PRIME MOVER | g/NOx/BHP/hr | NOx PPMv | NOx t/MW/yr | CO2 t/MW/yr |
10MW Gas Turbine | 1.875 | 125 | 22 | 5,776 |
10MW Gas Turbine DLE | 0.225 | 15 | 2.6 | 5,776 |
1MW Gas Engine Lean Burn | 2 | 300 | 23.5 | 4,706 |
1MW Electric Motor (UK Grid) | N/A | N/A | 18.3 | 3,600 |
NOx PPMv - NOx parts per million by volume (PPMv) dry basis normalised to 15% O2
UK Electrical Generation has a balance of gas fired power stations, renewable (primarily wind) and nuclear with reliable published statistics hence its use as a reference.
Guidelines Emissions for Typical Mechanical Drive Prime Movers
PRIME MOVER | Diesel Engine | Gas Engine | Gas Turbine | Gas Turbine DLE |
CO2 kg/MWh | 732 | 537 | 659 | 659 |
NOx kg/MWh | 6.1 | 2.7 | 2.5 | 0.3 |
SO2 g/MWh | 7 | 3 | 18 | 18 |
PM10 g/MWh | 174 | 49 | 98 | 98 |
CO g/MWh | 685 | 2,280 | 297 | 297 |
UHC g/MWh | 349 | 6,169 | 170 | 170 |
Values are typical for machines used for mechanical drive and emergency/black-start power generation applications. Actual results will vary by model, climatic conditions and fuel composition. For Gas Engine and Turbines; values are based on pipeline quality natural gas as fuel. Diesel engines are assumed to be running on highway grade diesel fuel.
DLE - Dry Low Emissions is a technology which uses lean premixed combustion to reduce NOx emissions (Solar Turbines uses the term SoLoNOx™).