ENERGY LOSSES OF FULLY DEVELOPED CONVECTIVE HEAT TRANSFER INSIDE TUBES
管内定型流传热过程的有效能损失

An analytical study is conducted on energy losses of a fully developed convective heat transfer inside tubes.With the assumption of a fully developed inside tube flow subjected to constant wall heat flux or constant wall temperature,approximate expressions for dimensionless energy losses describing effects of heating,pumping power and the variation of viscosity are obtained.The present model is applicable for the energy analysis on fully developed laminar and turbulent flows inside tubes of a variety of cross-sectional shape.