Vacuum Pump Capacity Calculation Xls [portable]
[ S_required = \fracQ_totalP_base ]
is essential for reliable system performance and energy efficiency. While the underlying mathematics—Gaede's equation, conductance formulas, and outgassing rates—can be complex, a well-designed Excel spreadsheet simplifies the process by: vacuum pump capacity calculation xls
Seff=Qleak+QprocessPcap S sub e f f end-sub equals the fraction with numerator cap Q sub l e a k end-sub plus cap Q sub p r o c e s s end-sub and denominator cap P end-fraction Estimated by the pressure rise method: Process Load ( Qprocesscap Q sub p r o c e s s end-sub [ S_required = \fracQ_totalP_base ] is essential for
*The 1.5 factor is a recommended safety margin to account for system resistance and minor leaks. Compare required speed (from Step 3) to available
Use VLOOKUP or INDEX(MATCH) to interpolate speed at your target pressure. Compare required speed (from Step 3) to available speed from any pump catalog.
Vacuum Pump Capacity Calculation XLS: A Guide to Sizing and Optimization