Local heat transfer measurements of steam/air mixtures in horizontal condenser tubes

Local heat transfer measurements of steam/air mixtures in horizontal condenser tubes

Condensation of vapor/noncondensable gas mixtures in horizontal tubes is not well understood because condensate stratification and the multidimensional nature add to the complexity of the phenomena. The heat transfer and fluid flow phenomena in a horizontal condenser tube were experimentally studied...

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Veröffentlicht in:International journal of heat and mass transfer 2006-07, Vol.49 (15), p.2491-2501
Hauptverfasser: Wu, Tiejun, Vierow, Karen
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Sprache:eng
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Condensation
Flow regime
Noncondensable gas
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container_title International journal of heat and mass transfer
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Vierow, Karen
description Condensation of vapor/noncondensable gas mixtures in horizontal tubes is not well understood because condensate stratification and the multidimensional nature add to the complexity of the phenomena. The heat transfer and fluid flow phenomena in a horizontal condenser tube were experimentally studied, along with the heat transfer reduction effect of a noncondensable gas. The temperature gradient across the condenser tube wall was measured locally to investigate the asymmetrical heat transfer characteristics around the condenser tube periphery. The condensation heat transfer coefficients on the tube top were much greater than the values at the bottom and the noncondensable gas significantly reduced the heat transfer rate.
doi_str_mv 10.1016/j.ijheatmasstransfer.2006.01.025
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subjects Condensation
Flow regime
Noncondensable gas
title Local heat transfer measurements of steam/air mixtures in horizontal condenser tubes
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