Stability Analysis of Thermodynamic Systems: Heat Conduction in Solids

Daming Lou (Corresponding author), Siep Weiland (Corresponding author)

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)
85 Downloads (Pure)


This paper addresses the fundamental difference between equilibria of thermodynamic systems and equilibria of autonomous state space systems. The notion of stability of thermodynamic equilibria is analyzed in terms of an entropy generating function that classifies as a Lyapunov function to prove asymptotic stability of thermal equilibria. The stability analysis is performed for both finite and infinite dimensional systems. It is shown how the proposed Lyapunov function naturally extends to assess stability of interconnected thermal systems. A number of examples is given to demonstrate the time evolution of the Lyapunov function.
Original languageEnglish
Pages (from-to)11533-11538
Number of pages6
Issue number2
Publication statusPublished - 2020
Event21st World Congress of the International Federation of Aufomatic Control (IFAC 2020 World Congress) - Berlin, Germany
Duration: 12 Jul 202017 Jul 2020
Conference number: 21


  • Lyapunov functions
  • Thermal equilibria
  • Thermal stability


Dive into the research topics of 'Stability Analysis of Thermodynamic Systems: Heat Conduction in Solids'. Together they form a unique fingerprint.

Cite this