ジメチルエーテルの予混合圧縮着火に及ぼす水素および一酸化炭素の影響(熱工学,内燃機関,動力など)

概要

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The authors have proposed a new HCCI combustion engine system fueled with DME and methanol-reformed gas (MRG) in the previous research. The research has shown high thermal efficiency over a wide range of the operable equivalence ratio in the system. MRG effectively controls the timing of the second stage heat release by the high temperature oxidation reactions of DME to expand the operable range. The MRG consists of H_2 and CO. However, the effects of the two on the ignition of DME have not been separated yet. This research experimentally investigated each influence of H_2 and CO on HCCI of DME. To separate the effects of H_2 and CO on the ignition, HCCI combustion of DME/H_2 and DME/CO are compared. The results of the analysis show that both H_2 and CO have the effect of retarding the ignition. The results also show that H_2 more largely affects the ignition in HCCI of DME than CO does.
一般社団法人日本機械学会の論文
2004-05-25