Standard Test Method for Determination of Ignition Delay and Derived Cetane Number (DCN) of Diesel Fuel Oils by Combustion in a Constant Volume Chamber

Importancia y uso:

5.1 The ID and DCN values determined by this test method can provide a measure of the ignition characteristics of diesel fuel oil in compression ignition engines.

5.2 This test can be used in commerce as a specification aid to relate or match fuels and engines. It can also be useful in research or when there is interest in the ignition delay of a diesel fuel under the conditions of this test method.

5.3 The relationship of diesel fuel oil DCN determinations to the performance of full-scale, variable-speed, variable-load diesel engines is not completely understood.

5.4 This test may be applied to non-conventional fuels. It is recognized that the performance of non-conventional fuels in full-scale engines is not completely understood. The user is therefore cautioned to investigate the suitability of ignition characteristic measurements for predicting performance in full-scale engines for these types of fuels.

5.5 This test determines ignition characteristics and requires a sample of approximately 100 mL and a test time of approximately 20 min on a fit-for-use instrument.

Subcomité:

D02.01

Referida por:

D1655-25, D1655-25, D6751-24, D6751-24, D4737-21, D0975-24A, D4054-25A, D8147-24, D1655-25, D7467-23, D7467-23, D4737-21, D0975-24A, D4737-21, D6751-24, D0975-24A

Volúmen:

05.05

Número ICS:

13.220.40 (Ignitability and burning behaviour of materials and products), 43.060.40 (Fuel systems)

Palabras clave:

cetane number; derived cetane number; diesel performance; ignition characteristic; ignition delay;