Progress in Catalytic Ignition Fabrication and Modeling: Modeling Part 2

The ignition temperature and heat generation from oxidation of methane on a platinum catalyst were determined experimentally. A 127 micron diameter platinum coiled wire was placed crosswise in a quartz tube of a plug flow reactor. A source meter with a 4-wire measurement capability measured the resistance and current to calculate the average temperature of the surface reaction. Light-off temperatures varied from 730-780K for methane for a fuel-oxygen equivalence ratio of 0.3 to 1.0 at fuel percentages of 2-5% by volume. A model of the experimental system was created using Fluent coupled with Chemkin to combine an advanced chemistry solver with flow simulation. The experimental data was compared to the model results, which includes heat transfer and the surface reaction kinetics of methane on platinum. The heat transfer model obtained values close to experimental data for temperatures between 400K and 700K. At temperatures greater than 700K the model deviated with temperatures greater than the experimental results.

• Record URL:
  http://www.webs1.uidaho.edu/niatt/research/Final_Reports/KLK762_N12-06B.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/25385
• Supplemental Notes:
  • This document is disseminated under the sponsorship of the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  National Institute for Advanced Transportation Technology

  University of Idaho, Moscow
  115 Engineering Physics Building
  Moscow, ID  United States  83844-0901

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Steciak, Judi
  • Beyerlein, Steve
  • Budwig, Ralph
• Publication Date: 2012-6

Language

• English

Media Info

• Media Type: Web
• Edition: Final Report
• Features: Figures; References; Tables;
• Pagination: 22p

Subject/Index Terms

• TRT Terms: Combustion; Computer models; Engines; Heat transfer; Internal combustion engines; Methane; Platinum
• Uncontrolled Terms: Catalytic ignition
• Subject Areas: Design; Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01458055
• Record Type: Publication
• Report/Paper Numbers: KLK762, N12-06B
• Contract Numbers: DTRT07-G-0056
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Dec 31 2012 5:55PM