I have a liquid that is stored at pressure. This liquid is then released to a lower pressure where it should become a gas. The problem is how long does it take for the liquid to turn to gas.
There must be some delay - even a very small one - but how to calculate it.
Example - a jet of liquid butane is sprayed into the atmosphere, according to a simple Joule Thompson expansion it should all turn to gas instantly. But it takes time, does anyone know how to determine the time? If there is some momentum in the process what are the controlling factors and are there any constants one can use in an equation.
Another way to look at this is how far downstream of the jet of butane will it be gas, 1mm, 100mm - depends on the exit velocity I suppose.
Any ideas welcomed.
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There must be some delay - even a very small one - but how to calculate it.
Example - a jet of liquid butane is sprayed into the atmosphere, according to a simple Joule Thompson expansion it should all turn to gas instantly. But it takes time, does anyone know how to determine the time? If there is some momentum in the process what are the controlling factors and are there any constants one can use in an equation.
Another way to look at this is how far downstream of the jet of butane will it be gas, 1mm, 100mm - depends on the exit velocity I suppose.
Any ideas welcomed.
246