MAN Dual-Fuel GenSets
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MAN Dual-Fuel GenSetsL23/30DF and L28/32DF Engineering the Future - since 1758. MAN Diesel & Turbo

Flexible dual-fuel power technology is becoming increasingly important in a marine market where oil prices are fluctuating and emission legislation is becoming ever more stringent. As shipping route and operation vary, every ship has different requirements in terms of dual-fuel design and time frame for installation. This demands careful planning and consideration of the liquefied natural gas (LNG) systems available in order to find the most beneficial solution for your particular needs. An alternative to dual-fuel engines is pure gas engines, but dual-fuel engines have several advantages...

MAN Diesel & Turbo's dual-fuel generating sets form part of a complete marine solution with the low-speed MAN B&W ME-GI main engines. MAN L23/30DF and MAN L28/32DF are designed to complement the two-stroke dual-fuel ME-GI engine as part of a complete power package. The inherent advantages of the dualfuel design are: ■ a high reliability, since the dual-fuel genset is based on the most sold marine engine type ever with more than 16,000 engines in service worldwide ■ a competitive first-cost price is achieved by using the same fuel in- jection system in gas mode and fuel mode ■ spare parts...

Dual-Fuel Operation relied power source on board ships from Fig. 1 shows a dual-fuel engine over- on the proven classic GenSet designs international shipowners. The reliability view where the main gas components of the dual-fuel GenSets has been es- are highlighted. A flexible engine room worldwide as ultra-reliable and robust tablished as several thousand running layout is possible due to the properties GenSets with long TBOs. hours in gas operation are long since of the gas valve regulator. The regulator passed. Especially on container vessels ensures a constant gas pressure at the MAN...

A competitive first-cost is achieved valve is used for injection of pilot oil Further, the injection design enables a through the unique fuel injection sys- (MGO) when the GenSets are running in cost-effective and easy retrofit as no gas mode. This means that a separate additional pilot oil system is needed. fuel oil injection system with injectors, In fuel mode, the oil (MGO) is injected pumps and pipes for running in gas through the main oil valve and the same Fig. 3: Gas components on the dual-fuel engine: 1. Gas injection valve, 2. Gas block, 3. Double-walled gas pipe with gas leak...

Flexible Installation An LNG supply system is shown in Fig. stant gas pressure at the engine and designed in various ways. The GVUs 4, where the GenSets can combust allows a flexible installation of the gas can be placed either separately or in valve units (GVUs), see Fig. 4. a designated GVU room up to 100 m from the GenSets. The gas valve regulator mounted on the If limited space is available in the engine MAN dual-fuel GenSets ensures a con- room this is an advantage as it can be Engine room Main Engine: ME-GI Bunkering station From/to glycol water skid Fuel Supply System Cryogenic pumps...

Easy Installation of the Engine Series L23/30 – Plug and Play The new monocoque design is a cost- a stiffer construction that reduces the steel foundation with support towers down initiative that simplifies the in- and subsequent levelling superfluous. stallation of the engine series L23/30 The installation of the GenSet now only The key economic benefits of the rede- requires three mounting points for the proved base frame concept offers sev- signed base frame are reduced engi- eral technical advantages, a reduction neering and installation costs. The new of the overall weight of the...

MAN Diesel & Turbo Online Service Greater protection for your engines CoCoS-EDS work areas Data logging. Engine data can be ob- In the modern global economy, the Trend analysis. With CoCoS-EDS, tained online and data stored for the rapid transmission of information for operators can observe engine perfor- engine evaluation plays a decisive role, mance over time, compared to both particularly in the field of transportation measured and reference values, thus Reporting. An overview of engine-per- and power generation. Thanks to the in- allowing early detection of abnormali- formance data,...

Online Service advantages Improved support for operators Necessary spare parts identified and dispatched swiftly Travel-cost savings as a result of remote support No costs incurred for deployment of additional experts Clear and comprehensive documentation. CONTROL ROOM CABINET INDUSTRIAL PC Faster troubleshooting and fault elimination CONTROL ROOM Optimised plant reliability and availability 1. ETHERNET SWITCH: ENGINE LOAD SIGNAL TO EACH MAN GENSET FROM POWER MANAGEMENT SYSTEM / ALARM SYSTEM ENGINE ROOM MAN GENSETS MODBUS CABLE 1. ETHERNET SWITCH FIREWALL HARDWARE

P Free passage between the engines, width 600 mm and height 2,000 mm Q ~Min. distance between centre of engines: ~2,250 mm (without gallery) ~2,600 mm (with gallery) Eng. kW Gen. kW1 Eng. kW Gen. kW1 Eng. kW Gen. kW1 Based on nominal generator efficiencies of 95% 14 MAN Dual-Fuel GenSets

P Free passage between the engines, width 600 mm and height 2,000 mm Q ~Min. distance between centre of engines: 2,655 mm (without gallery) ~2,850 mm (with gallery) Based on nominal generator efficiencies of 95%

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