دوره 2، شماره 4 - ( 7-1391 )
جلد 2 شماره 4 صفحات 260-252 |
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Noorpoor R, sadighzadeh, Habibnejad. Experimental Study on Diesel Exhaust Particles Agglomeration Using Acoustic Waves. ASE 2012; 2 (4) :252-260
URL: http://www.iust.ac.ir/ijae/article-1-165-fa.html
URL: http://www.iust.ac.ir/ijae/article-1-165-fa.html
Experimental Study on Diesel Exhaust Particles Agglomeration Using Acoustic Waves. Automotive Science and Engineering. 1391; 2 (4) :252-260
چکیده: (23165 مشاهده)
Diesel exhaust particles are a complex mixture of thousands of gases and fine substances that contain more
than 40 different environmental contaminants. Being exposed to these exhaust particles (called soot) can
cause lung damage and respiratory problems. Diesel particulate filters are used in many countries for
mobile sources as a legal obligation to decrease harmful effect of these fine particles. The size range of
these particles is varied from 0.01 to 1 µm. Moreover, it takes a long time to be settled when they are
outspread in atmosphere. In this paper, homogeneous plane standing waves are used to coagulate nano
particles in order to achieve larger size which has a better gravitational settling. It means that fine particles
are converted into a large one. Theoretical mechanisms are studied which led to experimental results in
155(db) and 160 (db). The results show that acoustic precipitators have a good performance in removing
fine particles in diesel exhaust. Additionally, they indicate that at high pressure levels, the system has high
efficiency for removing fine particles
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