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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

PREDICTION OF WALL TEMPERATURE DISTRIBUTIONS IN LONG LINES UNDERGOING NATURAL CONVECTION AT HIGH RAYLEIGH NUMBERS

Get access (open in a dialog) DOI: 10.1615/IHTC10.3340
pages 519-524

Abstract

An analysis is developed to predict wall temperatures in long horizontal lines with different end temperatures undergoing natural convection at very high Rayleigh number. Heat is transferred through the top (hotter) intrusion layer and by conduction through the wall in the circumferential direction to the lower section of the line, where it is then transferred to the bottom (cooler) layer. A fin model of the wall was used to solve for the angular variation in wall temperature as a function of local fluid temperatures and heat transfer coefficients.