8L21/31

Crew and engineers on board rely on robust and efficient power generation systems to ensure continuous operation and safety. The MAN L21/31 Mk2 GenSet, specifically the 8L21/31 model, is a compact and reliable power source designed for heavy fuel oil (HFO). This engine stands out with its exceptional load pick-up capabilities and extended time between overhauls, making it suitable for various applications. The 8L21/31 boasts low fuel and lube oil consumption while adhering to legal emission limits, including IMO Tier II standards, and can meet IMO Tier III requirements with the addition of a selective catalytic reduction (SCR) system. The four-stroke marine engine is available in configurations with 5 to 9 cylinders, offering different output levels. For instance, the 8L21/31 delivers 1,980 kW at 1,000 rpm and 1,880 kW at 950 rpm, ensuring reliable power generation. The engine features a high-efficiency constant pressure turbocharging system, enhancing load response and startup time. It also includes an in-house developed safety and control system (MAN SaCoS one) for optimal performance. The "pipeless" design minimizes maintenance needs, while integrated cooling water and lube oil pumps contribute to its efficiency. The 8L21/31 is designed with a common base frame for the engine and alternator, incorporating an integrated lube oil service tank and resilient mounting. Optional equipment includes a 100% power take-off (PTO) on the front-end, enabling fire-fighting capabilities.