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Title: Vortex Technology In Gas Transmission/ Gas Distribution Operations
Author: Lev Tunkel
Source: American Gas Association 1999
Year Published: 1999
Abstract: Vortex Tube based technology has recently emerged to apply the Vortex phenomenon for some particular industrial needs. A Vortex Tube (VT) is a device with no moving parts where an expending gas flow undergoes a temperature division (vortex phenomenon) forming two inner thermal currents: internal-cold and external-hot. In gas downstream operations, with the requirements for sequential pressure reduction of transmitted gas, the vortex technology application looks highly natural: the Vortex Tube, operating under available pressure differential, creates an actually free cooling and heating duty to be utilized for industrial needs. In a conventional VT (Figure 1) which features two openings to discharge the thermal currents separately, the Vortex performance results in creation of two separate flows: one-very cold and dried to a low dew point, another- heated and enriched with vaporized moisture. The difference between inlet gas temperature To and cold fraction temperature T1: To - T1 DT1 as well as the difference between temperature of hot flow T2 and inlet gas flow To: T2 - To DT2 represents the Vortex Tubes efficiency. This parameter depends on the VTs geometrical parameters and generally, is proportional to the Vortex inlet/outlet gas flow pressure ratioP.

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