NK-16-18ST


Application: Used to drive compressor and power generators within gas pumping units and power plants.
 
Description: Interchangeable with NK-16ST. Since 1995 the engine has been commercially produced and delivered to main gas pipelines. 18MW power on the free turbine shaft is ensured due to improved characteristics of compressor, engine suspension, combustion chamber and fuel regulators. NK-16-18ST engines’ lifetime is over 80000 hours, they surpass the most advanced installations of similar type by 20% in terms of reliability and life-cycle cost. Presently 269 engines are in operation. The engine fleet has accumulated over 6 million operating hours.
Specifications
Parameter
Value
Power, min, MW
18
Эффективный КПД, %, не менее
31
Free turbine drive shaft speed range, rpm
3975-5565
Exhaust content, mg/nm3
- nitric oxide
- carbon oxide
 
140
100
Sound pressure level, max, dB 135
Weight of engine with frame, kg 7 800
Fuel gas flow, nm3/h 6 500
Start (at Customer’s option) electric, pneumatic
Gas temperature at free turbine outlet, °С 420
Guaranteed life, hours 8 000
Time between overhaul, hours 25 000
Assigned life, hours 100 000
Used oil ТП-22С
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