Application of solar energy for sterling engine

Group members:

Anoop S. Singh Rohan M. Homkar 9664346434Rahul N. KekanRajesh A. NarlawarSunil O. Bambal

Need and importance of electricity

Education and domestic use medical usage

Pumps and industrial drives lighting locomotives

Non- conventional energy sources

Solar energy

Wind Energy

Tidal Energy

Geothermal

Biomass

Conventional energy sources

Thermal power plant

• Coal fired

• Oil fired

Gas turbine power plant

Captive power plant

Solar energy

Unlimited source of energy

Economical usage

Available in ample quantity

Renewable energy source

Free from pollution

Parabolic solar trough collector

Parabolic trough

Sterling cycle• The idealized Sterling cycle consists of four thermodynamic processes acting

on the working fluid:1. Isothermal Expansion.

absorbing heat from the hot source.2. Constant-Volume (isochoric) heat-removal.

The gas is passed through the regenerator, where it cools transferring heat to the regenerator for use in the next cycle.

3. Isothermal Compression. The compression space and associated heat

exchanger are maintained at a constant low temperature so the gas undergoes near-isothermal compression rejecting heat to the cold sink

4. Constant-Volume (isochoric) heat-addition. The gas passes back through the regenerator where it

recovers much of the heat transferred in 2, heating up on its way to the expansion space.

Selection of sterling engine construction

A Sterling engine is a heat engine

external combustion engine,

cyclic compression and expansion of air

Can be used as prime mover

Low differential temperature requirements

Alpha type sterling engine

Alpha type Sterling engine.

There are two cylinders.

The expansion cylinder (red) is maintained at a high temperature

the compression cylinder (blue) is cooled.

The passage between the two cylinders contains the regenerator

Beta type sterling engineBeta Type Sterling Engine.

There is only one cylinder, hot at one end and cold at the other.

A loose fitting displacer shunts the air between the hot and cold ends of the cylinder.

A power piston at the end of the cylinder drives the flywheel

Gamma type sterling engine

a gamma configuration Sterling engine design

Pink – Hot cylinder wall

Dark grey – Cold cylinder wall (with coolant inlet and outlet pipes in yellow)

Dark green – Thermal insulation separating the two cylinder ends

Light green – Displacer piston

Dark blue – Power piston

Light blue – Linkage crank and flywheels

Principle of sterling engine

HOT ZONE

ENERGY CONVERSION

DEVICE

COLDZONE

Sterling engineParabolic solar trough

Ambient conditions

Analogy

Key activities in project

1. Selection of energy conversion methodology

2. Selection of solar collector

3. Design of solar parabolic collector

4. Selection of sterling engine

5. Design of sterling engine components

6. Feasibility study about designs and project

7. Manufacturing and commissioning of engine components

8. Trial run of engine and conclusion

Conclusion

Application of eco-friendly solar energy

Use of beta type construction of sterling engine

scheduling and planning to complete project in time

Thank you