船用柴油机进气湿度对NO_X生成量影响的计算及结果分析

Calculation of Amount of NO_x Affected by Marine Diesel Engine Inlet Air Humidity and Result Analysis

船舶柴油机作为水路运输的主要动力，减少其有害排放，是目前航运界关注的重要问题之一。文章介绍了当前国内外降低NOx排放方面的最新成果，并通过数值计算得出扫气增湿对船舶柴油机NOx生成量的影响。通过计算研究表明：柴油机进气加湿，降低了缸内燃烧的温度，可减缓NOx的生成速度。

It is one of the most important objects to reduce the harmful emissions from marine diesel engines, which are always considered as the main power of the transportation on water. The paper mainly introduces the latest technologies to reduce the amount of NOx at home and abroad. It is pointed out that increasing the humidity of the inlet air will affect the amount of NOx. The simulation calculating results show that the humidity of the inlet air can reduce the temperature in the cylinder, thus the speed of NOx producing decreases.