Recovering Energy at Entry of Natural Gas into Customer Premises by Employing a Counter-Flow Vortex TubeM. Farzaneh-Gord and M. KargaranOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 65 6 (2010) 903-912DOI: https://doi.org/10.2516/ogst/2009074