# How do you calculate the power consumption of a pump?

## How do you calculate the power consumption of a pump?

power consumption, output power, pump effective power

1. Velocity given to the fluid is: flow (m3/sec) / section (m²)= 1/0.1=0.1m/sec.
2. The dynamic pressure energy is equal to 0.5 x density(kg/m3) x velocity(m/sec)²= 0.5 x 1000 x 0.1²=5 pascals.
3. Output power Watt = flow (m3/sec) x dynamic Pressure (pascals) =1×5=5 watts.

How do you calculate power consumption?

How to Calculate Power Consumption in kWh?

1. Daily Power Consumption. Daily Power Consumption = Wattage rating x time in hours. 2000 Watts x 3 Hrs = 6000 Watts-Hour.
2. Monthly Power Consumption. Monthly Power Consumption = Wattage rating x time in hours. 2000 Watts x 3 Hrs x 30 days = 180000 Watts-Hour.
3. Annual Power Consumption.

How do I calculate flow rate?

Q=Vt Q = V t , where V is the volume and t is the elapsed time. The SI unit for flow rate is m3/s, but a number of other units for Q are in common use. For example, the heart of a resting adult pumps blood at a rate of 5.00 liters per minute (L/min).

### What is pump head calculation?

The pump head H=z+hw z is the height difference of the pumping height, that is, the water level from the inlet to the water surface at the exit. Hw is the head loss, including the Darcy formula or Xie Cai formula for calculating the head loss hf and the local head loss hw hf along the path.

What is current formula?

The current is the ratio of the potential difference and the resistance. It is represented as (I). The current formula is given as I = V/R.

How many kW is a kWh?

1 kW
1 kWh equals one hour of electricity usage at a rate of 1 kW, and thus the 2 kW appliance would consume 2 kWh in one hour, or 1 kWh in half an hour. The equation is simply kW x time = kWh.

## What is unit of flow rate?

The SI unit for flow rate is m3/s, but a number of other units for Q are in common use. For example, the heart of a resting adult pumps blood at a rate of 5.00 liters per minute (L/min). Flow rate is the volume of fluid per unit time flowing past a point through the area A.

What is normal flow rate?

Normal flow rate is 1 atmosphere (101.3 kPa) or 14.696 psia at 32 0F (0 0C). Actual flow rate is the actual volume of fluid that passes a given point based on given pressure and temperature of the process.

What are types of current?

There are two kinds of current electricity: direct current (DC) and alternating current (AC). With direct current, electrons move in one direction. Batteries produce direct current. In alternating current, electrons flow in both directions.

### What is Ohm’s law state?

Ohm’s law states that the current through a conductor is proportional to the voltage across the conductor. V=IR where V is the voltage across the conductor and I is the current flowing through it.

What is kWh formula?

The “kilowatt-hours” you see on your power bill expresses the amount of power that you consumed in a month. To calculate the kWh for a specific appliance, multiply the power rating (watts) of the appliance by the amount of time (hrs) you use the appliance and divide by 1000.

How to calculate the power of a pump?

Hydraulic power of the pump (kW). Shaft power of the pump (kW). Required power to the Motor (kW). Volumetric flow of fluid through the pump (m 3 /h). Density of the fluid being pumped (kg/m 3 ).

## How many Watts Does a water pump have?

To give you a rough estimate the average rated power of water pump is from 250 watts to 1500 watts. Smaller the water pump, less is the wattage, less is the power consumption, hence low is the discharge and head. If the rated power is given in horse power (hp) then convert it to watt by multiplying it with 746. (1 hp = 746 watt).

How to calculate the hydraulic power of water?

The hydraulic Horse Power can be calculated as: 1 m3/h of water is pumped a head of 10 m. The theoretical pump power can be calculated as The shaft power – the power required transferred from the motor to the shaft of the pump – depends on the efficiency of the pump and can be calculated as

What is the efficiency of a water pump?

Pump Efficiency is the ratio of pump input and output power. i.e Efficiency of the pump is the ratio water horse power to break horse power. The overall efficiency then becomes what is commonly called “wire-to-water” efficiency, which is expressed by the formula