COGENERATION PLANT WITH STIRLING ENGINE OPERATING ON LOCALLY AVAILABLE FUEL Russian patent published in 2007 - IPC F02G1/43 F02G5/02 

FIELD: power engineering.

SUBSTANCE: invention relates to cogeneration plants with Stirling engines designed for simultaneous production of electric energy and heat. Proposed cogeneration plant includes Stirling engine with electric generator fitted on one shaft, Stirling engine cooling system including pump an heat exchange-cooler through which air feed main line passes, external heat supply system with heat exchanger-recovering unit of heat of waste gases and heat exchanger of preliminary heating through which external heat supply system is coupled with cooling system of Stirling engine, and exhaust gas main line. Plant is furnished additionally with gas generator providing production of generator gas from different types tires of locally available fuel, generator gas main line connecting gas generator with combustion chamber of Stirling engine, main line for partial return of exhaust gases into combustion chamber of stirling engine, pump in external heat supply system providing flow of heat carrier in succession through preliminary heating heat exchanger and heat exchanger-recovering unit of heat of waste gases. Wood, peat and oil shale can be used as locally available fuel.

EFFECT: possibility of operation of different locally available fuels such as wood, peat, oil shale, etc, increased service life of engine, simplified design of system to convey heat from engine to external consumers.

1 dwg