What is BS EN 17155- Determination of indicated cetane number (ICN) of middle distillate fuels about?
BS EN 17155 specifies a test method for the quantitative determination of the indicated cetane number (ICN) of middle distillate fuels and blending components, intended for use in compression ignition engines.
The test method utilizes a constant volume combustion chamber with direct fuel injection into heated compressed air. Calibration of the apparatus using blends of primary reference materials over a scale of 0 to 100 enables fuel ignition delays, measured from the resulting pressure increase, to be used to determine and report ICN results.
BS EN 17155 is applicable to middle distillate fuels of both petroleum and non-petroleum origin, hydrocarbon oils, oil-sands based fuels, blending components, fatty acid methyl esters (FAME), blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives, low-sulfur diesel fuel oils, aviation turbine fuels and polyoxymethylene dimethyl ether (OME).
However, users applying BS EN 17155 especially to unconventional distillate fuels are warned that the relationship between cetane number and combustion behaviour in real engines is not yet fully understood.
BS EN 17155 covers the calibrated range of 35 ICN to 85 ICN.
Who is BS EN 17155- Determination of indicated cetane number (ICN) of middle distillate fuels for?
BS EN 17155 on determination of indicated cetane number (ICN) of middle distillate fuels is useful for:
- Petroleum industry
- Engine manufactures
- Petroleum refiners and marketers
Why should you use BS EN 17155- Determination of indicated cetane number (ICN) of middle distillate fuels?
The described method in BS EN 17155 is an alternative quantitative determination of the cetane number of middle distillate fuels intended for use in compression ignition engines.
This method is based on calibration by blends of primary reference fuels on a scale of 0 (1- Methylnaphthalene) and 100 (n-hexadecane) with the units of measurement being designated Indicated Cetane Number (ICN).
The ICN value determined with test method specified in BS EN 17155, can provide a measure of the ignition characteristics of middle distillate fuels used in compression ignition engines. This test is useful as a specification aid to relate or match fuels and engines. This test is also applicable to non-conventional middle distillate fuels.