Total Heat Transfer
Total heat transfer, abbreviated as Q, is the heat put into a system or heat lost from a system.
Total Heat Transfer Formula |
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\(\large{ Q = h \; A \; \left( T_s \;-\; T_{\infty} \right) }\) | ||
Symbol | 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 | \(\large{F}\) | \(\large{K}\) |