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PI Database - OSIsoft

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Example: Heat Exchanger Performance Monitoring<br />

CALCULATION ALGORITHM<br />

Heat Exchanger Key Performance Indicator:<br />

Overall heat transfer coefficient<br />

U =<br />

RULE: IF the heat transfer coefficient is decreasing,<br />

THEN the Heat Exchanger FOULING !!!<br />

Cleaining is required!<br />

Q<br />

A x Corrected LMTD<br />

Calculation Steps:<br />

11 Empowering Business in Real Time © Copyright 2010, <strong>OSIsoft</strong> LLC All rights Reserved.

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