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首页> 外文期刊>日本マリンエンジニアリング学会誌 >Measurement of Bunker Oil/DME Blended Fuel Viscosity for Diesel Engine Application
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Measurement of Bunker Oil/DME Blended Fuel Viscosity for Diesel Engine Application

机译：柴油机应用的船用燃油/ DME混合燃料粘度的测量

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Currently, around 80% of large ships use Bunker oil (JIS C heavy oil) as the base fuel in marine diesel engines. With its very high kinematic viscosity, this oil is considered the lowest grade of fossil fuel. Thus, it needs to be heated to reduce its viscosity. The authors have reported that the blending of liquefied DME improved the combustion performance of Marine Diesel Oil (JIS A heavy oil). This study aims to clarify the effectiveness of DME - Bunker oil blends. The kinematic viscosity measurement of DME and Bunker oil blended fuel was performed using a capillary tube type viscometer. A pressure cell which contains the viscometer was developed to measure the fuel viscosity while keeping DME in a liquid state. From experiments, it was shown that the cell pressurization resulted in smaller values of kinematic viscosity, and modification was needed to obtain true viscosity values. It was shown that at 323K, the kinematic viscosity of Bunker oil can be reduced drastically from 54-89% with DME blending.
机译：当前，大约80％的大型船舶使用船用柴油（JIS C重油）作为船用柴油机的基础燃料。由于其很高的运动粘度，该油被认为是最低等级的化石燃料。因此，需要对其进行加热以降低其粘度。作者报告说，液化二甲醚的混合改善了船用柴油（JIS A重油）的燃烧性能。这项研究旨在阐明DME-地堡油混合物的有效性。使用毛细管型粘度计进行DME和Bunker油混合燃料的运动粘度测量。开发了包含粘度计的压力传感器，以在保持DME液态的同时测量燃料粘度。从实验中可以看出，单元加压导致较小的运动粘度值，需要进行修改以获得真实的粘度值。结果表明，在323K下，通过DME混合，邦克油的运动粘度可以从54-89％大大降低。

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