Analysis of CO Emission Sources in Diesel Combustion (Second Report)

ディーゼル燃焼のCO 排出要因解析(第2報)

In-cylinder CO distribution in diesel combustion was measured using two-photon excitation CO-LIF. The results obtained with CO-LIF were used to validate the accuracy of a numerical simulation. The measured location of the dense CO gas cloud, as obtained by the LIF measurement, agreed closely with the results of the simulation. The major source of the CO emissions under low-load conditions is the over-diffusion of the pilot sprays, while that under high-load conditions is the shortage of oxygen in the rich regions at the flame front.ディーゼル燃焼の筒内CO分布を2光子励起CO-LIF法で計測し、その計測結果を用いて数値計算の計算精度を検証した.バルクなCO分布が計測と数値計算で一致を示した.CO排出要因は、低負荷時はパイロットの過拡散、高負荷時は火炎先端リッチ部の酸素不足が主要因であった.

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  • Accession Number: 01671312
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jun 1 2018 8:42AM