REMOVAL OF FINE PARTICULATE MATTER FROM EXHAUST GASES BY METALLIC MICROSIEVES

摘要

Metallic microsieves are promising filter media for removing fine particulate matter from gases. Therefore, a study has been carried out to show their filtration performance (pressure drop and filtration efficiency) with respect to different boundary conditions (volume flow, temperature). Experiments showed high particle retention rates after a short time, depending on the hole diameter. By applying microsieves with an average pore diameter of 8 urn, a retention rate of more than 99% could be obtained after 90-160 s. The practical application of microsieves as a filter in the exhaust gas of wood fired furnaces is shown to give good results.