A transient thermal sensation equation fit for the modified Stolwijk model

Paul Roelofsen*, Kaspar Jansen, Peter Vink

*Corresponding author for this work

Research output: Contribution to journalComment/Letter to the editorScientificpeer-review

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There are different thermal perception models linked to a mathematical thermophysiological human model, with which the thermal sensation under stationary and/or dynamic conditions can be evaluated. Each of these perception and thermophysiological models have their own field of application. Stolwijk developed a thermophysiological human model without an associated thermal perception model, which today is still the basis for other mathematical thermophysiological models. Fiala developed the FPC model, also based on the Stolwijk model, and is one of the latest developments in the field of thermophysiological human models. In the FPC model, an equation is included with which the thermal sensation under stationary and dynamic conditions can be assessed; the so-called Dynamic Thermal Sensation (DTS). The DTS equation is, however, specifically developed for use in combination with the FPC model. In contrast to the Stolwijk model, the source code of the computer programs of the later developed thermophysiological human models is not freely available, which limits the use and applicability of the models in practice. It is precise because of the availability of the source code that the Stolwijk model is still used in industry and the research world. The question, therefore, arises: ‘To what extent can a human transient thermal sensation equation be derived, combined with the Stolwijk model, in a similar way to that used for the DTS equation in the FPC model?’.

Original languageEnglish
Number of pages15
JournalIntelligent Buildings International
Publication statusPublished - 2021


  • computer simulation
  • indoor environmental quality
  • Mathematical modeling
  • thermal comfort
  • workplace


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