Natural ventilation in apartment dwellings in densely built regions could improve occupants' summer thermal comfort and reduce the rapidly increasing energy demand for cooling. This research identified natural ventilation strategies as energy efficient refurbishment solutions for domestic buildings. Four retrofit strategies were tested against the existing single-sided ventilation of an urban multi-storey apartment building in Greece, using computational fluid dynamics simulations. During buoyancy driven flows, acceptable ventilation rates for comfort could be achieved with the implementation of a wind-catcher and a dynamic façade. Under wind-driven ventilation, these strategies delivered significant increases in ventilation rates (up to seven times) and contributed to reductions in indoor air temperatures of up to 2 °C, relative to the existing strategy. Cooling by water evaporation enhanced the cooling performance of the wind-catcher providing up to 4 °C temperature reductions. The successful performance of the proposed strategies highlights their significant potential for reducing energy consumption and improving thermal comfort.
- Mediterranean dwellings
- Natural ventilation
- computational fluid dynamics (CFD)
- passive cooling
- thermal comfort
ASJC Scopus subject areas
- Control and Systems Engineering
- Civil and Structural Engineering
- Building and Construction
- Electrical and Electronic Engineering
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- Department of Architecture & Civil Engineering - Professor
- Centre for Doctoral Training in Decarbonisation of the Built Environment (dCarb)
- Centre for Climate Adaptation & Environment Research (CAER)
Person: Research & Teaching, Core staff