Stirling Engines for Gas Fired Micro-Cogen and Cooling
DOI:
https://doi.org/10.13052/dgaej2156-3306.1215Abstract
This article describes the design and performance of free-
piston Stirling engine-alternators particularly suited for use
as natural gas fired micro-cogen and cooling devices. Stirling
based cogen systems offer significant potential advantages
over internal combustion engines in efficiency, life, noise and
emissions.
The ability of Stirling machines to maintain higher effi-
ciencies at lower power levels than internal combustion en-
gines significantly expands the potential market for micro-
cogen. System cost reduction and electric prices higher than
the U.S . national average will have a far greater effect on com-
mercial success than any further increase in Stirling engine
efficiency. There exist niche markets where Stirling based
cogen systems are competitive.
Machines of this design are being considered for produc-
tion in the near future as gas-fired units for combined heat
and power in sufficiently large quantities to assure competi-
tive prices for the final unit.
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