Thermophysical properties of gases

Calculation of thermophysical properties of gases relies on the principle of corresponding states. Viscosity and conductivity are expressed as the sum of the ideal gas property and a function of the reduced density  

Chapter 4. METHODS FOR THE CALCULATION OF HYDROCARBON PHYSICAL PROPERTIES 143 

It is necessary to determine first the properties of each component in the ideal gas state, next to weight these values in order to obtain the property of the mixture in the ideal gas state. 

This viscosity can be calculated by the equation proposed by Yoon and 

The viscosity coefficient fjP can also be derived from experimental data. 

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I. I. Lapidus, L. A. Nisel son, and A. L. Seifer in "Thermophysical Properties of Gases and Li iuids Rabinovich, Ed., Israel Program for Scientific Translations, Jerusalem, pp. 102-135, 1970. 

Values reproduced or converted from a tabulation by Tsykalo and Tabachnikov in V A. Rabinovich (ed.), Thermophysical Properties of Gases and Liquids, Standar-tov, Moscow, 1968 NBS-NSF transl. TT 69-55091,1970. The reader may be reminded that very pure hydrogen peroxide is veiy difficult to obtain owing to its decomposition or instability, c = critical point. The FMC Corp., Philadelphia, PA tech. bull. 67, 1969 (100 pp.) contains an enthalpy-pressure diagram to 3000 psia, 1100 K. 

Dtagram for Sodium Drawn from the Vargaftik et al. values in Ohse, R. W. Handbook of Thermodynamic and Transport Froperties of Alkali Metals Blackwel Sol Pubs. Oxford, UK. 1985. These values are identical with those of Vargaftik. N. B.. Handbook of Thermophysical Properties of Gases and Liquu, Moscow, 197 and the Hemisphere translation, p. 19. An apparent discontinuity exists between the superheat values and the saturation values not reproduced here. For a Mollier diagram in f.p.s. units from 0.1 to 150 psia, 1500 to 2700°R, see Fig. 3-36, p. 3-232 of the 6th edition of this handbook. An... 

Rabinovich, V. A., editor, THERMOPHYSICAL PROPERTIES OF GASES AND LIQUIDS, translated from Russian, U. S. Dept. Commerce, Springfield, VA (1970). 

Vargaftik, N. B. 1963. Handbook on thermophysical properties of gases and liquids. Moscow Fizmatgiz. 

A. M. Clausing, Simple Functional Representations for the Thermophysical Properties of Gases at Standard Pressure, ASHRAE Transactions (88/2) 1982. 

Values of P and v interpolated and converted from tables in Vargaftik, Handbook of Thermophysical Properties of Gases and Liquids, Hemisphere, Washington, and McGraw-Hill, New York, 1975. Values ofand s calculated from API tables published by the Thermodynamics Research Center, Texas A M University, College Station, t = triple point c = critical point. 

EQUATION OF STATE FOR BEREZAN NATURAL GAS. FROM THERMOPHYSICAL PROPERTIES OF GASES AND LIQUIDS. 

OF GASEOUS BUTYLENE. FROM THERMOPHYSICAL PROPERTIES OF GASES AND LIQUIDS. //ENGLISH TRANSLATION OF TEPLOFIZ. KHARAKTER VESHCHESTV./I/ 148-52,1968.//... 

THERMAL CONDUCTIVITY OF VAPOROUS CONVENTIONAL ALCOHOL FROM TEPLOFIZICHESKIE SVOISTVA GAZOV /THERMOPHYSICAL PROPERTIES OF GASES/. 

TEPLOFIZICHESKIE SVOISTVA GAZOV /THERMOPHYSICAL PROPERTIES OF GASES/. 

Details of applicable methods of statistical analysis of experimental data about thermophysical properties of gases and liquids are given in Refs. [0.4, 0.5, 0.29, 0.32, 1.3, 1.4, 3.2, 3.3, and 4.3]. The derivations of experimentally substantiated equations of state of the form (0.7) and (0.8) for Freons-21, -22, and -23 are given and discussed in the following chapters of the present handbook. Short commentary is given on references in which equations of state of nonconventional structure are derived for freons of the methane series under consideration. The specific searching techniques for the coefficients are also given there. 

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