20408 圧縮比変化に対するDME-HCCI燃焼の実験的研究(OS3 エンジン燃焼と排気浄化)

概要

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The HCCI is a promising combustion process for simultaneously obtaining low NOx and PM emissions and high thermal efficiency. With the engine technology currently available, however, the HCCI operating region is limited and compression ignition timing is difficult to control. One side, DME has attracted interest as a potential alternative fuel for compression ignition engines. This fuel has a negative temperature coefficient region in which the ignition delay is not shortened even if the compression-induced temperature rises. DME has characteristics which is producing multi-stage heat release through both low and high-temperature combustion. This paper discusses the relationship between the compression ratio and these observed tendencies.
社団法人日本機械学会の論文
2005-03-17