Effect of wall thermal conductivity and thickness on the performance of heat-recirculating reactors session 05F-28

Jeongmin Ahn, Paul D. Ronney

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent studies of spiral counterflow "Swiss-roll" heat-recirculating reactors have demonstrated the importance of streamwise heat conduction on their performance. Titanium Swiss rolls having a thermal conductivity (k) of 7.1 W/m-K, geometrically similar to inconel 718 reactors (k = 11.1 W/m-K) studied previously, were constructed to test this hypothesis using propane-air mixtures with specially-prepared Pt catalyst. Three different wall thicknesses were studied. As suggested by theoretical studies, better performance was found for low-k, thin-walled reactors. Under these conditions, self-sustaining chemical reaction could be maintained at maximum temperatures below 55°C with ignition temperatures below 90°C. These results may be useful for development of micropower generation devices employing thermoelectrics or solid-oxide fuel cells.

Original languageEnglish (US)
Title of host publicationFall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting
PublisherWestern States Section/Combustion Institute
Pages495-500
Number of pages6
Volume1
ISBN (Print)9781617827921
StatePublished - 2005
Externally publishedYes
EventFall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 - Stanford, United States
Duration: Oct 17 2005Oct 18 2005

Other

OtherFall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005
CountryUnited States
CityStanford
Period10/17/0510/18/05

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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  • Cite this

    Ahn, J., & Ronney, P. D. (2005). Effect of wall thermal conductivity and thickness on the performance of heat-recirculating reactors session 05F-28. In Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting (Vol. 1, pp. 495-500). Western States Section/Combustion Institute.