پیمان داوری2025-05-21T07:55:48+03:30
1. Definition of Logarithmic Mean Temperature Difference (LMTD)
The logarithmic mean temperature difference is not an arithmetic average but a logarithmic one, used to calculate the temperature difference between two fluid streams in a heat exchanger where temperatures gradually change.
The general formula is:
ΔT1= temperature difference at the beginning of the path (e.g., hot fluid temperature minus cold fluid temperature at the inlet)
ΔT2 = temperature difference at the end of the path (e.g., hot fluid temperature minus cold fluid temperature at the outlet)
ln...
