Catalysed Diesel Particulate Filters
Traditional Diesel Particulate Filter systems consist of a filter material positioned in the exhaust designed to collect solid and liquid particulate matter emissions while allowing the exhaust gases to pass through the ceramic walls. Catalyzed Diesel Particulate Filters (CDPF) are designed not only to achieve collection efficiencies of 90% or greater in terms of mass (over 95% when expressed as number of ultra-fine particles), but also to burn off the collected particulate matter into carbon dioxide and water.
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Diesel Particulate Filter and how it operates?
Diesel emissions are 90% lower since the 1980s; however exhaust regulations based on statistical studies dealing with the health impact of exhaust emissions continue to demand even lower gaseous and particulate diesel emissions. Particulate emissions are responsible for the characteristic black exhaust fumes emitted from the diesel engine. They are a complex mixture of solid and liquid components with the majority of particulates being carbon micro spheres on which hydrocarbons from the engines fuel and lubricant condense.
|1611 mbar (Backpressure)||49 mbar (Backpressure)|
Question: Diesel Particulate Filters (DPF). What is it? What are the common problems associated with DPF?
The main purpose of DPF is to absorb particulate emissions created during the start-up phase of an engine from cold. These absorbed particulates are later superheated and burned off during the regeneration cycle of the DPF.