Calculation of Material Properties of SF<sub>6</sub>/CF<sub>4</sub> Gas Mixture Based on SRK State Equation

ZHONG Jianying; ZHAO Xiaomin; LI Baozeng; LIN Xin; GENG Zhenxin

doi:10.13296/j.1001-1609.hva.2016.12.007

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Calculation of Material Properties of SF₆/CF₄ Gas Mixture Based on SRK State Equation

更新时间：2025-04-26

- Calculation of Material Properties of SF₆/CF₄ Gas Mixture Based on SRK State Equation
- High VoltageApparatus Vol. 52, Issue 12, Pages: 48-53(2016)
- 作者机构：
  
  1. 平高集团有限公司
  2. 沈阳工业大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.12.007
  CLC： TM21
- Published：2016
- 稿件说明：
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[1]钟建英,赵晓民,李宝增,林莘,庚振新.基于SRK状态方程的SF_6/CF_4混合气体物性参数计算[J].高压电器,2016,52(12):48-53.

ZHONG Jianying, ZHAO Xiaomin, LI Baozeng, et al. Calculation of Material Properties of SF₆/CF₄ Gas Mixture Based on SRK State Equation[J]. High voltageapparatus, 2016, 52(12): 48-53.
[1]钟建英,赵晓民,李宝增,林莘,庚振新.基于SRK状态方程的SF_6/CF_4混合气体物性参数计算[J].高压电器,2016,52(12):48-53. DOI： 10.13296/j.1001-1609.hva.2016.12.007.

ZHONG Jianying, ZHAO Xiaomin, LI Baozeng, et al. Calculation of Material Properties of SF₆/CF₄ Gas Mixture Based on SRK State Equation[J]. High voltageapparatus, 2016, 52(12): 48-53. DOI： 10.13296/j.1001-1609.hva.2016.12.007.

摘要

采用混合气体是解决气体开关设备低温运行的有效途径之一。文中基于真实气体模型

建立SRK状态方程的迭代形式

给出了SF

与CF

气体压力值在0.1

MPa

温度在223

23 K范围内压缩因子曲线

分析了温度与压力对压缩因子的影响

给出了不同压力与温度下

与CF

真实气体与理想气体压缩因子的偏离情况

确定混合气体的压缩因子的混合规则

分析了温度与压力对压缩因子的影响

确定混合气体的混合规则

获得了SF

、CF

及混合气体饱和蒸汽压与等密度曲线

得到了混合气体在不同使用条件下的充气与补气方案。为进一步计算混合气体的热力学参数与流动特性提供数据支撑。

Abstract

Adopting mixed gas in high-voltage apparatus is an effective way to ensure normal operation at low-temperature. In the present work

a real gas state model is used to establish an iterative form of the SRK state equations and the influence of temperature and pressure on the compression factor analyzed. The compression factor curve are given within the temperature 223 K to 323 K and gas pressure from 0.1 MPa to 1 MPa

the influence of temperature and pressure on the compression factor are analyzed

real gas and ideal gas compressibility factor deviations of SF

and CF

are obtained

the mixing rule of mixed gas is determined. The rule of mixing the gases is developed and the saturated vapor pressure curves and density curves for SF

and their mixtures obtained. A procedure of inflation and reinflation of the mixture under different conditions is established.This paper provides basic data for calculating the thermodynamic parameters and flow characteristics of mixed gas.

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⁰

Calculation of Material Properties of SF6/CF4 Gas Mixture Based on SRK State Equation

DOI：10.13296/j.1001-1609.hva.2016.12.007

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Calculation of Material Properties of SF₆/CF₄ Gas Mixture Based on SRK State Equation