Recent content by Airou

Yes, I want to understand how the heat transfer coefficient changes as the temperature and pressure of the air in the cylinder falls. Intuitively I would have thought that a higher pressure gas has a higher heat transfer coefficient as the molecules would be closer together enabling more...

Thanks for the reply. I'm trying to make a model of the system that allows me to vary the starting pressure in the cylinder and deplete it to various end pressures as I vary the time period over which the depressurisation occurs. Typically though I will be at the 300 bar level where ideal...

Hi guys, Here's an interesting problem for you. I'm trying to understand what happens to the temperature of air cylinders as the compressed air within is rapidly expanded to see if the surface in contact with the expanding air gets so cold it passes through the ductile to brittle transition...

Thanks for the reply. The rigs I'm looking to test are made out of a whole load of components, not just one pressure vessel - refrigeration parts, flat plate heat exchangers, a compressor, pump, copper pipe etc. They are experimental rigs and are assembled by hand, so all the brazing is done...

Hi everyone, I'm writing a safety case for pressure testing equipment using gaseous nitrogen (hydraulic pressure testing in this case is impractical) and I am trying to estimate the energy transferred to a projectile in the case of something bursting so I can sensibley mitigate against this...