Learn How to Calculate Arithmetic Mean Temperature Difference - Tutorial

How to Calculate AMTD - Definition, Formula, and Example.

Definition:

Arithmetic Mean Temperature Difference is the difference between the average temperatures of hot and cold fluids. This method is used to understand heat transfer in systems such as heat exchangers.

Formula:

AMTD = ((HTs + HTe)/2) - ((CTs + CTe) /2) Where, HTs and HTe denotes the start and end temperature of Hot Stream. CTs and CTe denotes the start and end temperature of Cool Stream.
Example :
Given,

HTs = 60HTe = 80CTs = 0CTe = 20

To Find,

Arithmetic Mean Temperature Difference

Solution:

Substitute the values of HTs, HTe and CTs, CTe in the above formula AMTD = ((HTs + HTe)/2) - ((CTs + CTe) /2) = ((60+80)/2) - ((0+20)/2) = (140/2) - (20/2) = 70 - 10 = 60 °C

Learn how to calculate the Arithmetic Mean Temperature Difference (AMTD) in this tutorial, given with the definition, formula and example.

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