs, headers, controllers, and allied instrumentation were attached.A transient energy balance was performed on the liquid metal pool by a submerged assembly of microthermocouples in the liquid metal and an array of thermocouples on the wall of the test vessel. The thermocouple data were used to determine the boiling heat flux as well as the boiling superheat. On an average basis, the deviation between the prediction of the Berenson [4] model and the experimental data was less than one percent when Berenson was corrected for thermal radiation effects.Evidence from visualization tests of R-ll in film boiling over molten metal pools to superheats in excess of 600 K supports this conclusion.

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Section: Introductionsupporting

confidence: 83%

Section: Comparison To Existing Datamentioning

confidence: 99%

Film Boiling of R-11 on Liquid Metal Surfaces

Greene

Irvine

1986

Proceeding of International Heat Transfer Conference 8

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“…Visual observationsof film boiling on horizontal flat surfaces are much more difficult;however, there are some studies (Borishansky,1953;. lloslerand Westwater, 1962;Lao, 1969;Duignan et al, 1989). Nukiyama (1934) wanted to observe experimentallyall the boiling phenomena together, including the film boiling region which he called the "spheroidalstate" [firstcoined by Boutigny in 1843, as pointedout by Gottfriedet al (1966)].…”

Section: Reviewof the Literaturementioning

confidence: 99%

“…2: If the condensing vapor is stationary above the condensed film, there is no force tending to shear'at tilevapor'-liquid interface. Lao (1969) pointed out that in 1941 Colburn suggested using Nusselt's laminar film condensationtheory to describe film boiling theoretically. Even though, it was not until 1948 that Bromley developed a comprehensive model, based primarily on the Nusselt film-conderlsation approach.…”

Section: Reviewof the Literaturementioning

confidence: 99%

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Enhanced convective and film boiling heat transfer by surface gas injection

Duignan¹,

Greene

Irvine

1992

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This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or r_'sponsibility for the accuracy, completeness, or usefulness of any information, _paratut,, product, or process disclosed, or represent_ that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency, contractor or subcontractor thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United St,stes Government or _uly agency, contractor or subcontractor thereof.

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