Niacin, lycopodium and polyethylene powder explosibility in 20-L and 1-m(3) test chambers

摘要

An experimental program has been undertaken to investigate the explosibility of selected organic dusts. The work is part of a larger research project aimed at examination of a category of combustible dusts known as marginally explosible. These are materials that appear to explode in laboratory-scale test chambers, but which may not produce appreciable overpressures and rates of pressure rise in intermediate-scale chambers. Recent work by other researchers has also demonstrated that for some materials, the reverse occurs - i.e., values of explosion parameters are higher in a 1-m(3) chamber than one with a volume of 20 L. Uncertainties can therefore arise in the design of dust explosion risk reduction measures.