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

Jeongmin Ahn; Paul D. Ronney

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

Research output: Chapter in Book/Entry/Poem › Conference 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 language	English (US)
Title of host publication	Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting
Publisher	Western States Section/Combustion Institute
Pages	495-500
Number of pages	6
ISBN (Electronic)	9781617827921
State	Published - 2005
Externally published	Yes
Event	Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 - Stanford, United States Duration: Oct 17 2005 → Oct 18 2005

Publication series

Name	Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting
Volume	1

Other

Other	Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005
Country/Territory	United States
City	Stanford
Period	10/17/05 → 10/18/05

ASJC Scopus subject areas

General Chemical Engineering
Physical and Theoretical Chemistry
Mechanical Engineering

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 (pp. 495-500). (Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting; Vol. 1). Western States Section/Combustion Institute.

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

Research output: Chapter in Book/Entry/Poem › Conference contribution

Ahn, J & Ronney, PD 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. Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting, vol. 1, Western States Section/Combustion Institute, pp. 495-500, Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005, Stanford, United States, 10/17/05.

Ahn J, Ronney PD. 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. Western States Section/Combustion Institute. 2005. p. 495-500. (Fall Technical Meeting of the Western States Section of the Combustion Institute 2005, WSS/CI 2005 Fall Meeting).

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

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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.",

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

Abstract

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ASJC Scopus subject areas

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