MAN Diesel Introduces 10 MW Engine

Monday, October 12, 2009

The new V28/33D engine has the highest power density in its class while maintaining full compliance with IMO-II and EPA Tier-II legislation. Its compact design is tailored for three main segments: multiple propulsion applications, including all types of fast ferry, naval ships, super-yachts, an STC edition; and as GenSets for offshore applications.

Additional design features include the new, in-house-developed, engine-mounted SaCoSone safety and control system, and the new, TCA33 turbocharger, which has been especially tuned for the V28/33D engine as it is a light, high-efficiency turbocharger with a compact design.

Other, major design optimizations include:
•    a one-part air-manifold of symmetrical design
•    an optimized crankshaft design with reduced stresses and improved lubrication an oil sump with increased volume to accommodate inclination requirement. A rolling dynamic of 22° and pitching static of 5° are allowed with an additional dynamic of +/- 7.5°
•    an improved connection rod with a straight-cut design gives high reliability, better balance and lower engine vibrations

The Emission Tier II package includes:
•    an optimised injection system
•    a combustion chamber
•    Miller cycling
•    a high-efficiency charge-air cooler
•    an improved NOx/SFC/soot trade-off

The new engine is available in an STC (Sequential Turbocharging) version that offers optimal engine-turbocharger matching. For naval applications in particular, this gives the engine an extended torque envelope that offers economical operating modes and improved engine-acceleration characteristics. The MAN Diesel STC system consists of two identical, standard turbochargers, one providing copious charge-air at low- and medium-speed, with the second cutting in at higher speeds.

MAN Diesel is simultaneously introducing GenSet versions of the V28/33D engine to the market, tailor-made for the offshore segment, with the following, alternative characteristics:
•    405 kW/cyl @ 900 rpm (10% overload for regulation)
•    455 kW/cyl @ 1000 rpm (10% overload for regulation)
•    Fast starting possibility
•    High loading step
•    Integrated design with reduced interface
•    High dynamic load response
•    Lightweight GenSet with compact foot print
•    Low vibration / low structure-borne noise
•    Inclination up to 25° – all directions
•    EPA Tier-II compliant

The 28/33D GenSet version is, by nature, easy to install owing to several factors:
prepared as one unit (common frame, attached pumps, valves, coolers etc)
•    compact (high output, low weight)
•    double, elastic-mounted engine
•    simple customer connections (easy installation)
•    integrated combi-cooler for fuel and LT/HT water with easy access and low weight
•    closed and integrated, pressurised cooling water system (easy installation)
•    integrated alternator cooling
•    three-point, base-frame installation (easy installation)

(www.mandiesel.com)

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