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# What is HP in fluid mechanics?

## What is HP in fluid mechanics?

Fluid Power Formulas

 Fluid Motor Speed – n Speed (RPM) = (231 × GPM) / Disp. (in.)3 Fluid Motor Horsepower – HP HP = Torque (in. lbs.) × rpm / 63025 Pump Formulas Variable Word Formula w/ Units Pump Output Flow – GPM GPM = (Speed (rpm) × disp. (cu. in.)) / 231

How do you calculate fluid flow power?

Summary. Power in fluid flow is given by the equation (P1+12ρv2+ρgh)Q=power, ( P 1 + 1 2 ρ v 2 + ρ gh ) Q = power , where the first term is power associated with pressure, the second is power associated with velocity, and the third is power associated with height.

### What is HP energy equation?

1 Horsepower (Hp) = 746 Watt or 1 Kw = 1.34 Hp. 7.2 Energy Equation: General Form. u: internal energy. Shaft and Flow Work.

How do you convert flow to power?

Power Gained by Fluid from Pump or Fan

1. Power Gained by Fluid. The power gained by the fluid from a pump or fan can be expressed as: P = m w (1) where. P = power (W)
2. Specific Work. Specific work – w – can be expressed: w = g h (2) where. h = head (m)
3. Mass Flow Rate. Mass flow rate – m – can be expressed: m = ρ Q (3) where.

#### What is the difference between BHP and HP?

The horsepower hp is the output power of a mechanical or electrical system, whereas the brake horsepower bhp is the output power of the engine. The hp is measured for determining the efficiency of the entire system, whereas the bhp is measured for determining the efficiency of the engine only.

What is the formula for GPM?

The formula GPM = (GPA x MPH x W)/5,940 has several constants: square feet per acre, feet in a mile, and time measured in minutes. MPH x W provides the square feet of coverage in an hour. You’re looking for gallons per minute.

## How do you calculate power from flow and pressure?

For instance the calculation of power output. Hydraulic power is defined as flow multiplied by pressure. The hydraulic power supplied by a pump is: Power = (P x Q) ÷ 500 – where power is in kilowatts [kW], P is the pressure in bars, and Q is the flow in litres per minute.

How do you convert GPM to RPM?

The most accurate way to convert GPM to RPM is to do a test. Run the pump at 1,000 RPM, for example. Once 1,000 RPM is reached, direct the fluid being pumped into a measuring container for one minute. This will give you the accurate GPM measure of your pump at 1,000 RPM.