Performance and emissions of a high-speed marine dual-fuel engine operating with methanol-water blends as a fuel
نویسندگان
چکیده
Dual-fuel (DF) operation with methanol-diesel allows to reduce CO2 emissions, increase efficiency and decrease NOx soot. This paper describes the experimental results methanol-water (MeOH-W) blends as a fuel, has three objectives: (1) whether water acts knock suppressant, enabling higher diesel substitution ratios, (2) if can be measure control engine-out emissions given its cooling effect, (3) test effect on brake thermal (BTE) of blend 90% methanol 10% by weight, which is interesting from fuel production cost perspective. Experiments were conducted dual-fuel marine Volvo Penta engine methanol/water weight shares 50%/50% (MeOH-50), 64%/36% (MeOH-64), 90%/10% (MeOH-90) 100%/0% (pure methanol, MeOH-100). A maximal in BTE 3.3% 4.9% observed when going respectively MeOH-100 diesel-only MeOH-50. The maximum energy fraction (MEF) was obtained pure equal 76%, decreased increasing content. compared operation, further It concluded that MeOH-90 does not harm tested engine; MeOH-50 MeOH-64 able reach IMO Tier III legislation, but at same time score worse for greenhouse gas reduction potential less substituted these blends.
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ژورنال
عنوان ژورنال: Fuel
سال: 2023
ISSN: ['0016-2361', '1873-7153']
DOI: https://doi.org/10.1016/j.fuel.2022.126349