RECIPROCATING PUMP

Positive Displacement Pump

Positive Displacement pumps apply pressure directly to the liquid by a reciprocating piston, or by rotating members.

Uses:

1.Can handle shear sensitive liquid.
2.Use for high pressure application
3.Use for variable viscosity applications.

Types:

• Reciprocating pump
• Rotary pump

Reciprocating Pump

In Reciprocating pumps, the chamber is a stationary cylinder that contains a piston or plunger.

Types-

• Piston Pump 
• Plunger Pump 
• Diaphragm Pump

Piston Pump

1.Transmission of fluids or gases under pressure.
2.Power consumption is low.
3.Ensure maximum safety.

Plunger pump

1.Have high efficiency.
2.Capable of developing very high pressures.
3.Low and easy maintenance

Diaphragm Pump

1.flexible diaphragm is used (rubber, thermo-plastic, metal).

2. Can be used to make artificial hearts.

3. Can handle highly viscous liquids.

4.Can handle toxic or corrosive liquids.

5. 97% efficient.

MECHANICAL PROPERTIES OF MATERIALS

The properties of materials when subjected to stresses and strains are called “mechanical properties”.

Components of Hydro Electric Power Plant

Hydro electric power plant:

• Plant from which hydroelectricity is produced
• Hydroelectricity is the term referring to electricity generated by hydropower
• The production of electrical power through the use of the gravitational force of falling or flowing water. 
• It is the most widely used form of renewable energy.

HYDROPOWER GOVERNERS

What is a Governor?

• An attachment to a machine for automatic control or limitation of speed /A device giving automatic control (as of pressure or temperature or speed).
• A Governor is a device which controls the energy source to a prime mover to control its power for a specific purpose.
• Advanced governors are often referred to as Control Systems.
• Examples: Electronic Load Controller (ELC)and Induction generator controller (IGC) in water turbines.

Types of Free Energy Pump

• Papa Pump:

The innovative Papa water pump uses a unique aerofoil shaped valve and the latest engineering composite materials, resulting in a small, light, durable and flexible pump. With no mechanical moving parts, the Papa water pump is more efficient, easier and cheaper to maintain and much more cost effective than traditional ram and alternative water powered pump designs.

SERIES AND PARALLEL COMBINATION PUMP

Why do we need to connect number of pump?

A single pump may be insufficient to produce the performance required. Combining two pumps increases the pumping capacity of the system.

Energy losses and efficiency of centrifugal pump

Key Parameter for determining efficiency

• Flow
• Head
• Power