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dingweiyang

金虫 (小有名气)

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注册: 2013-11-29
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专业: 化工系统工程

[求助] 请教热力学达人一道热力学解题

求助一题：
P1=10000kPa，T1=300K的硅烷压缩气体经调节阀降压后压力P2=600kPa，则T2=？（节流前后焓值不变）

硅烷的相关物性参数如下：
Molecular WeightMolecular weight  : 32.117 g/mol
Solid phaseMelting point  : -184.67 °C
Latent heat of fusion (1,013 bar, at melting point) : 20.777 kJ/kg
Liquid phaseLiquid density (1.013 bar at boiling point) : 582.621 kg/m3
Liquid/gas equivalent (1.013 bar and 15 °C (59 °F)) : 431.6 vol/vol
Boiling point (1.013 bar) : -112.15 °C
Latent heat of vaporization (1.013 bar at boiling point) : 377.21 kJ/kg
Critical pointCritical temperature  : -3.45 °C
Critical pressure  : 48.4 bar
Critical density  : 234.496 kg/m3
Triple pointTriple point temperature  : -184.67 °C
Triple point pressure  : 0.0001964 bar
Gaseous phaseGas density (1.013 bar at boiling point) : 2.49 kg/m3
Gas density (1.013 bar and 15 °C (59 °F)) : 1.35 kg/m3
Compressibility Factor (Z) (1.013 bar and 15 °C (59 °F)) : 0.999
Specific gravity  : 1.12
Specific volume (1.013 bar and 25 °C (77 °F)) : 0.755 m3/kg
Heat capacity at constant pressure (Cp) (1.013 bar and 25 °C (77 °F)) : 0.0428 kJ/(mol.K)
Viscosity (1.013 bar and 0 °C (32 °F)) : 1.0704E-04 Poise
Thermal conductivity (1.013 bar and 0 °C (32 °F)) : 20.3447 mW/(m.K)

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