Measuring and estimating airflow in naturally ventilated double skin facades

Preliminary Quantification of the Passive Role of Solar Rooftop Shading in Bahrain: Towards Energy Reduction for Cooling and Energy Resilience

“…Heat causes a decrease in performance, which is a hindrance to the use of photovoltaics in the region, despite the abundance of solar radiation [11]. However, when used as the exterior layer of a double skin wall, the convection effect [12], [13] created between the two layers could cool down the panels and reduce the heat-induced loss of performance. For a truly countrywide adoption of PVs in housing, it would be desirable to investigate the performance of shading, as well as energy production, in the main cardinal directions, as to create a solid reference that would result in accurate energy modelling and therefore increase the confidence of the public on such architectural solutions.…”

Modelling naturally ventilated double skin facade in Modelica

“…temperatures, solar irradiance and wind. Moreover, existing experimental investigations (Kalyanova et al 2007; Marques da Silva et al 2015) underline multiple challenges related to investigation of DSF performance. Airflow measurement in a naturally ventilated cavity, measurement of the temperature under the strong solar exposure, as well as lack of standard, well-studied experimental methods for the measurement of the surface temperatures (with and without solar exposure) are found among the challenges.…”

"Experimental Validation of a Model for Naturally Ventilated Double-Skin Facades"

“…Highly dynamic performance, initiated by fluctuating boundary conditions explain great complexity of experimental work for double-skin façade performance evaluation and thereby limited number of experimental studies to support validation of new and existing models for double-skin facades. Furthermore, existing experimental investigations (Kalyanova et al 2007;Marques da Silva et al 2015) underline multiple challenges related to investigation of DSF performance. Airflow measurement in a naturally ventilated cavity, measurement of the temperature under the strong solar exposure, as well as lack of standard, well-studied experimental methods for the measurement of the surface temperatures (with and without solar exposure) are found among the challenges.…”