What Is The Working Principle Of Centrifugal Pump?

Why do we use centrifugal pump?

Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow.

The reverse function of the centrifugal pump is a water turbine converting potential energy of water pressure into mechanical rotational energy..

What are the three types of pumps?

Pumps can be classified by their method of displacement into positive-displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps and valveless pumps. There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps.

What is the efficiency of centrifugal pump?

Many medium and larger centrifugal pumps offer efficiencies of 75 to 93 percent and even the smaller ones usually fall into the 50 to 70 percent range. Large AC motors, on the other hand, approach an efficiency of 97 percent, and any motor—ten horsepower and above—can be designed to break the 90 percent barrier.

Why positive displacement pump is called positive?

A positive displacement pump makes a fluid move by trapping a fixed amount and forcing (displacing) that trapped volume into the discharge pipe. … A positive displacement pump must not operate against a closed valve on the discharge side of the pump, because it has no shutoff head like centrifugal pumps.

What is centrifugal pump and how it works?

A centrifugal pump is a mechanical device designed to move a fluid by means of the transfer of rotational energy from one or more driven rotors, called impellers. Fluid enters the rapidly rotating impeller along its axis and is cast out by centrifugal force along its circumference through the impeller’s vane tips.

Where is centrifugal pump used?

Centrifugal pumps have numerous applications in various industries. They are used often in oil refineries and power plants. They are also the pump of choice for municipal water applications. They are used to move the general water supply from the pressure main in cases where a little or no suction lift is required.

What are the parts of centrifugal pump?

Some of the most common components found in centrifugal pumps are:Pump main housing.Impeller.Impeller seal.Impeller bearings.Motor.Coupling.Shaft-drive.Shaft seal.More items…

Which motor is used in centrifugal pump?

induction motorThe 3-phase induction motor receives 240 V ac from inverter for its operation to which the pump load constant is connected. … … To estimate the proportionality constant, K for the selected centrifugal water pump, its torque-speed characteristics [14] is used as, …

What is difference between pump and motor?

Difference between Pump and Motor The main difference between motor and pump is that a motor is a device that converts electricity to mechanical energy which results in motion, whereas a pump is a device that is used to transfer a fluid from one place to another.

What is the working principle of water pump?

The working principle of a water pump mainly depends upon the positive displacement principle as well as kinetic energy to push the water. These pumps use AC power otherwise DC power for energizing the motor of the water pump whereas others can be energized other kinds of drivers like gasoline engines otherwise diesel.

What are the advantages of centrifugal pump?

The biggest advantage of centrifugal pumps is their aforementioned simplicity. They don’t require any valves, or many moving parts. This makes them easy to produce with many different materials. It also allows them to move at high speeds with minimal maintenance.

What are the main parts of reciprocating pump?

The main components of reciprocating pump are as follows:Suction Pipe.Suction Valve.Delivery Pipe.Delivery Valve.Cylinder.Piston and Piston Rod.Crank and Connecting Rod.Strainer.More items…

Which pump is more efficient?

In general, a reciprocating pump is more efficient than a centrifugal pump. Reciprocating machines are generally applied on low-flow/high-head service. Centrifugal pumps can have efficiencies as low as 40 percent on low-flow/high-head service.

What are the advantages and disadvantages of centrifugal pump?

ADVANTAGES AND DISADVANTAGES OF CENTRIFUGAL PUMPS. – The advantages of centrifugal pumps include simplicity, compactness, weight saving, and adaptability to high-speed prime movers. One disadvantage of centrifugal pumps is their relatively poor suction power.