24 WORDS IN ACTION http://www.abrbuzz.co.za
The extension of the test drives currently also off ers advantages
for the testing of the brake dust particle fi lter. The fi lter has already
proven its separation performance in the laboratory and on the
test bench. Now MANN+HUMMEL will test the fi lter under the
conditions found in winter. This will involve testing in operating
conditions with sludge, snow, ice and dirt.In parallel to the test drives with the Fine Dust Eater vehicles,
MANN+HUMMEL is also starting a test with a stationary column
solution. For this purpose, the company has installed a fi lter column
in front of the company’s technology centre in the Schwieberdinger
Strasse in Ludwigsburg. The column is also fi tted with
blowers and particulate fi lters and serves to actively
fi lter out particulates from the ambient air.Filter columns are primarily suitable for use in areas
with a high traffi c volume. For example, they can
contribute towards the reduction of fi ne dust pollution
at busy junctions. The column contains an energy-
effi cient, high performance blower, a multi-stage fi lter
element and a control unit. This enables adjustment
of the operation of the particulate fi lter according to
the conditions.Further application areas could be bus stops where
people are exposed to high levels of fine dust
pollution. The columns can help protect travellers.
For this purpose, MANN+HUMMEL has developed
fi ltration concepts which can be directly integrated
in bus stops or set up in the form of billboards and
information walls.I
n August, a fi eld test started with a test vehicle in the region of
Stuttgart. Today, the company has decided to extend the fi eld
test. In future, two further vehicles will be available for testing
purposes. Both can fi lter particulates from the ambient air, also
when at a standstill. Using a fi lter column MANN+HUMMEL is also
testing a stationary solution. The column is installed at locations
where there is an extremely high level of fi ne dust pollution
to improve the quality of the air.
After tests carried out with the first vehicle,
MANN+HUMMEL will now also equip the two further
vehicles with three applications which are designed to
contribute towards the reduction of fi ne dust pollution
in the air. A particulate fi lter installed on the roof of each
car separates particulates from the ambient air. The
occupants of the vehicle are protected by an innovative
cabin fi lter. In addition, a newly developed brake dust
particle fi lter fi tted to the brake system reduces the
release of particulates to the ambient air.In comparison to the fi rst vehicle, the fi ne dust particle
fi lter on the roof of the two new cars is equipped with
an active fi lter system. Blowers are fi tted behind these
fi lters which direct ambient air to the fi lters. As a result,
even when the vehicle is at a standstill, it is still able to
fi lter particulates from the ambient air.Apart from that, the new particulate fi lters are equipped
with sensors which allow the online monitoring of the
effi ciency of the systems. Here MANN+HUMMEL
records information on the fi ltration performance, the amount of
cleaned air, the concentration of particulates and the weather data.
The data is then sent to a cloud, visualised via a web interface and
then evaluated by fi ltration experts.FILTRATION NEWS
Fine Dust Eaters tackle pollution
Filtration specialists in Germany are researching how to reduce the dangers of fi ne dust pollutionMANN+HUMMEL, the fi ltration specialist from Ludwigsburg,
is conducting a research project titled “fi ne dust eater” to
examine the reduction of fi ne dust pollution in conurbations.
The Filter Column in the Schwieberdinger Straße in LudwigsburgThe Fine Dust Eater