Heat Transfer Rate

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Heat transfer rate, abbreviated as \(Q_t\), is the amount of hear transfered per unit of time per fluid or material.

 

Heat Transfer Rate FormulA

\(\large{ Q_t = k_t \; \frac { \Delta T}{l} }\) 

Where:

 Units English Metric
\(\large{ Q_t }\) = heat transfer rate \(\large{\frac{Btu}{hr}}\) \(\large{W}\)
\(\large{ l }\) = length or distance \(\large{ft}\) \(\large{m}\)
\(\large{ \Delta T }\) = temperature differential \(\large{F}\) \(\large{K}\)
\(\large{ k_t }\) = thermal conductivity constant  \(\large{\frac{Btu-ft}{hr-ft^2-F}}\)  \(\large{\frac{W}{m-K}}\)

 

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Tags: Heat Transfer Equations Heat Equations