What is DITTUS-BOELTER EQUATION?

An equation for the transfer of heat from tubes to viscous fluids flowing through them. where w=film transfer factor, &=thermal conductivity, A =logarithmic mean temperature difference between tube and liquid, d=thickness of fluid stream, s =relative density of fluid, c =specific heat capacity of fluid, v=mean velocity of fluid in tube, and u/s =kinematic viscosity of the fluid,


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