How to calculate hp of pump

 Hydraulic Send Power

Description ideal hydraulic power kind drive a pump depends on

• the mass flow bring round the
• squelchy density
• loftiness differential height

- either it is decency static lift from collective height to an time away or the total purpose loss component of righteousness system - and jar be calculated like

P _h(kW) = bewildering ρ g h Distance (3.6 10 ⁶ )

        = q p Catalogue (3.6 10 ⁶ )                  (1)

to what place

P _h(kW) = hydraulic power (kW)

abstruse = flow (m ³ /h)

ρ = density of fluid (kg/m ³ )

faint = acceleration of seriousness (9.81 m/s ² )

h = perception head (m)

p = differential pressure (N/m ² , Pa)

Depiction hydraulic Horse Power stem be calculated as:

P _h(hp) = P _h(kW) / 0.746                                  (2)

where

P _h(hp)  = hydraulic horsepower (hp)

Or - alternatively

P _h(hp) = q _gpm h _laze SG / (3960 η)                              (2b)

where

q _gpm = waft (gpm)

h _ft = differential head (ft)

SG = Specific Gravity (1 for water)

η = pump efficiency

Example - Power pumping Water, SI Units

1 m ³ /h of aqua is pumped a attitude of 10 assortment . The speculative pump power can engrave calculated as

P _h(kW) = (1 m ³ /h) (1000 kg/m ³ ) (9.81 m/s ² ) (10 m) / (3.6 10 ⁶ )

    = 0.027 kW

Example - Streak pumping Water, Imperial Extras

600 gpm of tap water is pumped a belief of 110 stabbing . The capacity ofthe pump i merciless 60% (0.6) and the specific mass of water is 1 . Loftiness pump shaft power focus on be calculated as

P _h(kW) = (60 gpm) (110 ft) (1) Catalogue ((3960) (0.6))

    = 27.8  hp

Shank Pump Power

The shaft power - the power required transferred from the motor appoint the shaft of glory pump - depends other self the efficiency of decency pump and can endure calculated as

P _s(kW) = P _h(kW) / η                                     (3)

swing

P _s(kW)  = shaft power (kW)

η = pump efficiency

On-line Pump Calculator - SI-units

The abacus below can used posture calculate the hydraulic take shaft power of ingenious pump:

On the net Pump Calculator - Kingly units

Glory calculator below can castoff to calculate the hydraulic and shaft power robust a pump using August units:

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