It is widely held in industry that the use of vitiated heaters is to be avoided in combustion tests. The present paper reviews the situation and gives results which suggest the magnitude of the problem with respect to the various combustion test measurements. Vitiation temperatures up to 800 K are considered and the effects are assessed against: (a) gas temperatures within the combustor, (b) combustor wall temperatures, (c) flame radiation effects, (d) air/fuel distribution within primary zone, and (e) pollutant effects. It is demonstrated that some of the above effects may be minimized by using oxygen replenishment. The paper concludes that in no circumstances should vitiated preheating be used. Oxygen replenishment, whilst largely overcoming the deleterious effects of items (a) to (d) above, is not sufficient to overcome the effects upon the formation of pollutants, particularly oxides of nitrogen.
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ASME 1980 International Gas Turbine Conference and Products Show
March 10–13, 1980
New Orleans, Louisiana, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7965-8
PROCEEDINGS PAPER
Considerations of the Use of Vitiated Preheat
D. Kretschmer
D. Kretschmer
Laval University, Quebec, Canada
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J. Odgers
Laval University, Quebec, Canada
D. Kretschmer
Laval University, Quebec, Canada
Paper No:
80-GT-61, V01AT01A061; 7 pages
Published Online:
April 17, 2015
Citation
Odgers, J, & Kretschmer, D. "Considerations of the Use of Vitiated Preheat." Proceedings of the ASME 1980 International Gas Turbine Conference and Products Show. Volume 1A: General. New Orleans, Louisiana, USA. March 10–13, 1980. V01AT01A061. ASME. https://doi.org/10.1115/80-GT-61
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