Investigations on stratification devices for hot water stores

Elsa Andersen, Simon Furbo, Matthias Hampel, Wolfgang Heidemann, Hans Müller-Steinhagen

Research output: Contribution to journalJournal articleResearchpeer-review


The significance of the thermal stratification for the energy efficiency of small solar-thermal hot water heat stores is pointed out. Exemplary the thermal stratification build-up with devices already marketed as well as with devices still in development has been investigated experimentally and theoretically, taking into account different realistic operation conditions. The methods (selective temperature measurement, non-invasive field measuring methods PIV and LIF, Computational Fluid Dynamics (CFD)) suitable for the experimental and theoretical analysis of thermal stratification devices are introduced.
Original languageEnglish
JournalInternational Journal of Energy Research
Issue number3
Pages (from-to)255-263
Publication statusPublished - 2008


  • LIF
  • PIV
  • inlet stratification pipes
  • Solar tanks
  • CFD
  • thermal stratification

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