Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: dust explosion testing

Sortuj według:

Ogranicz wyniki do:

Alternative ignition source for testing dust explosion characteristics in closed vessel

Porowski R.

Archivum Combustionis

2014

Vol. 34 nr 1

71--82

To investigate the dust explosion characteristics for lycopodium and niacin at various concentrations the experimental study was performed in 20-litre spherical chamber made of stainless steel. The initial conditions of tested dusts were 1 bar and 200C. By means of pressure measuring system with two piezoelectric PCB transducers, the pressure-time curves that developed following the ignition were recorded. Instead of two chemical ignitors each of 5 kJ we developed our own new high-voltage spark generator. The idea of applied circuit in HV-spark generator is described in ASTM E-2019 and EN 13821. High-voltage pulse generated in the secondary coil of high-voltage transformer creates the spark breakdown of the gap between electrodes installed in the center of 20-litre sphere.