FREZCHEM2 A Chemical Thermodynamic Model for Electrolyte Solutions at Subzero Temperatures

Abstract

This report documents a Fortran version of a chemical thermodynamic model for aqueous electrolyte solutions at subzero temperatures, FREZCHEM2, which is a further development of the FREZCHEM model. The model uses thermodynamic data of Spencer-Moller- Weare that permit the calculation of chemical equilibria in the Na-K-Ca-Mg-Cl-S04-H2O system between -60 and 25 deg. C at atmospheric pressure. It applies the Gibbs energy minimization method for chemical equilibrium computation combined with Pitzer equations for activity coefficients and water activity calculation. phases.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1997
Accession Number
ADA333040

Entities

People

  • Giles M. Marion
  • Mikhail V. Mironenko
  • Ronald E. Farren
  • Steven A. Grant

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aqueous Solutions
  • Chemical Equilibrium
  • Chemical Reactions
  • Chemistry
  • Computations
  • Computers
  • Electrolytes
  • Engineering
  • Equations
  • Freezing
  • Phase
  • Phase Diagrams
  • Solid Phases
  • Standards
  • Thermochemistry
  • Thermodynamics

Fields of Study

  • Chemistry

Readers

  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation
  • Electrochemical Engineering/ Fuel Cell Technologies