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In thermal engineering, the logarithmic mean temperature difference (LMTD) is used to determine the temperature driving force for heat transfer in flow systems, most notably in heat exchangers. The LMTD is a logarithmic average of the temperature difference between the hot and cold feeds at each end of the double pipe exchanger.
Using LMTD simplifies the analysis of heat exchangers by providing a single temperature difference value that can be used in design calculations. In practical applications, LMTD can be used alongside overall heat transfer coefficients to determine the required surface area of a heat exchanger.
Arithmetic Mean Temperature Difference in Heat Exchangers - AMTD - and Logarithmic Mean Temperature Difference - LMTD - formulas with examples - Online Mean Temperature Calculator. According to Newton's Law of Cooling heat transfer rate is related to the instantaneous temperature difference between hot and cold media.
24 Σεπ 2024 · LMTD takes into account both the entering and exiting fluid temperatures to provide a more accurate representation of the average temperature difference. The LMTD is used in heat exchanger design to determine the rate of heat transfer and the amount of surface area required for the exchanger.
The Log Mean Temperature Difference (LMTD) is a mathematical formula used in the design of heat exchangers to calculate the temperature difference between the hot and cold fluid streams at different points in the exchanger.
The logarithmic mean temperature difference (LMTD) is a measure used in heat exchangers to determine the temperature driving force for heat transfer between two fluids.
The log mean temperature difference (LMTD) is a measure used in heat exchangers to determine the average temperature difference between the hot and cold fluids at both ends of the heat exchanger.
