Salztransport und Phasenumwandlung – Modellierung und numerische Lösung im Simulationsprogramm Delphin 5

Research output: Contribution to journalResearch articleContributedpeer-review


  • Andreas Nicolai - , Syracuse University (Author)
  • John Grunewald - , Syracuse University (Author)
  • Jianshun S. Zhang - , Syracuse University (Author)


In this article an overview is given of the equations describing the coupled heat, moisture and salt transport including phase transitions in porous building materials which have been implemented in the simulation program Delphin 5. Based on a convection-diffusion model for transport of binary salt solutions the simulation code was extended by a transport model for salt mixtures. The model allows description of transport and phase transition processes of Na-K-Cl-NO(3)-SO(4)-H(2)O systems. A kinetic model for the phase transitions crystallization and dissolution is presented that can also be used for hydration and dehydration reactions. Particular focus also lies on the description of models for the calculation of thermodynamic properties of salt mixtures and their impact on material functions and on heat and moisture transport processes.
Translated title of the contribution
Modeling and numerical solution of salt transport and phase transition in the simulation program Delphin 5


Original languageGerman
Pages (from-to)231-239
Number of pages9
Issue number3
Publication statusPublished - Jun 2007
Externally publishedYes

External IDs

RIS urn:539A5C08C9966C43B3CB97FD9DA88324