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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels

NOx Formation in High-Pressure Jet-Stirred Reactors With Significance to Lean-Premixed Combustion Turbines

[+] Author and Article Information
T. Rutar

Department of Mechanical Engineering, Seattle University, 900 Broadway, Seattle, WA 98122-4340

P. C. Malte

Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195-2600

J. Eng. Gas Turbines Power 124(4), 776-783 (Sep 24, 2002) (8 pages) doi:10.1115/1.1492829 History: Received December 01, 2000; Revised March 01, 2001; Online September 24, 2002
Copyright © 2002 by ASME
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References

Figures

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Parameters characterizing turbulent premixed combustion (Abraham et al. 12). Operation of the HP-JSR of Rutar 8 at the minimum and maximum residence times are identified for the conditions: 6.5 atm (open circles), 3.0 atm (diamonds), 6.5 atm at 573 K inlet temperature (squares), and 3.0 atm at 573 K inlet temperature (triangles). Operation of the HP-JSR of Bengtsson 6 is for pressures between 5 and 20 bar (black circles).
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NOx, CO, and N2O data of Bengtsson 6 compared to the results obtained using chemical reactor model PSR-PFR, where VPSR/Vreactor=88%. Fuel-air equivalence ratio is 0.55. Reactor temperature is 1828 K.
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NOx and CO data of Rutar 8 compared to the results obtained using chemical reactor models PSR (at short residence times) and PSR-PSR (at long residence times). Inlet air and methane are not preheated.
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NOx and CO data of Rutar 8 compared to the results obtained using chemical reactor models PSR (at short residence times) and PSR-PSR (at long residence times). Inlet air and methane are preheated to 573 K.
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Amount of NO formed by each of the four pathways in a single-PSR at 6.5 atm with and without preheat. Also shown is the NO from the PSR output (model) and the measured NOx (data of Rutar 8).
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Amount of NO formed by each of the four pathways in two-PSR model at 6.5 atm with preheat. Also shown are the NO from the PSR2 output (model) and the measured NOx (data of Rutar 8).
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Amount of NO formed by each of the four pathways in a PSR-PFR at 1 and 2 ms with preheat. Also shown is the NO from the PFR output (model) and the measured NOx (data of Bengtsson 6).
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Concentration of CH radical versus reactor residence time for single-PSR cases
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Concentration of O-atom versus reactor residence time for single-PSR cases

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