H2O2 ADDITION TO DIESEL ENGINE EXHAUST GAS AND ITS EFFECT ON PARTICLES
- Resource Type
- Authors
- T. Kauffeldt; T. Eckhardt; B. Franz; P. Roth
- Source
- Journal of Aerosol Science. 31:415-426
- Subject
- Fluid Flow and Transfer Processes
Smoke
Atmospheric Science
Environmental Engineering
Tandem
Chemistry
Mechanical Engineering
Thermal decomposition
Analytical chemistry
Exhaust gas
Diesel engine
Pollution
Diesel fuel
Particle material
Particle
- Language
- ISSN
- 0021-8502
A programme of particle measurements at two different direct injection (DI) diesel engines have been performed in which the effect of H 2 O 2 addition to the exhaust gas on particle emissions has been observed. A DDMA-system consisting of two synchronously operating DMA-CPC systems one being equipped with a thermolysis tube was used to separate the effect of H 2 O 2 addition on the solid and on the volatile particle material. The results indicate that the effect on solid particle material is very weak due to a lack of reaction time. This result is confirmed by Bosch Smoke Number measurements. On the other hand, a clear effect of H 2 O 2 addition on the volatile particle fraction was observed. Additionally performed tandem DMA measurements gave hints to the kind of volatile species.