Impact of the Low-temperature Oxidation Reactions during Mixture Formation to Ignition


Interactions of gas parcels with different histories of composition, temperature and reaction during the mixture formation in spray combustion may either enhance or inhibit the ignition depending on the cases. In this study, the impact of the history of low-temperature oxidation has been investigated by using zero-dimensional kinetic simulations with a multistage adiabatic mixing model developed to mimic the pilot injection and dual-fuel combustion. The results can be well interpreted in terms of the evolution of chain carrier species in the low-temperature oxidation and the occurrence of cool flames with the formation of the inhibitive intermediate such as formaldehyde.噴霧燃焼の混合気形成過程において,温度や反応履歴の異なる気体の混合は着火に影響を与える.本研究では低温酸化履歴の着火への影響を,予備噴射などを模擬する多段階断熱混合モデルによる0 次元反応計算により検討した.結果は低温酸化による連鎖担体の増加と着火阻害成分を生成する冷炎の発生によって説明された.


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  • Accession Number: 01666796
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jan 31 2018 3:19PM