Heat Flux

Written by Jerry Ratzlaff on . Posted in Thermodynamics

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Heat flux, abbreviated as Q", also called thermal flux, is the heat flow rate transfer through a given surface, per unit surface.

 

Heat Flux formula

\(\large{ Q" = \frac { Q_f } { A }  }\) 

Where:

 Units English Metric
\(\large{ Q" }\) = heat flux \(\large{\frac{Btu}{hr-ft^2}}\)  \(\large{\frac{W}{m^2}}\)
\(\large{ A }\) = area \(\large{ft^2}\) \(\large{m^2}\)
\(\large{ Q_f }\) = heat flow rate \(\large{\frac{Btu}{hr}}\) \(\large{W}\)

 

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Tags: Heat Equations