利用微孔均匀沉积冲击器研究了直接低温等离子体技术对柴油机PM质量粒径分布的影响.结果表明,DNTP可有效降低柴油机排放的烟度值,对所选工况烟度的平均降幅达65.85％.在0～10 μm范围内,中低负荷时PM质量粒径呈双峰分布,峰值分别在0～0.18μm和＞0.32～0.56 μm范围内;全负荷时,呈单峰分布,峰值出现在＞0.32～0.56μm范围内.随着负荷的增加,粒径较大的颗粒在样品中的质量比例增加.DNTP作用后,25％、50％、75％负荷三种工况时,0～0.18 μm的PM质量分数大幅下降;此外,DNTP作用后,四种工况下以＞0.32～0.56μm区间为中心的相邻区间内PM的质量分数升高,呈现出明显的“聚拢”效应.
参考文献
| [1] | D.S.Su;R.E.Jentoft;J.-O.Muller;D.Rothe;E.Jacob;C.D.Simpson;Z.Tomovic;K.Mullen;A.Messerer;U.Poschl;R.Schlogl .Microstructure and oxidation behaviour of Euro IV diesel engine soot:a comparative study with synthetic model soot substances[J].Catalysis Today,2004(1/2):127-132. |
| [2] | Sadezky A;Muckenhuber H;Grothe H;Niessner R;Poschl U .Raman micro spectroscopy of soot and related carbonaceous materials: Spectral analysis and structural information[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(8):1731-1742. |
| [3] | 韩文赫,蔡忆昔,李小华,王军,李康华,韦星.低温等离子体分解N_2/O_2/NO气氛中NO试验研究[J].工程热物理学报,2012(05):895-898. |
| [4] | Okubo M;Arita N;Kuroki T;Yoshida K;Yamamoto T .Total diesel emission control technology using ozone injection and plasma desorption[J].Plasma Chemistry and Plasma Processing,2008(2):173-187. |
| [5] | Su DS;Serafino A;Muller JO;Jentoft RE;Schlogl R;Fiorito S .Cytotoxicity and inflammatory potential of soot particles of low-emission diesel engines[J].Environmental Science & Technology: ES&T,2008(5):1761-1765. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%