New test method for bag house filters

R. Heidenreich*, A. Böhme, S. Herrmann, Institute of Air Handling and Refrigeration (ILK), Germany

Based on the revision of the BREF- guidelines in European community and the redesign of the TA Luft in Germany, there will be a further reduction in the emission limit values for industrial plants. According to the current draft of TA Luft 2019, the emission concentrations of air pollution sources with mass flows above 0.40 kg / h are limited to 10 mg/ m³. That is a halving of the current level.

Other legislative changes also in work in case of emission limits in relation to particulate and ultrafine dust concentrations. This also requires an improvement in filter technology and, above all, the creation of test methods that can be used to produce reliable forecast values for emissions. As part of a research project, a measuring method has been developed which takes into account the influence of the filter cake thickness on the degree of separation efficiency. In addition, the degree of separation for an ultrafine aerosol as well as the determination of the total degree of separation for test dust as the basis for the assessment of the separation efficiency was established. The special feature of the new test method is the determination of the separation performance compared to nano-scale aerosols and the determination of the fine dust concentration in the clean gas...

Session: G5 - Surface Filtration I
Day: 23 October 2019
Time: 09:00 - 10:15 h

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