E3S Web Conf.
Volume 85, 2019EENVIRO 2018 – Sustainable Solutions for Energy and Environment
|Number of page(s)||8|
|Section||Solar Energy in Buildings|
|Published online||22 February 2019|
Solar protection influence on dynamic insulation efficiency of double skin façades
“Gheorghe Asachi” Technical University of Iaşi, Faculty of Civil Engineering and Building Services, Romania
* Corresponding author: email@example.com
The objective of the study was to perform a numerical analysis in order to determine the best position for placing sunscreen inside the channel of a double skin façade insulation relative to dynamic insulation efficiency, using ANSYS-Fluent software. The analysis was performed for summer conditions in forced convection for two airspeed regimes inside the channel: 0.2m/s and respectively 0.5m/s. Regime is considered permanent and the only parameter changed is the position of the blinds in the channel. Results are shown by spectra and profiles of temperature and velocity in order to analyse thermodynamic behaviour of a double skin façade. The numerical results emphasize that effectiveness of sunscreen such as blinds, is proportional to the flow velocity inside the channel and inversely proportional to the distance from the outer glazing. Ranked as the most effective sun protection is when it is located at the outer glazing and air velocity at the entrance is 0.5m/s.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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