Study of Mechanism Producing Multi-Stage Heat Release in Supercharged HCCI Using Blended Fuel (Second Report)

混合燃料を用いた過給HCCI における多段熱発生機構の研究(第2報)

In this study, the effects of the fuel type on multi-stage heat release characteristics in a supercharged Homogeneous Charge Compression Ignition (HCCI) engine were investigated. These aspects were investigated by making spectroscopic measurements of in-cylinder gas, Fourier-transform infrared spectroscopy (FTIR) analysis of intermediate products and by conducting chemical kinetic analyses. Blended fuels of dimethyl ether (DME) and methane and DME and propane were used as the test fuel. The results showed that the blended fuel of DME and methane produced two-stage primary combustion, depending on the operating conditions, which had the effect of moderating combustion. With the blended fuel of DME and propane, main combustion was occurred in single-stage.過給と燃料組成が,HCCIにおける主燃焼の多段熱発生挙動に及ぼす影響とそのメカニズムについて,過給HCCI実験と反応解析によって調べた.本報では,DME/メタン混合燃料とDME/プロパン混合燃料が主燃焼多段熱発生に及ぼす影響を,実機筒内の分光測定で明らかにし,そのメカニズムを反応解析で調べた.

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  • English
  • Japanese

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  • Accession Number: 01673518
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jan 31 2018 3:24PM