Heat transfer coefficients in concentric annuli

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dc.contributor.advisor Prof. J.P. Meyer en_US
dc.contributor.author Dirker, Jaco
dc.date.accessioned 2012-09-05T10:09:25Z
dc.date.available 2012-09-05T10:09:25Z
dc.date.issued 2012-09-05
dc.date.submitted 2002-01
dc.identifier.uri http://hdl.handle.net/10210/7019
dc.description M.Ing en_US
dc.description.abstract The geometric shape of a passage's cross-section has an effect on its convective heat transfer capabilities. For concentric annuli, as cross section, the diameter ratio of the annular space plays an important role. The purpose of this investigation was to find a . correlation that will accurately predict heat transfer coefficients at the inner wall of smooth concentric annuli for the flow of water. Experiments were conducted on water under turbulent flow conditions for a wide range of diameter ratios. The Wilson plot method was used to determine the heat transfer coefficients from which a correlation was developed that could be used to predict the heat transfer coefficients. It was found that the correlation predicted Nusselt numbers accurately within 3% of measured values for diameter ratios between a = 1.7 and a = 5.1 and a Reynolds numbers range of 4 000 to 30 000. en_US
dc.language.iso en en_US
dc.subject Nusselt number en_US
dc.subject Heat -- Transmission en_US
dc.title Heat transfer coefficients in concentric annuli en_US
dc.type Thesis en_US

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