Hi sailoday28, valve opening time 15 ms, high pressure section is 360 bar, 60 degrees centigrade, low pressure region (in hose) is 1 bar, temperature 20 degrees centigrade. Hose internal diameter 6.35 mm, metal section internal diameter is 5.00 mm. Interestingly for a valve opeining time of 22...
Some more info: the hose has an internal lining of PTFE (Teflon) and the gas is oxygen (!). I've just seen a high speed video and there's signs of combustion during the explosion.
For clarification: at a lower gas pressure, the adiabatic heating always takes place at the end of the hose where there is a metal jacket section (several 100 mm long) in direct contact with the compressed gas. This is evident because the jacket gets hot (and the hose stays cold).
However, at...
Can someone please enlighten me with an explanation of the behaviour of a "gas hammer" effect that takes place when a high pressure gas valve is suddenly opened, causing a rush of high pressure gas into a closed-off section of high-pressure hose. This causes adiabatic heating - for which reason...
