Pmotor=Pηg⋅ηm⋅SFcap P sub motor end-sub equals the fraction with numerator cap P and denominator eta sub g center dot eta sub m end-fraction center dot cap S cap F ηgeta sub g = Gearbox efficiency (typically 0.92 to 0.96) ηmeta sub m = Motor efficiency (typically 0.88 to 0.95) SFcap S cap F
Calculating the required shaft power determines the motor sizing, gearbox selection, and structural support engineering. The Power Number ( Npcap N sub p The dimensionless Power Number ( Npcap N sub p
Verified industrial agitator designs conform to established geometric standards: Typically ranges from
The mixing Reynolds number determines the flow regime (laminar, transitional, or turbulent) inside the vessel: