Combustion and emissions performance of a HCCI engine fueled with DME and hydrogen blends - 文章详情页

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EI Scopus PKU CSCD

摘要：

DME　and　hydrogen　were　blended　with　air　in　intake　and　the　HCCI　combustion　was　realized.　The　speed　of　engine　was　hold　at　1400　r/min　and　the　mass　flow　rate　of　DME　was　ranged　at　2.6　and　3.5　L/min.　With　the　hydrogen　fraction　increasing,　the　excessive　air　coefficient　λ　was　reduced　until　the　engine　knocked.　The　result　showed　that　DME　blended　with　hydrogen　could　increase　the　peak　pressure,　heat　release　rate　and　BMEP.　The　peak　pressure　was　improved　26.4%　when　the　DME　flow　was　3.5　L/min.　In　the　emissions,　CO　and　HC　could　be　reduced,　and　CO　emission　was　only　20%~30%　of　the　original　data　after　hydrogen　enriched.　However,　NOx　emissions　increased　with　the　addition　of　hydrogen.

关键词：

Air intakes Combustion Hydrogen Hydrogen fuels Ignition Internal combustion engines Neutron emission

作者机构：

[ 1 ] [Liang, Chen]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Ji, Changwei]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Kong, Lingkai]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhu, Yongming]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Dai, Xiaoxu]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Fan, Boyuan]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

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chwji@bjut.edu.cn

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