A Particle Bed Dryout Model Based on Flooding

Ostensen, R.W.; Lipinski, Ronald J.

doi:10.13182/nse81-a19046

Cited by 18 publications

(6 citation statements)

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“…This is not surprising in view of the similarity in equations. Lipinski (1981) also showed that the drying power predicted by the one-dimensional model is close to that predicted by No. 5 of the table.…”

Section: $ > 0 Casesupporting

confidence: 67%

“…Dryout heat flux is taken as the heat flux at which the relative liquid saturation at the heater surface is 0. Lipinski (1981) and Gabor et al (1981) applied a capillary pressure gradient equation to the problem of dryout heat flux in a porous medium. Different results were obtained for the dryout heat flux.…”

Section: Discussionmentioning

confidence: 99%

“…Squarer (1981) presented an equation that predicts lower dryout heat flux than that found by Lipinski. Ostensen and Lipinski (1981) and Dhir and Catton (1982) used the flooding model to obtain equations for dryout heat flux. All these prediction equations predict different values for the dryout heat flux but have a slope of 1/2 on a log-log plot of dryout heat flux vs. particle diameter.…”

Section: Chemical Engineering Departmentmentioning

confidence: 99%

“…Comparisons of this equation with methanol and Freon are also shown in Figures 21a and 21c. The equation of Dhir and Catton (1982) for bottom heating, and the equations of Ostensen and Lipinski (1981), Squarer (1981), and Lipinski (1980), all for volumetric heating, were plotted in these figures. Many experiments were conducted in the transition regions.…”

Section: $ > 0 Casementioning

confidence: 99%

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Pool boiling from a surface with a porous layer

Chang

1987

AIChE Journal

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Boiling heat transfer from a porous layer sintered on a horizontal heater surface and heated from the base was analyzed for laminar to turbulent regions. The effects of the thickness of the porous layer, particle diameter, porosity, pore size distribution, and the properties of fluids on boiling heat transfer were analyzed. Reynolds number, parameter +, and a dimensionless heat flux were related to each other. Most experimental data used in this work fall in the region where the vapor Reynolds number is less than 100; very few data exceeded far beyond 1,000.For thick porous beds, the thickness no longer affects the heat transfer. For thin porous beds, heat transfer is affected by the thickness of the porous layer. The prediction equations of various investigators for dryout heat flux were put into dimensionless forms and the differences that exist among the equations are explained.Correspondence concerning this paper should bc a d d r d to S. hi. Lu.

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Section: $ > 0 Casesupporting

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Chemical Engineering Departmentmentioning

confidence: 99%

Section: $ > 0 Casementioning

confidence: 99%

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Pool boiling from a surface with a porous layer

Chang

1987

AIChE Journal

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“…For particle diameters over 1 mm, Ostensen-Lipinski (1981) showed that the dryout heat flux is proportional to the square root of the particle diameter.…”

Section: But the Increasing Trend Is Different According To The Flow mentioning

confidence: 99%