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SPECIAL: DANISH MARITIME FAIR 2016

BY FINN BRUUN

PERFECTLY MIXED LUBRICATION OIL With the concept Blending-On-Board lubrication, Maersk Fluid Technology has succeeded in mixing cylinder lubricant so precisely that the consumption of lubricating oil on board can be reduced by up to 40 percent. Meanwhile, the system oil is regularly freshened up, it keeps the engine more clean and reduce energy-related friction. The latest news is a small blender, B500 targeting small 2-stroke engines.

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t the fair, Maersk Fluid Technology will present their future proof Blending-on-Board (BOB) mixing concept for 2-stroke engines, while launching a new blender targeting ships equipped with smaller 2-stroke engines. It’s all about how to mix the cylinder oil in exactly the ratio that gives the desired effect - without paying for features you do not need. The BOB system was originally developed for Maersk’s own ships to address challenges with high cylinder oil consumption and cold-corrosion, but today it is also being used in other fleets. Last year, Maersk Fluid Technology added the B1000 to their SEA-Mate product line targeting medium-sized 2-stroke engines, to target as many types of ships as possible. The first major order is about retrofitting 12 tankers from Maersk Tankers. Maersk Tankers that before they made the investment they took into consideration that the payback time was less than two years, after taking fuel savings and fuel savings into account. In connection with the Danish Maritime Fair, the B500 model will be introduced and will target small engines. With the introduction of the “little new” there is a product range covering all 2-stroke engines from MAN Diesel and Wärtsilä / WinGD. ONLY PAY FOR THE ESSENTIALS Sales Manager of Maersk Fluid Technology Sune Lilbæk explains that you traditionally lubricate the engine’s cylinders with cylinder oil containing a fixed number of acid-neutralizing chemicals: - In order to neutralize all the acid which is formed during the combustion and comes into contact with the liner in aqueous form, you adjust the amount of the lubricating oil - the more sulfur is in the oil burned, the more the cylinder oil is added. On many ships you can switch between two oils, and in recent years we have seen oils with higher neutralization capabilities (BN) especially after cold-corrosion has become a recognized challenge. But often there is a need to increase the amount of lubricating oil to protect against unwanted corrosion - or else you end up paying for properties in the lubricating oil, which are really not needed.

danish maritime magazine

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Sune Lilbæk indicates that with the concept, it is possible to reduce the cylinder lubricating oil to the recommended minimum limit by mixing the lubricating oil, so its ability to neutralize acid matches the amount of sulfur that is in the oil. This can reduce the amount of system and cylinder lube oil that is consumed by up to 50% - thus reducing the cost of the lubricating oil greatly. Studies as well as practice has shown that not only is it possible to reduce consumption - the blended oil is competitively priced compared to the use of commercially available oil such as BN100, a conventional cylinder oil. Lubrication by engine builder’s minimum recommendation also means avoiding unwanted deposits on the cylinder liners, piston rings and piston crowns which reduces wear of these components considerably. GREAT RESULTS There are results of 200 initial installations, showing that it is possible to obtain a lubrication very close and almost as low as factory recommended consumption. Sune Lilbæk talks about the benefits of BOB in relation to the system oil: - Blending-On-Board is based on the fact that you have a cylinder-oil with high acid neutralization number (BN figures) and dilutes this with system oil from the main engine so the BN figure matches the amount of sulfur in the oil. You have then created a consumption of system oil that is otherwise rarely changed. The fresh system oil has the originally intended viscosity and a better ability to keep the engine, filters, and clean components. The lower viscosity of the system oil is documented to provide fuel savings of between 0.5 and 1.5% and greatly reduce energy consumption for cleaning the system oil. The fresh oil also results in reduced costs for maintenance of the system-oil separators. The system has been tested by both MAN and Wärtsilä. Visit Maersk Fluid Technology’s online savings calculator on http://www.maerskfluid.com/index.php.calcu

DAILY NEWS ON WWW.MARITIMEDENMARK.DK

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