DME 예혼합 압축착화 엔진에서 수소의 영향The Effects of Hydrogen on DME HCCI Combustion

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 164
  • Download : 0
The aim of this paper is controlling ignition timing and load in homogeneous charge compression ignition (HCCI) combustion with low cetane number fuel, hydrogen. Homogeneous charge compression ignition (HCCI) combustion is an advanced combustion technology that achieves higher thermal efficiency and lower NOx emissions than that of conventional combustion system. Dimethyl ether (DME), which has been researched widely as the most attractive alternative fuel of diesel, is attractive for HCCI combustion because of the easy evaporation. In this study, the single cylinder DME engine operated with a direct injection system has been used to investigate combustion processes and emissions of DME HCCI with a premixed hydrogen supply. The experiment was carried out under various engine speed and fraction rates of hydrogen. As a result, the increase of fraction rates of hydrogen retard the DME ignition timing and eliminated the knocking during high engine speed condition. IMEP was increased with increase of fraction rates of hydrogen by 30%. 40% of the fraction rates of hydrogen resulted in misfiring. The NOx emission was reduced by increasing the fraction rates of hydrogen, but HC emission was increased.
Publisher
한국자동차공학회
Issue Date
2007-03
Language
Korean
Citation

한국자동차공학회 논문집, v.15, no.2, pp.15 - 21

ISSN
1225-6382
URI
http://hdl.handle.net/10203/205470
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0