Local ventilation solution for large warm emission sources

Casting fumes lower the air quality in foundries. So a local ventilation solution for the mould casting area was designed and dimensioned with CFD calculations. The most efficient solution appears to be a push-pull ventilation system. A prototype was built and tested in actual operation foundry. The capture efficiencies with push jet were determined by the tracer gas method, they varied between 40 and 80 % in function of the distance between the source and the exhaust.