Vortex Tube

thingiverse

I made this just to see if I could make one of these devises work without much knowledge of their optimum dimensions. Vortex tubes are devices which produce hot and cold air from pressurized air. Vortex tubes are occasionally used by machinists to spot cool items to as low temperatures as −50°C. I was able to get temperatures 25°C colder than ambient temperature with air pressure of 6bar. Print Settings Printer: Prusa i3 Rafts: No Supports: No Resolution: 0.3mm Infill: 50-100% Notes: Extra perimeters and high infill ratio are required to make it airtight and keeping it from exploding because of high pressure used. How to use Glue the nozzle and intake tube with diameter of 6.5-7mm in place with some epoxy/superglue. Apply some pressurized air to the inlet pipe while closing the hot end holes with some tape. The hot end gap is right size when there is just slight breeze coming from the cold end nozzle. Be careful when using for the first time, as there is a chance that the device could blow into pieces. I tested mine at 6bar pressure, but it should withstand up to 10bar pressures. The optimum pressure might be quite low.