Total Heat Transfer

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Total heat transfer, abbreviated as Q, is the heat put into a system or heat lost from a system.

 

Total Heat Transfer Formula

\(\large{ Q =  h \; A \;  \left( T_s \;-\; T_{\infty} \right)  }\)   

Where:

 Units English Metric
\(\large{ Q }\) = total heat transfer \(\large{\frac{Btu}{hr}}\) \(\large{W}\)
\(\large{ A }\) = surface area where heat is transfered \(\large{ft^2}\) \(\large{m^2}\)
\(\large{ h }\) = heat transfer coefficient \(\large{\frac{Btu}{hr-ft^2-F}}\) \(\large{\frac{W}{m^2-K}}\)
\(\large{ T_s }\) = surface temperature \(\large{F}\) \(\large{K}\)
\(\large{ T_{\infty} }\) = approach fluid temperature \(\large{F}\) \(\large{K}\)

 

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Tags: Equations for Heat Transfer Equations for Heat