Heat Transfer Coefficients for Turbulent Flow in Concentric Annular Ducts |
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| Authors: | Volker Gnielinski |
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| Affiliation: | Institute for Thermal Process Engineering, Universit?t Karlsruhe , Karlsruhe, Germany |
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| Abstract: | On the basis of a large number of experimental data from the literature, correlations were developed for the heat transfer coefficient for turbulent flow in concentric annular ducts. A proven correlation for heat transfer in circular tubes was extended by factors that take into consideration the effect of the diameter ratio of the annulus and the different boundary conditions for heating or cooling. |
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