The sooting tendency of a diesel fuels matrix has been investigated in a single-cylinder DI engine and in a shock tube. Soot loading in the optically accessible was inferred using two-color pyrometry. The engine was operated at 1250 rpm and 5 bar imep. Shock tube tests were performed in pure pyrolysis conditions; in the temperature and pressure range 1600-2400 K and 7-13 bar, respectively. The soot formation process was followed by means of light extinction methods. A thorough analysis of the results provided meaningful indications of fuels' performances, allowing to assess the effect of the fuel's composition (aromatics contents, cetane number, oxygen contents) on its sooting tendency.
Characterization of the sooting tendency of Diesel fuels by shock tube and engine experiments
Beatrice C;Bertoli C;D'Alessio J;Lazzaro M;Massoli P;Moccia V
2001
Abstract
The sooting tendency of a diesel fuels matrix has been investigated in a single-cylinder DI engine and in a shock tube. Soot loading in the optically accessible was inferred using two-color pyrometry. The engine was operated at 1250 rpm and 5 bar imep. Shock tube tests were performed in pure pyrolysis conditions; in the temperature and pressure range 1600-2400 K and 7-13 bar, respectively. The soot formation process was followed by means of light extinction methods. A thorough analysis of the results provided meaningful indications of fuels' performances, allowing to assess the effect of the fuel's composition (aromatics contents, cetane number, oxygen contents) on its sooting tendency.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
