The effects of platinum on propane/air stagnation flow flames

James T. Wiswall, Margaret S. Wooldridge, Hong Im

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Platinum and quartz stagnation surfaces were used to quantify the effects of heterogeneous reaction on premixed atmospheric pressure propane/air flames. The flame extinction limits were determined for a range of flame stretch conditions (30-90cm-1) and exhaust gas composition (CO2, CO, O2, and NO) was determined for a range of equivalence ratios between the fuel lean and fuel rich extinction limits and dilution levels (N2 to O2 ratios from 3.76 to 5). The stagnation surface was maintained at high temperature, isothermal conditions of 900C for all experiments. The results show that the extinction limits and the products of combustion are insensitive to the presence of the platinum catalyst under the high surface temperature conditions considered in this work. The results are discussed in the context of the physical and chemical mechanisms important during extinction.

Original languageEnglish (US)
Pages (from-to)540-553
Number of pages14
JournalCombustion science and technology
Volume183
Issue number6
DOIs
StatePublished - Jun 1 2011

Keywords

  • Catalytic combustion
  • Platinum catalyst
  • Propane
  • Stagnation point flow

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemistry(all)

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