A12 α^+型スターリングエンジンの性能特性(スターリングエンジン及び関連要素と応用システム(4))

概要

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We are now developing a Stirling engine that adopts a new concept, the α^+-type mechanism. Note that the α^+-type mechanism is suitable for low-temperature-difference Stirling engines and the α^+-type engine has a displacer consisting of two pistons that are connected via rods. Therefore, it is possible to use a regenerator with a sufficiently large area within a small range of temperature difference and to suppress the load applied to the crankshaft. The α^+-type engine is most effectively applied to power generation using solar heat or combustion heat from a wood biomass because the engine can be driven by indirect heating using 300 ℃ thermal oil. We report the performance characteristics of the α^+-type Stirling engine, from our experimental results for a 10-kW-class test engine that we designed and manufactured. Currently, in terms of engine performance, we have attained a record power output of 1040 W/600 min^<-1> at a buffer pressure of 600 kPa.
社団法人日本機械学会の論文
2008-11-05