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Combustion Behaviour of Blends of Synthetic Fuels in an Optical Single Cylinder Engine Universitat Politecnica de Valencia
- Format:
- Book
- Conference/Event
- Author/Creator:
- Pastor, Jose V., author.
- Conference Name:
- 15th International Conference on Engines & Vehicles (2021-09-12 : Capri, Italy)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- The reduction of carbon footprint of compression ignition engines for road transport makes it necessary to search for clean fuels alternative to diesel and to evaluate them under engine conditions. In this paper, the combustion behaviour of different blends of synthetic fuels has been analyzed in an optical single cylinder engine of Medium Duty size (0,8 liters per cylinder) by means of optical engines. These fuels are blends of oxymethylene dimethyl ether (OMEX and OME1) with hydrotreated vegetable oil (HVO), that were injected with a conventional common rail injection system and a single injection strategy. In addition, special care was taken to ensure that conditions inside the engine cylinder at the injection start were identical and as close as possible to the conditions of previous studies carried out in constant pressure vessels. This should allow to validate that previous findings are still valid in engine conditions.To understand the combustion process, and enhance the differences between fuels, high-speed imaging of OH* chemiluminescence and of natural luminosity (NL) of the flame were analyzed with high temporal resolution of the combustion process. To compensate the low lower heating value (LHV) of OMEX and OME1 and maintain injection time between different working conditions, injection pressure was adapted as necessary.Results confirm that the increase of synthetic fuel in the mixture, produces a decrease in the radiation intensity, which indicates a decrease in soot formation. It is accompanied by an increase in the intensity of OH* that indicates a faster soot oxidation
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-24-0038
- Access Restriction:
- Restricted for use by site license
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