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In case of combined cycle gas turbines with supplementary firing, the standardised O2 content may be defined by the competent authority, taking into account the specific characteristics of the installation concerned.
Total rated thermal input (MW) | Coal and lignite and other solid fuels | Biomass | Peat | Liquid fuels |
---|---|---|---|---|
50-100 | 400 | 200 | 300 | 350 |
100-300 | 200 | 200 | 300 250 in case of fluidised bed combustion | 200 |
> 300 | 150 200 in case of circulating or pressurised fluidised bed combustion | 150 | 150 200 in case of fluidised bed combustion | 150 |
In general | 35 |
Liquefied gas | 5 |
Low calorific gases from coke oven | 400 |
Low calorific gases from blast furnace | 200 |
Total rated thermal input (MW) | Coal and lignite and other solid fuels | Biomass and peat | Liquid fuels |
---|---|---|---|
50-100 | 300 400 in case of pulverised lignite combustion | 250 | 300 |
100-300 | 200 | 200 | 150 |
> 300 | 150 200 in case of pulverised lignite combustion | 150 | 100 |
Gas turbines for emergency use that operate less than 500 operating hours per year are not covered by the emission limit values set out in this point. The operator of such plants shall record the used operating hours.
a For single cycle gas turbines having an efficiency greater than 35 % – determined at ISO base load conditions – the emission limit value for NOx shall be 50xη/35 where η is the gas turbine efficiency at ISO base load conditions expressed as a percentage. | ||
NOx | CO | |
---|---|---|
Combustion plants other than gas turbines and gas engines | 100 | 100 |
Gas turbines (including CCGT) | 50a | 100 |
Gas engines | 75 | 100 |
For gas turbines (including CCGT), the NOx and CO emission limit values set out in this point apply only above 70 % load.
Gas turbines and gas engines for emergency use that operate less than 500 operating hours per year are not covered by the emission limit values set out in this point. The operator of such plants shall record the used operating hours.
Total rated thermal input (MW) | |
---|---|
50-300 | 20 |
> 300 | 10 20 for biomass and peat |
In general | 5 |
Blast furnace gas | 10 |
Gases produced by the steel industry which can be used elsewhere | 30 |