Visitors are under the impression to “look into the running engine”Images: ©MAN ES? exible with regard to LPG composition * a low-pressure supply system; • In-house developed gas safety and est from the shipping world in operat-and ? nds even LPG qualities containing • a fuel-injection system similar to control system ing on alternatives to HFO. Methane, signi? cant amounts of ethane acceptable. that most recently developed for MAN • Fuel oil system Methanol and LPG carriers have already The ME-LGI (-Liquid Gas Injection) ES conventional MDO/HFO engines • Common injection system for pilot operated at sea for many years and many concept can be applied to all MAN En- – the FBIV (Fuel Booster Injection oil and for main injection more LPG tankers are currently being ergy Solutions low-speed engines from Valve): this innovative fuel booster, • Gas system built as the global LPG infrastructure 500-bore and up, either ordered as an specially developed for the ME-LGI • LPG injection by fuel booster injec- grows. With a viable, convenient and original unit or through retro? tting. engine, ensures that a low-pressure fu- tion valves (FBIV) comparatively cheap fuel already on-el-gas supply system can be employed, board, it makes sense to use a fraction The primary characteristics of ME- signi? cantly reducing ? rst-time costs According to MAN ES it comes with- of the cargo to power the vessel with an LGIP engines include: and increasing reliability, out saying that the new MAN B&W important, side-bene? t being its positive, The engine works according to the two- • an injection pressure of 500-600 bar ME-LGIP engine ful? lls the following environmental performance. stroke cycle and comes with numbers of • the ability to handle low-sulfur/low- exhaust regulations: * The ME-LGIP engine operates with cylinders from 5 to 12 depending on bore ? ashpoint fuel types: methane, methanol, * IMO Tier II and also IMO Tier III the same ef? ciency as the ME-C enginesize (bore: 500 mm to 950 mm); whereby ethanol, LPG, and dimethylether (DME). (with SCR, EGR or EcoEGR*). ( *): for * The ME-LGIP engine will consume the stroke/bore ratio is: 3.6 to 5.0. • Turbocharging system improved ef? ciency when operating in LPG as main fuel and uses HFO as pilot oilWith this the speci? ed maximum con- • High ef? ciency constant pressure tur- Tier II mode.) * Seamless change over from gas to tinuous power range is of 5,350 kW to bocharging systems with MAN, ABB or fuel and vice versa82,440 kW. MHI turbochargers as standard Summary * Possible to run on any gas/fuel mix, The engine features: • Engine automation and control The ME-LGI came about due to inter- fuel ? exibilityImages: ©MAN ES28 Maritime Reporter & Engineering News • OCTOBER 2018MR #10 (26-33).indd 28 MR #10 (26-33).indd 28 10/4/2018 10:02:03 AM10/4/2018 10:02:03 AM