LMTD for Heat Transfer Calculation
Logarithmic Mean Temperature Difference
- It is the mean temperature calculated to find the overall average heat transfer coefficients
- LMTD is a logarithmic average of the temperature difference (ΔTm) between the hot and cold feeds of the heat exchanger
- Understand the inlet and outlet of hot and cold fluid of the heat exchanger
Calculation of LMTD for Heat Exchanger
- Calculate the log mean temperature difference (ΔTm) for the following two possible arrangements
- Parallel or counter Flow
- Counter Flow
- the Temperature differences () based on the types of heat exchangers
- Calculate the Logarithmic mean temperature difference (LMTD)