Servicio de Información Comunitario sobre Investigación y Desarrollo - CORDIS

Ash management

The uncoated filter was ash loaded by 25g/l by a rapid ash procedure. Diesel fuel, doped by 5% engine oil, was used for generating ash. During the ash loading procedure the filter was periodically thermal regenerated. The ash loaded in the filter showed an effect on the differential pressure. It was found as a very mobile fine-grained powder. The ash can be easily removed from the filter surface. The ratio of the ash blocked filter surface was visually analysed. About 30% of the surface was clogged by ash deposits. The mobile structure is obviously affected by the temperatures during the thermal regeneration process during the ash loading cycles.

Reported by

Gottlieb-Daimler-Strasse, P.F. 3049
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