MODELING STUDY OF GAS-TO-NANOPARTICLE CONVERSION FROM A VEHICULAR EXHAUST JET PLUME(Jet and Plume)

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概要

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• In situ gas-to-nanoparticle conversion from a vehicular exhaust jet plume has been studied. The Large eddy simulation (LES) method has been adopted to solve the Navier-Stokes equations coupled with a convection-diffusion equation to study the sulfur acid, H_2SO_4 vapor concentration in the vehicular exhaust jet plume. In situ binary homogeneous nucleation of sulfuric acid/water, H_2SO_4-H_2O system and the subsequent coagulation process have been evaluated according to the detailed in situ temperature and H_2SO_4 vapor concentration. Vehicular exhaust jet plume after consuming 500 ppm and 50 ppm of sulfur content in diesel fuel have been simulated. The results show that nucleation process has been taken place mainly in the vortex entrainment region. Compared with the consuming of 50 ppm of sulfur content in diesel fuel, the 500 ppm of sulfur content in diesel fuel produces about a million times of nanoparticles.

• 一般社団法人日本機械学会の論文
• 2005-10-05

著者

• Lin Jian

  Research Centre For Combustion And Pollution Control Department Of Mechanical Engineering The Hong K

• Zhou Kun

  Research Centre For Combustion And Pollution Control Department Of Mechanical Engineering The Hong K

• Chan Tat

  Research Centre for Combustion and Pollution Control Department of Mechanical Engineering The Hong K

• Chan Tat

  Research Centre For Combustion And Pollution Control Department Of Mechanical Engineering The Hong K

関連論文

• MODELING STUDY OF GAS-TO-NANOPARTICLE CONVERSION FROM A VEHICULAR EXHAUST JET PLUME(Jet and Plume)

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