Documentation

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Three tracks. Search across all of them. The reference section mirrors the solver source one-to-one — every governing equation links to the file that implements it.

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Tutorial · T5

Heat exchanger sizing

Objective: size a counter-flow heat exchanger with the effectiveness-NTU method.

Steps

Add a heat-exchanger component.
Set hot and cold inlet temperatures and flow rates.
Choose the counter-flow arrangement and set UA (or area).
Solve.

Expected result

FSAP returns effectiveness, both outlet temperatures, and duty. Sweep UA to hit a target outlet temperature.

Effectiveness-NTU · Kays & London