48/60 Four-stroke diesel engine - MAN Diesel & Turbo Canada

48/60 Technical DataOverviewTop turbochargersThe constant pressure turbocharging system usesstate-of-the-art MAN Diesel & Turbo TCA series turbochargers,with long-bearing overhaul intervals. Theirhigh efficiency at full and part loads ensures thoroughcombustion with low thermal stress and no residue.48/60 V-engines are charged by a single TCA turbocharger,with the advantage that the cylinders sharea single exhaust line. A new turbocharger modulewith integrated intercoolers significantly reduces theengine centres between two adjacent V-engines.Service-friendly designA number of features make servicing the 48/60 easy:• Hydraulic tools for tightening and loosening cylinderhead nuts, and for the crankshaft and big-endbearings;• Clamps with quick-release fasteners and/or clampand plug connectors;• Generously sized access covers;• A practically maintenance-free sleeve spring vibrationdamper.SaCoS for enhanced safetyOn request, all MAN Diesel & Turbo medium-speedengines, including the L48/60, can be equipped withthe SaCoS safety and control system. This system istested at the factory together with the engine, makingfine tuning and functional testing easier andsmoother when the power unit is commissioned.Low exhaust emissionsAs with all MAN Diesel & Turbo engines, 48/60 enginescomply with World Bank guidelines for exhaustemissions. Even lower NO X emissions can beachieved to fulfil worldwide emission standards forspecific plants.For example, engines can be equipped with MAN’sadvanced selective catalytic reduction (SCR) technology.The more thorough the combustion, the lower theparticle emissions. MAN Diesel & Turbo’s highly efficientengines produce particle emission rates wellbelow the World Bank guidelines, provided that fuelwith low ash content is used.Engine cycle:four-strokeTurbocharging system: constant-pressureNumber of cylindersIn-line engine: 9V-engine: 12, 14, 18Bore:480 mmStroke:600 mmSwept volume per cyl.: 108.6 dm 3Cylinder output (MCR)at 514 rpm:1,050 kWat 500 rpm:1,050 kWCoolingCylinder cooling:cooling waterCharge-air cooler (two-stage): fresh waterFuel injector cooling: fresh waterStarting methodcompressed airEmissionsThe engines comply with the World Bankguidelines for thermal power plants.General definition of diesel engine ratings accordingto ISO 30461/1-2002Ambient conditions according to ISO 3046-1:2002The stated consumption figures refer to the followingreference conditions according to ISO 3046-1:• Ambient air pressure: 1,000 mbar• Ambient air temperature: 25°C (77°F)• Charge air temperature: According to engine type,corresponding to 25°C cooling water temperaturebefore charge air cooler.The SFOC figures for engines in diesel operation are based on alower calorific value of the fuel of 42,700 kJ/kg.Figures are given with a tolerance of 5 per cent, except for the lubricatingoil consumption, which is given with a tolerance of 20 per cent.6 48/60 – Four-stroke diesel engine 48/60 – Four-stroke diesel engine 7