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`AMTD = ( P_"in" + P_"out" )/2 - ( S_"in" - S_"out" )/2`
Enter a value for all fields
The Arithmetic Mean Temperature Difference calculator computes the mean temperature difference based on the temperatures of the primary and secondary inlets and outlets of a system.
INSTRUCTIONS: Choose units and enter the following:
- (Pin) Primary Inlet Temperature
- (Pout) Primary Outlet Temperature
- (Sin) Secondary Inlet Temperature
- (Sout) Secondary Outlet Temperature
Arithmetic Mean Temperature Difference (AMTD): The calculator returns the mean in degrees Celsius. However, however this can be automatically converted to compatible units via the pull-down menu.
The Math / Science
The formula for the Arithmetic Mean Temperature Difference is:
AMTD = (Pin + Pout)/2 - (Sin-Sout)/2
where:
- AMTD = Arithmetic Mean Temperature Difference
- Pin = Primary Inlet Temperature
- Pout = Primary Outlet Temperature
- Sin = Secondary Inlet Temperature
- Sout = Secondary Outlet Temperature
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