Abstract:
A particulate
separation system that can be used to study the characteristics
of the diesel particulate agglomeration and cyclone separation
is developed. It includes a diesel particulate agglomerator and
a cyclone separator mainly. A preliminary investigation on the
cyclone separation technology for controlling the exhaust
particulate from a diesel engine is conducted. The experimental
results show that the diameter distribution of the diesel
particulate is changed after they pass through the agglomerator,
almost 30%-40% of the particulate agglomerated from less than
1.0 m to larger than 1.0 ,this change contributes to trap diesel
particulate. With this system installed on the exhaust pipe of a
single-cylinder engine, the particulate separation efficiency is
around 40%-60% under typical engine running condition. The
back-pressure of this system is less than 5 kPa on full load
condition, much less than that of other methods of particulate
filtration. This technology has the possibility to open a new
prospect for particulate reduction because of its simplicity,
reliability and low resistance.
Key words: Diesel particulate Agglomeration Cyclone separation
*
This project
is supported by National Natural Science Foundation of China (No.599760010) and
Visiting Scholar Foundation of Key Laboratory (No.99915001). Manuscript received on December 1, 2000; revised manuscript April 16, 2001
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