Main Engine 4-Stroke · Main Engines (4-Stroke)
Marine engineers and operators rely on reliable and efficient engines to ensure the smooth operation of their vessels. One such dependable piece of equipment is the HiMSEN 5H21/32, designed to meet the demands of marine applications. This engine belongs to the H21/32 family and is configured in an L-configuration with five cylinders, each with a bore of 210 mm and a stroke of 320 mm. It operates at 900 rpm and is capable of generating 990 kW of power, making it suitable for a range of marine applications. The engine supports both Heavy Fuel Oil (HFO) and Marine Diesel Oil (MDO) as fuel types, adhering to Tier II and Tier III emissions standards with Selective Catalytic Reduction (SCR) technology. The verified specifications indicate a compression ratio of 17:1 and a maximum combustion pressure of 200 bar. The engine's dry weight is 13.4 tons and its Specific Fuel Oil Consumption (SFOC) at 100% Maximum Continuous Rating (MCR) is 182-187 g/kWh. Common maintenance issues include piston cooling nozzle blockages, crankcase oil mist build-up, exhaust valve seat erosion, and fuel injection nozzle coking, all of which can be mitigated with proper maintenance and monitoring.
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