Exchanged Heat in a Heat Exchanger
Exchanged Heat in a Heat Exchanger Formula |
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\(\large{ Q = h \; A \; LMTD }\) (Exchanged Heat in a Heat Exchanger) \(\large{ h = \frac{ Q }{ A \; LMTD } }\) \(\large{ A = \frac{ Q }{ h \; LMTD } }\) \(\large{ LMTD = \frac{ Q }{ h \; A } }\) |
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| Symbol | English | Metric |
| \(\large{ Q }\) = exchanged heat duty | \(\large{ \frac{Btu}{lbm}}\) | \(\large{ \frac{J}{kg}}\) |
| \(\large{ A }\) = exchange area | \(\large{ft^2}\) | \(\large{m^2}\) |
| \(\large{ h }\) = heat transfer coefficient | \(\large{\frac{Btu}{hr-ft^2-F}}\) | \(\large{\frac{W}{m^2-K}}\) |
| \(\large{ LMTD }\) = logarithmic mean temperature differential | \(\large{ \frac{Btu}{lbm}}\) | \(\large{ \frac{J}{kg}}\) |
Tags: Heat Transfer Heat Exchanger