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Research Papers: Gas Turbines: Combustion, Fuels, and Emissions

Development and Implementation of the Advanced Environmental Burner for the Alstom GT13E2

[+] Author and Article Information
Klaus Döbbeling

Alstom,
Baden 5401, Switzerland

Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received October 11, 2012; final manuscript received November 12, 2012; published online May 20, 2013. Editor: Dilip R. Ballal.

J. Eng. Gas Turbines Power 135(6), 061503 (May 20, 2013) (11 pages) Paper No: GTP-12-1399; doi: 10.1115/1.4023263 History: Received October 11, 2012; Revised November 12, 2012

Increasing public awareness and more stringent legislation on pollutants drive gas turbine manufacturers to develop combustion systems with low NOx emissions. In combination with this demand, the gas turbines have to provide a broad range of operational flexibility to cover variations in gas composition and ambient conditions along with varying daily and seasonal energy demands and load profiles. This paper describes the development and implementation of the Alstom AEV (advanced environmental) burner, an evolution of the envorinmental (EV) burner. A continuous fuel supply to two fuel stages at any engine load simplifies the operation and provides a fast and reliable response of the combustion system during transient operation of the gas turbine. Increased turndown with low emissions is an additional advantage of the combustion system upgrade.

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References

Döbbeling, K., Zajadatz, M., ZoliR., and Reichstein, E., 2011, “Alstom GT13E2 Combustor Upgrade for Vattenfalls Berlin Mitte Combined Heat and Power Plant,” VGB Fachtagung, Gasturbinen, Offenbach, Germany
Pennell, D., Hiddemann, M., and Flohr, P., 2010, “Alstom Fuel Flexibility for Today's and Future Market Requirements,” Power-Gen Europe, Amsterdam, The Netherlands
Döbbeling, K., Meeuwissen, T., Zajadatz, M., and Flohr, P., 2008, “Fuel Flexibility of the Alstom GT13E2 Medium Sized Gas Turbine,” ASME Turbo Expo, Berlin, June 9–13, ASME Paper No. GT2008-50950. [CrossRef]
Jansohn, P., Ruck, T., Steinbach, C., KnöpfelH.-P., Sattelmayer, T., and Troger, C., 1997, “Development of the Advanced EV (AEV) Burner for the ABB GTX 100 Gas Turbine,” ASME Turbo Asia, Singapore, September 30–October 2.
Steinbach, C., Ruck, T., Lloyd, J., Jansohn, P., Döbbeling, K., and Sattelmayer, T., 1998, “ABB’s Advanced EV Burner—A Dual Fuel Dry Low NOx Burner for Stationary Gas Turbines,” 43rd ASME Gas Turbine and Aeroengine Congress, Stockholm, Sweden, June 2–5.
Sattelmayer, T., Felchlin, M. P., Haumann, J., Hellat, J., and Styner, D., 1992, “Second Generation Low-Emission Combustors for ABB Gas Turbines: Burner Development and Tests at Atmospheric Pressure,” ASME J. Eng. Gas Turbines Power, 114, pp. 97–103. [CrossRef]
Döbbeling, K., Hellat, J., and Koch, H., 2007, “25 Years of BBC/ABB/Alstom Lean Premix Combustion Technologies,” ASME J. Eng. Gas Turbines Power, 129(1), pp. 2–12. [CrossRef]
Zajadatz, M., Lachner, R., Bernero, S., Motz, C., Duckers, J., and Flohr, P., 2007, “Development and Design of ALSTOM's Staged Fuel Gas Injection EV Burner for NOx Reduction,” ASME Turbo Expo, Montreal, Canada, May 14–17, ASME Paper No. GT2007-27730. [CrossRef]
Bernero, S., Glauser, A., and Zajadatz, M., 2006, “Cold Flow PIV and Spray Visualization Experiments Applied to the Development of Dual Fuel Gas Turbine Burners,” 13th International Symposium on Application of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, June 26–29.
Paschereit, O., Flohr, P., Knöpfel, H. P., Geng, W., Steinbach, C., Stuber, P., Bengtsson, K., and Gutmark, E., 2002, “Combustion Control by Extended EV Burner Fuel Lance,” ASME Turbo Expo, Amsterdam, The Netherlands, June 3–6, ASME Paper No. GT2002-30462. [CrossRef]
Hoffmann, J., Baerfuss, P., and Teichmann, O., 2000, “Testing of GT8C2 Serial Number One at the ABB-Alstom Power GT Test Facility, Birr, Switzerland,” Power-Gen International, Orlando, FL, November 14–16.
Hoffmann, J. and Agostinelli, G. L., 2003, “High Fogging Commissioning Test in the ALSTOM Test Center, Birr (Switzerland),” Power-Gen Europe, Düsseldorf, Germany, May 6–8.

Figures

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Fig. 1

Operation modes of the GT13E2 EV burner

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Fig. 2

Advanced environmental (AEV) burner as compared to the EV burner for the GT13E2

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Fig. 3

Design features of the AEV burner

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Fig. 4

Simplified natural gas operation with the AEV burner and permanent front stage fuel

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Fig. 5

Schematic of the EV and AEV fuel supply systems

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Fig. 6

Experimental development process: key validation drivers and outcome from the test and validation carriers

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Fig. 7

Arrangement of the atmospheric single burner combustion rig

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Fig. 8

Lean blow off as a function of the front stage ratio from atmospheric and high-pressure single burner combustion tests

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Fig. 9

Upstream view towards the flame in atmospheric single burner combustion tests

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Fig. 10

NOx emission measured in a single burner test facility at simulated GT13E2 base load conditions: mapping of the firing temperature and front stage ratio in fuel gas operation

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Fig. 11

Overview of the investigated fuel flexibility range in high-pressure combustion tests and available engine experience

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Fig. 12

NOx emission measured in a single burner test facility at simulated GT13E2 base load conditions: influence of C2+ content and N2 dilution in the fuel gas; low FSR

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Fig. 13

Load rejection on the Alstom 56 MW test power plant; fuel gas operation

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Fig. 14

Variation of loading and deloading rates on the Alstom 56 MW testing facility for fuel oil

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Fig. 15

High fogging results on the ALSTOM 56 MW test facility

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Fig. 16

GT13E2 exhaust temperature spreads for gas operation during start-up (top) and at 60% part load (bottom)

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Fig. 17

GT13E2 loading concept and combustor performance with the AEV burner for low LHV gas (37 MJ/kg)

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Fig. 18

GT13E2 long-term operational data with the AEV natural gas operation during cold ambient temperature fluctuations; C2+ < 2%; LHV 49 MJ/kg

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Fig. 19

GT13E2 with the AEV: front stage ratio mapping

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Fig. 20

NOx and CO emissions at base load for the GT13E2 AEV fuel oil operation

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Fig. 21

GT13E2 loading operation concept and combustor performance with the AEV for oil operation

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