Haldor Topsoe is presently testing their catalytic coating for diesel particle filters. FORCE Technology provided assistance with conducting precise measurements of the filters’ ability to remove fine particles.
The study involves four taxis that are operating in the Copenhagen metropolitan area with Haldor Topsoe’s new diesel particle filters.
After driving a predetermined number of kilometres, the particle filters’ ability to reduce emissions of hydrocarbons and hazardous fine particles was tested to determine whether their effectiveness would decrease over time.
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FORCE Technology's ELPI apparatus measures emissions from a particle filter on a car. |
Research Scientist Gurli Mogensen from Haldor Topsoe says: “By conducting realistic tests of the particle filters in use, we acquire a true understanding of what the filter is exposed to during its lifetime. You could say that we are conducting a durability test of the filters.”
Precise measurement of fine particles
Gurli Mogensen contacted FORCE Technology to conduct a highly precise measurement of the number of fine particles emitted by the taxis.
“We knew that FORCE Technology had recently invested in a new and very advanced ELPI device designed to measure ultrafine particles with great precision. In the process, we have also been able to draw on FORCE Technology’s specialist knowledge in the field of emissions,” says Gurli Mogensen.
The measurement of the particle filters’ effectiveness was carried out by placing each taxi on a rolling road and then driving with standardised speeds as the ELPI device measured the emissions of fine particles from the exhaust.
Particle filter proved very effective
The preliminary results of the study show that Haldor Topsoe’s particle filter more than meets current legislation on emissions of hazardous particles. Company efforts to market their particle filter are thus in full swing and numerous international car manufacturers have already shown considerable interest.
