Is nitrous oxide safe? - Swiss Propulsion Laboratory

More documents

Recommendations

Info

Potential ti risks• N 2 O is normally used under saturated condition: 2-phase flow with high potential ofwater hammering adiabatic compression of cavitation bubbles "Dieseling"specially when contaminated with fuel and at combustible surfaces like seals, fillinghoses, carbon fiber tanks etc.)Imploding vapor bubble with jet (up to100000 bar at the ground of the jet andtemperatures of several thousand K !)7 © SPL, 5.10.2007
Potential ti risks 2N 2 O is a monopropellant (as H 2 O 2 or Hydrazine)!• Under certain conditions more energy is produced by the decomposition thannecessary to reach the decomposition temperature run away reaction!N 2 O(g) —> N 2 (g) + ½O 2 (g) + 82 kJ/mol• Particularly the vapor phase can lead to a deflagration or even a detonation atpressures > 5.7 bar if a contamination of fuel is present• Catalysts can lower the critical temperature to 250 °C (E.g. copper and its <strong>oxide</strong>s)8 © SPL, 5.10.2007
Page 10 and 11: Potential ti risks 2• Very good s
Page 12 and 13: Suggestions• Remote operated fill
Page 14 and 15: Sources1. "Nitrous Oxide Trailer Ru

Is nitrous oxide safe? - Swiss Propulsion Laboratory

Create successful ePaper yourself

Delete template?

Save as template?