%0 Journal Article
%@ 18125654
%A Ramahlingam, T.
%A Raghavan, V.R.
%D 2011
%F scholars:2120
%J Journal of Applied Sciences
%N 10
%P 1725-1732
%R 10.3923/jas.2011.1725.1732
%T The tube side heat transfer coefficient for enhanced double tube by Wilson plot analysis
%U https://khub.utp.edu.my/scholars/2120/
%V 11
%X The purpose of the investigation presented in this study is to evaluate the tube side single phase heat transfer performance on the EXTEK (Twisted Multi-Head) tube. The geometry of the cross-section for a flow passage has an effect on its convective heat transfer capabilities. For concentric annuli in a double tube heat exchanger, the annular surface enhancement and tube profile enhancement play an important role. EXTEK (Twisted Multi-Head) uses twisted extrusion of a star shape tube for tube profile enhancement. The study was able to develop individual heat transfer coefficient correlations for this new method of enhancement for the turbulent flow regimes. A plain annulus was also investigated for comparison. The Wilson plot method was used to determine the tube side heat transfer coefficients from which the Nusselt type correlations were developed. © 2011 Asian Network for Scientific Information.
%Z cited By 5