The solution for efficient operation of MAN B&W marine engine series
- Author Thi Minh Hao Dong
- Co-Author Thanh Hai Truong
- DOI
- Country : Vietnam
- Subject : Transport
Keywords : Efficient operation solutions, low load operation, MAN B&W S46ME-B8.5, exhaust valve, high-pressure pump
Abstract
The main diesel engine of a ship is the heart of the ship, it determines the speed and the ability to effectively exploit the ship. Therefore, the exploitation of the engine safely, reliably and effectively is extremely important. Parts of marine diesel engines are made of different materials. Each type of material can only work with a certain temperature limit, so to ensure the safety of the engine's components, while the diesel engine must be cooled. According to the coolant, the diesel engine has two types: air-cooled diesel engine and water-cooled diesel engine. In some cases, it is difficult to arrange the installation of a water-cooled system, such as a diesel engine on land, a diesel engine used as an incident generator on board (the engine is installed on the upper floor). High above sea level). In these cases, people often equipped with small wind-cooled Diesel engines. For air-cooled engines, cylinder-shaped engines, which produce lubricant, have a wing-shaped structure, cooled by a blower installed on the front of the machine and driven by the engine. For large-capacity diesel engines, most are water-cooled. Although compared with air-cooled, water-cooled is more likely to cause thermal stress, corrosive details, but the cooling effect is higher. There are two methods of water cooling: direct cooling and indirect cooling. The cooling system directly takes sea water from outside the ship to cool the engine, after cooling is discharged directly into the sea. The cooling system is characterized by: Simple system, no need to equip fresh water welding, no need to pump cooling fresh water. This study investigated and identified the structural and operating characteristics of Hitachi 6S46 ME-B8.5 engines. From that point on, the influence on the process of the motor operating at low load when sailing.
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