NOx Emissions from Stationary Gas Turbines - US Environmental ...

LIST OF FIGURES
Figure Page
2-1 Uncontrolled NO emission levels and gas turbine
x
manufacturers' guaranteed controlled levels using
wet injection. Natural gas fuel. . . . . . . . 2-5
2-2 Uncontrolled NO emission levels and gas turbine
x
manufacturers' guaranteed controlled levels using
wet injection. Distillate oil fuel . . . . . . 2-6
2-3 Capital costs for water or steam injection . . . 2-11
2-4 Capital costs for dry low-NO combustion . . . . 2-13
x
2-5 Capital costs, in $/MW, for combustion controls . 2-14
2-6 Capital costs for selective catalytic reduction . 2-15
2-7 Capital costs, in $/MW, for selective catalytic
reduction . . . . . . . . . . . . . . . . . . . 2-16
2-8 Cost effectiveness of combustion controls . . . . 2-18
2-9 Cost effectiveness for selective catalytic
reduction installed dowstream of combustion
controls . . . . . . . . . . . . . . . . . . . 2-21
2-10 Combined cost effectiveness for combustion
controls plus selective catalytic reduction . . 2-22
2-11 Controlled NO x emission levels and associated
capital costs and cost effectiveness for
available NO x control techniques. Natural
gas fuel . . . . . . . . . . . . . . . . . . . 2-24
3-1 The three primary sections of a gas turbine . . . 3-2
3-2 Types of gas turbine combustors . . . . . . . . . 3-3
3-3 Single-shaft gas turbine . . . . . . . . . . . . 3-5
3-4 Two-shaft gas turbine . . . . . . . . . . . . . . 3-5
3-5 Three-shaft gas turbine . . . . . . . . . . . . . 3-5
3-6 Simple cycle gas turbine application . . . . . . 3-8
3-7 Regenerative cycle gas turbine . . . . . . . . . 3-9
3-8 Cogeneration cycle gas turbine application . . . 3-11
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