Review article

The article presents the research results of a new type of heat exchanger based on the Ranque-Hilsch vortex tube, which allows reducing the energy costs for the fuel gas heating. At developing the mathematical model, the authors took into account the maximum number of influencing factors, such as the heated gas temperature, the compressed natural gas temperature, the atmospheric air temperature, the finned area, etc. The results of calculations show that the proposed design fully justifies itself and can find a wide application in a unified gas supply system.