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P I on Steam performance inside vortex tube!

By: P I [1983] 3 Stars
Date: Friday, May 19, 2017
Time: 1:08:15 PM

Actually I have started this discussion with a thought cum question in my mind. So far, only air/gas has been used in vortex tubes and getting 20°C colder stream is very common. But, does that can be achieved with saturated steam? As for example, if we use saturated steam at 100°C temperature and at 1 barA pressure has been used in a vortex. The speed has been created by a high speed blower instead of compressing the saturated steam to get the forced vortex. Now, if the temperature of the colder flow will be at 80°C, then how much steam has been condensed?
For vortex tubes, the density and pressure of both the input and of the output flows remains the same. That means, the flow coming out of the colder section at 80°C temperature and at the same pressure i.e. 1 barA, that will mean that around 54% of steam in the colder stream has lost their LHV. Just imagine such huge amount of enthalpy has been transferred to the hot flow and where its temperature will rise if all the enthalpy lost from the cold flow will be added to the hot flow.
Thats why I want to know the behaviour of saturated steam inside a vortex tube, especially about the enthalpy distribution between the hot and the cold flow. I have searched net but havent found even a paper on this matter and it seems that this subject need research and that may lead to some good heat pump mechanism in future.

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