An open-source thermodynamic software library

Tobias Kasper Skovborg Ritschel, Jozsef Gaspar, Andrea Capolei, John Bagterp Jørgensen

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This is a technical report which accompanies the article ”An open-source thermodynamic software library” which describes an efficient Matlab and C implementation for evaluation of thermodynamic properties. In this technical report we present the model equations, that are also presented in the paper, together with a full set of first and second order derivatives with respect to temperature and pressure, and in cases where applicable, also with respect to mole numbers. The library is based on parameters and correlations from the DIPPR database and the Peng-Robinson and the Soave-Redlich-Kwong equations of state.
Original languageEnglish
Place of PublicationKgs. Lyngby
PublisherTechnical University of Denmark
Number of pages26
Publication statusPublished - 2016
SeriesDTU Compute-Technical Report-2016


  • Thermodynamic functions
  • Software
  • Phase equilibrium

Cite this

Ritschel, T. K. S., Gaspar, J., Capolei, A., & Jørgensen, J. B. (2016). An open-source thermodynamic software library. Technical University of Denmark. DTU Compute-Technical Report-2016, No. 12