Article ID Journal Published Year Pages File Type
660394 International Journal of Heat and Mass Transfer 2008 9 Pages PDF
Abstract

To identify effects of the bottom inflow area on pool boiling heat transfer in a vertical annulus, three tube diameters (16.5, 25.4, 34.0 mm) and the saturated water at atmospheric pressure has been tested. The inflow area has been changed from 0 to 1060.3 mm2. To clarify effects of the inflow area on heat transfer results of the annulus are compared to the data of a single unrestricted tube. The inflow area changes heat transfer coefficients much and moves the deterioration point of heat transfer coefficients to the higher heat fluxes. To quantify effects of the inflow area on heat transfer, a new empirical correlation has been developed in terms of the area ratio, inflow area, and the heat flux. The correlation predicts the heat transfer data of boiling within ±10%.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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