Heat Transfer Coefficient

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Heat transfer coefficient, abbreviated as h, also known as film coefficient or film effectiveness, is the convective heat transfer between a solid surface and the fluid around it.

 

Heat Transfer Coefficient formulas

\(\large{ h = \frac { Q" }{\Delta T} }\)   
\(\large{ h=\frac{ Nu \; k }{ l_c  }   }\)  (Nusselt number

Where:

\(\large{ h }\) = heat transfer coefficient

\(\large{ l_c }\) = characteristic length

\(\large{ Q" }\) = heat flux

\(\large{ Nu }\) = Nusselt number

\(\large{ \Delta T }\) = temperature differential between the solid surface and surrounding area

\(\large{ k }\) = thermal conductivity

 

Tags: Equations for Coefficient Equations for Heat