MAN Diesel launches two-stage turbocharging stationary engine

German manufacturer MAN Diesel & Turbo launched the 18V48/60TS engine, a two-stage-turbocharged stationary, medium-speed unit at POWER-GEN Europe in Milan.
 
MAN says the new engine offers significantly increased turbocharging efficiency that contributes greatly to the engine’s overall efficiency and power density. The newly developed HFO-run engine also meets World Bank 2008 guidelines for exhaust emissions at higher efficiency.
 
The two-stage turbocharged 18V48/60TS engine offers an increased continuous power-output up to 1200 kW/cyl; NOx emissions of 1480 mg/Nm³ (@15 per cent O2) while operating at an increased output of 1200 kW/cyl; fuel oil consumption of 171.1 g/kWh while retaining an output of 1050 kW/cyl; flexible operation between 1050 and 1200 kW/cyl that gives operators the choice between low fuel consumption or high power output; plus the possibility to retrofit existing 18V48/60 engines to two-stage turbocharged installations.
 
The overall design of the two-stage turbocharged 18V48/60TS has been kept as simple as possible and differs in the form of just a few modifications from the standard engine. These include modified fuel-injection nozzles for the higher power-output range; a three-ring piston with higher compression ratio; a modified camshaft for enhanced Miller timing; and an additional exhaust-gas bypass valve to avoid smoke during start-up.
 
The high-pressure turbocharger is directly mounted to the engine with the low-pressure turbocharger located upstream on its own steel frame. The combustion-air and exhaust-gas piping between both turbochargers is fitted with compensators, ensuring complete insulation from vibrations.
 
At the power output of 1050 kW/cylinder, the 18V48/60TS diesel engine has a specific fuel oil consumption of 171.1 g/kWh, referenced to engine power output without engine-mounted pumps, at ISO 3046 conditions with a tolerance of 5 per cent.
 
This is equivalent to a heat rate of 7305 kJ/kWh or a pure engine efficiency of 49.2 per cent. Referenced to an electrical genset power-output, assuming a generator efficiency of
97.5 per cent and with engine-mounted pumps, the heat rate emerges as 7607 kJ/kWh or 47.3 per cent electrical genset efficiency.
 

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

Whitepapers

Maximizing Operational Excellence

In a recent survey conducted by PennEnergy Research, 70% of surveyed energy industry professional...

Leveraging the Power of Information in the Energy Industry

Information Governance is about more than compliance. It’s about using your information to drive ...

Reduce Engineering Project Complexity

Engineering document management presents unique and complex challenges. A solution based in Enter...

Revolutionizing Asset Management in the Electric Power Industry

With the arrival of the Industrial Internet of Things, data is growing and becoming more accessib...