HEPA filter type 2s are guaranteed to filter up to 500DegC for 10mins. Has anybody determined the DF at this temp as most manufacturers' data is only for 100DegC or do not state the DF ie the filter media's holes enlarge, hence the DF drops, although some particles would also increase in size...
Does anybody out there know how to determine the impact on concrete from primary fragments, travelling at approx 2-3km/s?
Or a change of formulae to help.
At present looking to employ blast dampers to protect ductwork and HEPA filters. However trying to substantiate the blast valves is concerning. What other options are there, or how to substantiate the valves? Any case data on non operation would be useful ie after how many firings? My client...
I am currently trying to use Hevacomp for general pipesizing. My client prefers the output. Manually I have a clear approach but tedious. When using the software it requests for a K value, fairly ok with this, dimensionless and there are lists from manufacturers. It also requires an acceptable...
