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Rohan Homkar, profile picture
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Application of solar energy for sterling engine

This document discusses a student project to design a solar sterling engine system. It begins with an introduction to the need for electricity and various energy sources. It then describes how solar energy and sterling engines work at a high level. The key activities of the project are outlined as selecting the energy conversion method, designing a solar parabolic collector, choosing a sterling engine type, manufacturing and testing the engine components, and concluding with results. The document provides background information on solar energy and sterling engines to support the design of the student project.

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Application of solar energy for sterling engine Group members: Anoop S. Singh Rohan M. Homkar 9664346434 Rahul N. Kekan Rajesh A. Narlawar Sunil O. Bambal
Need and importance of electricity Education and domestic use Pumps and industrial drives medical usage lighting locomotives
Conventional energy sources  Thermal power plant •Coal fired •Oil fired Non- conventional energy sources  Solar energy  Wind Energy  Tidal Energy  Gas turbine power plant  Geothermal  Captive power plant  Biomass
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. 2. Isothermal Expansion.  absorbing heat from the hot source. Constant-Volume (isochoric) heat-removal.  3. The gas is passed through the regenerator, where it cools transferring heat to the regenerator for use in the next cycle. 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 engine Beta 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 Parabolic solar trough ENERGY CONVERSION DEVICE Sterling engine COLD ZONE Ambient conditions
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