경유-천연가스 이종연료 엔진의 저부하 영역에서 혼합기 형성을 통한 배기배출 저감 Emission Reduction by Mixture Formation in a Diesel-Natural Gas Dual-Fuel Engine at Low Loads

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A mixture preparation strategy was proposed and evaluated in a diesel-natural gas dual-fuel engine to reduce hydrocarbon (HC) and carbon monoxide (CO) emissions under low load conditions. An experimental investigation was conducted in a single-cylinder compression-ignition engine. Natural gas was supplied with air during the intake stroke, and diesel was injected directly into the combustion chamber during the compression stroke. First, effects of diesel start of energizing (SOE) and natural gas substitution ratio on the combustion and exhaust gas emissions were analyzed. Based on the results, the mixture preparation strategy was established. A low natural gas substitution ratio and a high exhaust gas recirculation (EGR) rate were effective in reducing the HC and CO emissions.
Publisher
한국액체미립화학회
Issue Date
2019-12
Language
Korean
Citation

한국액체미립화 학회지, v.24, no.4, pp.194 - 202

ISSN
1226-2277
DOI
10.15435/JILASSKR.2019.24.4.194
URI
http://hdl.handle.net/10203/271406
Appears in Collection
ME-Journal Papers(저널논문)
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