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CALCULATION OF THERMODYNAMIC PROPERTIES OF FLUID MIXTURES WITH AN EQUATION OF STATE USING NEW MIXING AND COMBINING RULES. DERIVATION OF THE MIXING AND COMBINING RULES.

[In German. / En allemand.]

Author(s) : SIEVERS U., SCHULZ S.

Type of article: Article

Summary

A NEW EQUATION OF STATE FOR FLUID MIXTURES OF SIMPLE, NONPOLAR COMPONENTS, BASED ON BENDER'S EQUATION OF STATE FOR PURE FLUIDS, IS GIVEN. ITS COEFFICIENTS ARE CALCULATED FROM THOSE OF THE PURE FLUIDS BY NEW, SEMI-EMPIRICAL MIXING AND COMBINING RULES, WHICH ARE DERIVED FROM STATISTICAL MECHANICS AND CORRESPONDING-STATES CONSIDERATIONS FOR BINARY MIXTURES. THE CONSTANTS, THE CRITICAL TEMPERATURES, AND THE CRITICAL VOLUMES OF THE PURE FLUIDS AS WELL AS TWO BINARY INTERACTION PARAMETERS FOR EACH BINARY MIXTURE ARE REQUIRED FOR THE APPLICATION OF THIS NEW EQUATION. THE MIXING AND COMBINING RULES CAN BE EXTENDED TO MIXTURES WITH MORE THAN TWO COMPONENTS. THE NEW EQUATION MAY BE USED FOR CALCULATION OF THERMODYNAMIC PROPERTIES OF MIXTURES IN THE WHOLE FLUID REGION UP TO PRESSURES OF 50,000 KPA AND ABOUT 2.8 TIMES THE CRITICAL DENSITY.

Details

  • Original title: [In German. / En allemand.]
  • Record ID : 1982-1474
  • Languages: German
  • Source: VDI-Forsch. - n. 609
  • Publication date: 1982
  • Document available for consultation in the library of the IIR headquarters only.

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