Transport and thermodynamic properties of SF/sub 6/ gas contaminated by PTFE reinforced with Al/sub 2/O/sub 3/ and BN particles

Thermodynamic and transport properties of two-temperature SF6 plasmas

“…Comparisons with recent tabulated property values provided by other researchers are presented and a general agreement can be observed. Our calculated specific heat at constant pressure compares satisfactorily with works of Chervy et al 11 and Paul et al 13 except in the temperature range where multiple dissociations occur. The deviation is attributed to the discrepancies of species composition which depends on individual specie data including energy levels, associated degeneracies of the species present and reaction energies.…”

“…[5][6][7][8][9][10][11][12][13] For two-temperature plasmas, different authors have recently displayed calculations of the composition, thermodynamic, and transport properties for some pure gases and some gas mixtures. [14][15][16][17][18][19][20][21][22][23][24][25] As for pure SF 6 gas, several papers have so far dealt with the particle compositions in twotemperature state.…”

Gas-Flow Simulation With Contact Moving in GCB Considering High-Pressure and High-Temperature Transport Properties of SF<tex>$_6$</tex>Gas

“…The outline of calculation methods is as follows. Details can be referred to in the literature [10], [11].…”

Transient Response Simulation of Downstream Thermofluid Field in a Gas Circuit Breaker during Current Interruption

“…The grid size is especially changed adjustable to the roughness pattern to obtain the easy convergence at rough surface. The transport and thermodynamic properties of SF 6 gas are given as functions of temperature and pressure (9), (10) . The roughness pattern inside the exhaust tube in the arbitrary unit is shown in Table 1.…”

“…In the present study, the transient response of SF 6 thermofluid field in the exhaust tube under high temperature, high pressure and high velocity conditions is analyzed by taking compressible effect and SF 6 transport properties into account (9), (10) , related to the available experimental data of real test facility (11), (12) . Furthermore, the effects of roughness pattern inside the exhaust tube on the cooling process of SF 6 hot gas flow for transient time and possible breakdown region near exhaust tube exit are clarified by computational simulation in detail to avoid the SF 6 hot gas ground fault at the applied transient recovery voltage (13) .…”