A techno-economic analysis of the application of continuous staged-combustion and flameless oxidation to the combustor design in gas turbines

YD Wang, Ye Huang, D McIlveen-Wright, J McMullan, Neil Hewitt, PC Eames, S Rezvani

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


The impact of NOx reduction technologies upon a gas turbine power station has been investigated using the ECLIPSE process simulator. Technical, environmental and economic assessments were performed, based upon a model of the simple cycle gas turbine, fuelled by natural gas.The technologies assessed were: a) selective catalytic reduction (SCR); b) continuous staged air combustion (COSTAIR); and c) flameless oxidation method (FLOX).The SCR method produced a 90% reduction of NOx emissions, at an additional penalty to the electricity cost of 0.19–0.20 p/kWh, over the base case of simple cycle with standard combustor.The COSTAIR method reduced 80.4% of NOx emissions, at an additional electricity cost of 0.03–0.04 p/kWh, over the base case; but 0.16–0.17 p/kWh less than the SCR method at a slightly higher level of NOx emissions.The FLOX method generated 92.3% less of NOx emissions, at an additional electricity cost of 0.08–0.11 p/kWh, over the base case; but 0.09–0.11 p/kWh less than the SCR method at a lower level of NOx emissions.A sensitivity analysis of the Break-Even Selling Price (BESP) of electricity and the Specific Investment (SI) versus the cost of different burner systems shows that the SCR system had the highest values for BESP and SI; and the COSTAIR system had the lowest.The results show that the use of these non-standard burners could offer an effective method of reducing NOx emissions considerably for simple cycle gas turbine power plants with minimal effect on system capital cost and electricity selling price, and were also cheaper than using SCR.
Original languageEnglish
Pages (from-to)727-736
JournalFuel Processing Technology
Issue number8
Publication statusPublished (in print/issue) - Aug 2006

Bibliographical note

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