由于燃气性能差别较大不同气体燃料的成分和抗爆震性差别较大直接影响燃气机的结构、动力性指标和燃料经济性指标。

　　Due to significant differences in gas performance, the composition and shock resistance of different gas fuels directly affect the structure, power performance indicators, and fuel economy indicators of gas engines.

　　因此燃气机的性能指标也相差很大燃用以甲烷为主要成分的燃料热值高且抗爆震性好。

　　Therefore, the performance indicators of gas engines also vary greatly. Fuels mainly composed of methane have high calorific value and good resistance to detonation.

　　燃用非甲烷成分的燃料燃气机的性能较差。

　　The performance of fuel gas engines that use non methane components is poor.

　　燃用各种燃气的燃气机在结构和性能上差异较大各种燃气机按燃烧气体燃料的不同可以分为天然气机、沼气机、瓦斯机、含氢燃气发动机等。瓦斯机根据甲烷含量分为高浓度 （甲烷含量大于25％ ）和低浓度瓦斯机 （甲烷含量小于 25％ ）含氢燃气发动机根据氢气含量分为高含氢和低含氢燃气发动机通常含氢量大于 20％的焦炉煤气机、兰炭气机为高含氢燃气发动机而含氢量小于 20％的油母页岩气机、发生炉煤气机、秸秆气机则为低含氢燃气发动机。

　　Gas engines that burn various types of gas have significant differences in structure and performance. Gas engines can be divided into natural gas engines, biogas engines, gas engines, hydrogen containing gas engines, etc. according to the different combustion gas fuels. Gas engines are divided into high concentration (methane content greater than 25%) and low concentration (methane content less than 25%) based on methane content. Hydrogen containing gas engines are divided into high hydrogen and low hydrogen gas engines based on hydrogen content. Coke oven gas engines with hydrogen content greater than 20%, orchid charcoal gas engines are high hydrogen gas engines, while oil shale gas engines with hydrogen content less than 20%, generator gas engines, and straw gas engines are low hydrogen gas engines.

　　燃气发电机组机的发电效率通常在 30％ ～40％之间比较常见的机型一般可以达到 35％。

　　The power generation efficiency of gas generator sets is usually between 30% and 40%. Common models can reach up to 35%.

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