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Improvement of performance and exhaust emission characteristics in gas engine by heat release control

✍ Scribed by Shinsuke Ono; Yoshinori Hirayama; Hideaki Kawano; Mitsuo Nakaya

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 330 KB
Volume: 23
Category: Article
ISSN: 0389-4304
DOI: 10.1016/s0389-4304(01)00148-5

No coin nor oath required. For personal study only.

✦ Synopsis

By either multiple direct injections coupled with an individual ignition or multiple ignitions in a premixed charge, the combustion process can positively be changed. The experimental results show that the heat release rate is changed widely depending on the flame ignition timing, and the possibility to bring about a preferable combustion could be shown. Numerical simulations of the cycle performance are carried out using a specially developed numerical simulator, involving the multi-zone combustion models. The results of the calculation using the multi-zone model show that a significant amount of NO x appears in the zone formed in the early combustion stage.

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