Heat release and absorption from surfaces can be enhanced by fins. The fins are to be placed on the side of poorer heat transfer. Fins will be effective all the more as the ratio of the heat transfer coefficient from the side of better heat transfer to that of poorer increases.
Basic requirement for the following approach is an ideal contact between the fin base and tube or surface. The shown method has to be regarded as a first approach. It will not fit for abnormal dimensions or extremely high Reynolds numbers. Indispensable for such cases is the examination of appropriate literature and far reaching modeling related to experimental data.
A mean heat transfer coefficient has to be found and evaluated on the base of geometrically determined consideration. Therefore, the model cannot differentiate local changes in heat flux due to different temperatures over the fin caused by convection.
It is assumed that the direction of fluid flow corresponds to the orientation of the fins. Heat...
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
3 Bibliography
Brandt F (1988) VDI-Wärmeatlas, Mb. 5. Auflage
Gnielinski V, Zukauskas A, Skrinska A (1983) Heat exchanger design handbook. Hemisphere Publishing Corporation, New York
Wehle F (1980) Forsch.i.d.Kraftwerkstechn. S. 165/169
Wehle F (1983) Theoretische und experimentelle Untersuchung der Wärmeübertragung bei Rippenrohrbündeln und Einfluss der Temperaturabhängigkeit der Stoffwerte auf den Wärmeübergang; Fortschr.Ber. VDI, Reihe 6, Nr. 121. VDI-Verlag, Düsseldorf
Ebeling N, Schmidt KG (1994) Waermeleistung von Rippenrohr-Waermeaustauschern mit zusammenhaengenden Rippen; Brennst.-Waerme-Kraft 46(10):437–438
Brauer H (1961) Spiralrippenrohre für Querstrom-Wärmeaustauscher. Z. Kältetechnik 13:S. 274/279
Briggs DE, Young u. EH (1963) Eng Prog Sym Ser 59(41):S. 1/9
Schmidt Th. E (1963) Z. Kältetechik 15:S. 98
Schmidt Th. E (1963) Z. Kältetechik 15:S. 370/378
Schmidt Th. E (1966) Verbesserte Methoden zur Bestimmung des Wärmeaustausches an berippten Flächen; Kaeltetech Klim 18(4):135–138
Confidential industrial data for evaluation of Eqs. (15) and (16)
Handbuch HTFS AM1, Aug 85, commercial edition
Report ESG-4 HTRI, June 72, confidential
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag
About this entry
Cite this entry
Schmidt, K.G. (2010). M1 Heat Transfer to Finned Tubes. In: VDI Heat Atlas. VDI-Buch. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77877-6_94
Download citation
DOI: https://doi.org/10.1007/978-3-540-77877-6_94
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-77876-9
Online ISBN: 978-3-540-77877-6
eBook Packages: EngineeringReference Module Computer Science and Engineering