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Fan Performance Calculator
Calculate new fan performance using Fan Laws (RPM scaling)
Instructions: Enter the initial operating conditions ($CFM_1$, $SP_1$, $P_1$, $RPM_1$) and the new target speed ($RPM_2$) to calculate the new fan performance.
Initial Operating Point
New Operating Point
Calculation Results
⚠️ For HVAC and mechanical engineering reference only. Based on standard fan affinity laws assuming constant fan size and air density.