Macha, Dileep, Manimaran Renganathan, and Selvakumar Arockiadoss Arockia. 2016. “A Novel Design of a Counter-Flow Vortex Tube by Suitable Automation at Hot and Cold Ends ”. Journal of Automation, Mobile Robotics and Intelligent Systems 10 (3): 34-37. https://doi.org/10.14313/JAMRIS_3-2016/22.