화학공학소재연구정보센터
International Journal of Heat and Mass Transfer, Vol.41, No.2, 261-274, 1998
Heat transfer correlations for small, uniformly heated liquid pools
Heat transfer data of numerous investigators for uniformly-heated liquid pools of water, ethanol, methanol, Dowtherm-A, R-11 and R-113 in small cylindrical enclosures were compiled,; sorted, and correlated in the following heat transfer regimes: (a) natural convection; (b) nucleate boiling; and (c) combined convection. In the combined convection, where both natural convection and nucleate boiling contribute to tbe heat transfer, the data were correlated by superimposing the natural convection and nucleate boiling heat transfer correlations using a power law approach as: Nu(CC) = (Nu(NC)(4) + Nu(NB)(4))(0.25). All correlations were within +/- 15% of most experimental data. The data covered a wide range of pool diameters (6-37 mm), heated pool heights (50-800 mm), working fluid filling ratios (0.1-3.25), and wall heat fluxes (0.7-383 kW m(-2)). (C) 1997 Elsevier Science Ltd.