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Measurement and prediction of the transport properties of natural gases
Čapla, L. ; Buryan, P. ; Pátek, Jaroslav ; Klomfar, Jaroslav
Measurements of the thermal conductivity of two samples of natural gases performed with a transient hot-wire apparatus are reported. The prediction method for the thermal conductivity of gas mixtures suggested by Stiel and Thodos is tested against the obtained experimental data. The deviations of the experimental thermal conductivities form their calculated values lie within the band from ?2% to 2.5% in the temperature and pressure region relevant for natural gas transport.
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(P,V,T) Behaviour of Benzene + C3-Alkylbenzene Liquid Systems at Temperatures 298.15 K to 328.15 K
Linek, Jan ; Morávková, Lenka
Densities of liquid systems benzene + isopropylbenzene, benzene + 1,2,4-trimethylbenzene, and benzene + 1,3,5-trimethylbenzene were measured at temperatures (298.15, 308.15, 318.15 a 328.15) K by means of a vibrating-tube densimeter. Excess molar volumes calculated from the density data yield the temperature dependence of this quantity within 298-328 K.
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