Sammenlign metoder
Gjennomgå de valgte metodene side om side; rader som avviker, er uthevet.
| Logaritmisk gjennomsnittlig temperaturforskjell× | Termisk motstandsnettverk× | |
|---|---|---|
| Fagfelt | Termodynamikk | Termodynamikk |
| Familie | Process / pipeline | Process / pipeline |
| Opprinnelsesår≠ | 1950 | 1985 |
| Opphavsperson≠ | Donald Kern | Frank Incropera and David DeWitt |
| Type≠ | Heat transfer correlation | Heat transfer network analysis |
| Opprinnelig kilde≠ | Kern, D. Q. (1950). Process Heat Transfer. McGraw-Hill. link ↗ | Incropera, F. P., DeWitt, D. P., Bergman, T. L., & Lavine, A. S. (2007). Fundamentals of Heat and Mass Transfer (6th ed.). Wiley. ISBN: 978-0470055540 |
| Alias | LMTD, logarithmic mean temperature difference | thermal circuit analogy, thermal network |
| Relaterte | 3 | 3 |
| Sammendrag≠ | The Log Mean Temperature Difference (LMTD) method is a fundamental tool for calculating heat transfer rates in heat exchangers. It defines the effective temperature difference between two fluids as the logarithmic average of the temperature differences at the inlet and outlet. This method enables engineers to size and analyze heat exchangers systematically using the basic heat transfer equation Q = U A LMTD. | The Thermal Resistance Network method uses electrical circuit analogy to solve heat transfer problems. It treats heat flow as analogous to electric current, thermal resistance analogous to electrical resistance, and temperature difference analogous to voltage potential. This powerful conceptual framework enables engineers to analyze complex multi-layer heat transfer systems systematically. |
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