柴油硫含量对发动机排放性能影响的研究

在一台直喷式涡轮增压柴油机上分别燃用4种不同硫含量的柴油,研究了燃油硫含量对柴油机排放性能的影响.研究结果表明,燃油硫含量对柴油机的烟度有直接影响,随着燃油硫含量的降低,柴油机的烟度明显下降,低负荷下燃油硫含量对柴油机的烟度影响较大,NOx排放随燃油硫含量的降低变化很小,而CO和HC排放则降幅明显,SO2排放随柴油机负荷的增加显著上升,随燃油含硫量的降低而显著下降.

Study on the Effect of Diesel Fuel Sulfur Content on Emission Characteristics in Engine

In a direct injection turbocharged diesel engine, study the effects of emission characteristics in diesel engine. four fuels with different sulfur content are used to Results show that the smoke emission has certain relations with sulfur content on fuel, the smoke emission decreases remarkably with the decreases of fuel sulfur content, and the sulfur content on fuel has a greater influence on the smoke emission at low load of the diesel engine, the NOx emission has no significant change when the engine is fuelled with different sulfur content on fuel, while the CO and HC emissions will drop significantly, the SO2 emission increases significantly with the diesel engine load increases and decreases drastically with the decreases of sulfur content on fuel.