Natural ventilation strategies for indoor thermal comfort in Mediterranean apartments

Eftychia Spentzou, Malcolm Cook, Stephen Emmitt

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27 Citations (SciVal)
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Natural ventilation strategies as effective low energy refurbishment solutions are identified within this research study, for an existing urban multi-storey apartment building in Athens, representative of over four-million Greek urban residential buildings. Retrofit strategies were evaluated using occupant comfort criteria and the existing ventilation strategy, for a single apartment using dynamic thermal simulations. These strategies included individual day and night ventilation, a wind-catcher and a dynamic façade. Suitable openings operation in response to environmental parameters provided sufficient day and night ventilation and occupant comfort. The inclusion of a wind-catcher yielded very little improvement to the ventilation performance. However, the combined operation of the wind-catcher and the dynamic façade delivered operative temperature reductions of up to 7 °C below the base-case strategy, and acceptable ventilation rates for up to 65% of the cooling period. The successful performance of the proposed strategies highlights their potential for reducing energy consumption and improving thermal comfort in a large number of buildings in hot climates.

Original languageEnglish
Article numberBUIL-D-17-00027
Pages (from-to)175-191
Number of pages17
JournalBuilding SImulation: An international Journal
Issue number1
Early online date1 Jun 2017
Publication statusPublished - 1 Feb 2018


  • dynamic façade
  • dynamic modeling
  • thermal comfort
  • ventilation
  • wind-catcher

ASJC Scopus subject areas

  • Building and Construction
  • Energy (miscellaneous)


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