Combustion characteristics of a micro segment platinum tubular reactor with a gap

國際期刊
2016 - 06

Journal: Chemical Engineering Journal, vol. 304, pp. 485-492, 2016.

Title: Combustion characteristics of a micro segment platinum tubular reactor with a gap 

Authors: Yu-Ting Wu, Yueh-Heng Li*

Rank: <5% (6/135), SCI, ENGINEERING: CHEMICAL, 2016.

 

 

 

 

 

 

 

 

 

Distributions of OH mass fractions overlaid with velocity vectors and LER level lines for the two catalyst configurations, (a) segmented platinum and (b) plain platinum reactors, respectively, at a fixed inlet velocity of 20 m/sec in the inner and outer chambers.

Abstract: The present study proposes a conceptual design for a combustion chamber for overcoming critical heat loss and flame instability in a micro-thermophotovoltaic power system (micro-TPV). In the design, a platinum tube is used simultaneously as a catalyst reactor and an emitter. The flame-stabilizing mechanisms of a TPV reactor are numerically investigated regardingthe effects of reactor configuration and fuel concentration. The interaction of heterogeneous and homogeneous reactions between the inner and outer chamber of the TPV reactor is also examined. Results indicate that the catalytically induced combustion can be anchored in the gap between two segmented platinum tubes by inheriting thermal energy and radicals from the upstream section of the segmented catalyst. The gap not only provides a low-velocity region for stabilizing flames, but also enables the exchange of fuels and radicals from the inner and outer streams.

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研究成員

  • 李約亨

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