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  1. vesterholt

    Fan and Pump Curves vs. Affinity Laws

    I have always wondered why fan curves don't appear to be consistent with the affinity laws that we are taught. For example. We are taught that: P2/P1 = (RPM2/RPM1)^2 = (CFM2/CFM1)^2 This would mean that fan curves should be perfect quadratic squares and all look like parabolas. However, we...

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