Development of A Microwave Assisted Particulate Filter Regeneration System

Conference · Sun Aug 05 04:00:00 EDT 2001

OSTI ID:827991

Popuri, Sriram

The need for active regeneration of diesel particulate filters and the advantages of microwave assisted regeneration are discussed. The current study has multiple objectives, which include developing a microwave assisted particulate filter regeneration system for future generation light-duty diesel applications, including PNGV type applications. A variable power 2.0 kW microwave system and a tuned waveguide were employed. Cavity geometry is being optimized with the aid of computational modeling and temperature measurements during microwave heating. A wall-flow ceramic-fiber filter with superior thermal shock resistance, high filtration efficiency, and high soot capacity was used. The microwave assisted particulate filter regeneration system has operated for more than 100 hours in an engine test-cell with a 5.9-liter diesel engine with automated split exhaust flow and by-pass flow capabilities. Filter regeneration was demonstrated using soot loads up to 10 g/liter and engine exhaust at idling flow rates as the oxygen source. A parametric study to determine the optimal combination of soot loading, oxidant flow rate, microwave power and heating time is underway. Preliminary experimental results are reported.

• Research Organization: Cummins Inc. (US)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EE) (US)
• OSTI ID: 827991
• Report Number(s): CONF-200108-87
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
DIESEL ENGINES
ENGINES
FLOW RATE
MICROWAVE HEATING
OXIDIZERS
OXYGEN
PARTICULATES
REGENERATION
SIMULATION
TEMPERATURE MEASUREMENT
THERMAL SHOCK