THE CALCULATION OF CRITICAL HEAT FLUX IN FORCED CONVECTION BOILINGP. B. Whalley AbstractA method of calculating critical heat flux in forced convective boiling in vertical up-flow in round tubes is presented. The heat flux is assumed to be uniform. Results of the calculation are compared with experimental results for a variety of fluids including water at various pressures, and fluorinated hydrocarbons. Very encouraging agreement with experiment is found. The calculation method assumes that the two-phase mixture of liquid and vapour form an annular type of flow. The burnout point is calculated as that at which the liquid film flow rate becomes equal to zero. |
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