Anomalous properties of some fluids - with high relevance in energy engineering - in Their Pseudo-critical (Widom) Region

A. Imre, Axel Groniewsky, Gábor Györke, Adrienn Katona, Dávid Velmovszki

Research output: Contribution to journalArticle

4 Citations (Scopus)


Recent results are shown about the peculiarities of the pseudo-critical region, with special emphasis on properties important for energy production and conversion. The property-map of some materials, which are relevant as model fluids or as working / cooling fluids in energy engineering (argon, methane, water and carbon dioxide) and their relative positions to various adiabats - influencing their stability through the anomalous properties - are presented. Some potential technological problems related to the existence of these anomalies are discussed.

Original languageEnglish
Pages (from-to)276-285
Number of pages10
JournalPeriodica Polytechnica Chemical Engineering
Issue number2
Publication statusPublished - Jan 1 2019



  • Adiabatic processes
  • Compressibility
  • Specific heat
  • Speed of sound
  • Stability
  • Thermal expansion

ASJC Scopus subject areas

  • Chemical Engineering(all)

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