船用低速二冲程氢/柴油发动机数值模拟分析
Numerical simulation analysis of Marine low-speed two-stroke hydrogen/diesel engine
氢气作为零碳燃料是尽快使国际航运的温室气体（GHG）排放量达到峰值的最现实可行途径。论文以6EX340EF型超长冲程大功率低速船用柴油机为基础机型，设计得到预燃室射流点火的氢/柴油双燃料机，针对不同压缩比、引燃柴油量和有效压缩比对发动机进行三维数值模拟。结果表明：在喷油压力为100MPa，过量空气系数为2.5时，随着压缩比的升高，NOx排放和热效率增加；引燃柴油量增加，NOx排放增加，但指示热效率呈现先增加后降低的趋势；增加有效压缩比时，指示热效…查看全部>>
Hydrogen as a zero-carbon fuel is the most realistic and feasible way to peak greenhouse gas (GHG) emissions from international shipping as soon as possible. Based on 6EX340EF ultra-long stroke high-power low-speed Marine diesel engine, a hydrogen/diesel dual-fuel engine with pre-combustion chamber jet ignition is designed. Three-dimensional numerical simulation is carried out for the engine with different compression ratio, ignition diesel amount and effect…查看全部>>
蒋庆丽;曲文静;夏雨;卢耀;冯立岩;
TK46+3
hydrogen thermal efficiency compression ratio the proportion of diesel energy effective compression ratio cylinder temperature
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