I was wondering if anyone out there has any hands on practical experience with a Hilsch Tube. I have been thinking about running a refer and a water pre-heater off of one with compressed air, harvested from wind/hydro power (kinetic storage). Here is what a Hilsch tube is http://en.wikipedia.org/wiki/Vortex_tube
What did you do today to add joy to the world?
try a month in the "gardening gardeners" program to see if it soothes your soul
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