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Exhaust Emission Reduction of Combustion Engines by Barrier Discharge - A new Reactor/Generator System
Technical Paper
1999-01-3638
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An improved plasma reactor has been designed, built and evaluated. It is characterized by a reduced power per area ratio, relative to previous designs, and includes several improvements to run the whole system safely in a car. The new reactor design includes a concentric inner high voltage electrode, a grounded outer electrode, a shielded high-voltage and high temperature resistant electrical connection. A generator controller has been developed for better control of operating conditions as required during the engine cold start phase.
The new generator/reactor system was installed in the exhaust pipe of a gasoline direct injection engine. HC emissions could be reduced up to 30 % in the first 40 seconds of a cold start test.
In addition to HC treatment the dielectric barrier discharge has also been investigated as a method for regenerating a diesel particulate trap.
Authors
Topic
Citation
Lepperhoff, G., Scharr, D., Pischinger, S., Neff, W. et al., "Exhaust Emission Reduction of Combustion Engines by Barrier Discharge - A new Reactor/Generator System," SAE Technical Paper 1999-01-3638, 1999, https://doi.org/10.4271/1999-01-3638.Also In
Non-Thermal Plasma for Exhaust Emission Control: Nox, Hc, and Particulates
Number: SP-1483; Published: 1999-10-25
Number: SP-1483; Published: 1999-10-25
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