Turbocharger Cut-off System

Tuesday, July 21, 2009

To meet the growing demand for running large container vessels on varying loads, MAN Diesel has developed a turbocharger cut-out system that improves main-engine performance during low-load operation.

MAN Diesel’s Turbocharger Cut-Out System lowers main-engine fuel-oil consumption and improves performance during low-load operation. The system includes two, pneumatically operated cut-out valves placed at the turbine inlet and compressor outlet.

Installation of the Turbocharger Cut-out system requires little time and MAN Diesel PrimeServ reports that with the right planning, off-hire can be avoided. Installation during voyages can be carried out by a MAN PrimeServ installation team.

On engines with three turbochargers, one turbocharger cut-out enables operation at loads from 20% to 66% MCR, delivering:
•    an expected SFOC reduction of 5g/kWh and a 0.25 bar increase in scavenge-air pressure at 25% power
•    an expected SFOC reduction of 3g/kWh and a 0.52 bar increase in scavenge air pressure at 50% power
•    turbine-out temperature drops of up to 30 degrees.

Engines with four turbochargers and one turbocharger cut-out enables operation at loads from 20% to 74% MCR, delivering:
•    an SFOC reduction of 6g/kWh per 0.15 bar increase in scavenge-air pressure at 25% power
•    an SFOC reduction of 5g/kWh per 0.41 bar increase in scavenge-air pressure at 50% power
•    turbine-out temperature drop of up to 50 degrees

For engines with less than three turbochargers, MAN Diesel PrimeServ recommends a solution with variable turbine inlets.

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter June 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

Red Funnel Catamaran Powered by MTU Engines

The latest addition to the British Red Funnel ferry fleet, Red Jet 6, completed first sea trials in June 2016 and will go into service in July. The high-speed catamaran

Gibdock Overhauls Solstad Cutter Propulsion System

Gibraltar’s Gibdock shipyard has completed an extensive package of work on Solstad Shipping’s Normand Cutter. The 127m long, 10,979grt construction support vessel

Solstad CSV Gets Propulsion Overhaul at Gibdock

Gibraltar’s Gibdock shipyard has completed its scope of work on Solstad Shipping’s Normand Cutter, a 127-meter-long, 10,979grt construction support vessel (CSV)

 
 
Maritime Standards Navigation Offshore Oil Pod Propulsion Port Authority Salvage Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0461 sec (22 req/sec)