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Specific Devices for Natural Ventilation
Published in Cristian Ghiaus, Francis Allard, Natural Ventilation in the Urban Environment, 2012
Claude-Alain Roulet, Cristian Ghiaus
Double-skin façades are used for several reasons – to: protect the indoor environment from outdoor noise;protect shading devices from rain and wind;allow for safe natural ventilation and passive night cooling; andrenovate the building skin without perturbing the occupants.
Design for Wind Resistance
Published in James Jones, Demetri Telionis, Aeroform, 2023
A variation of the sunscreen is the double envelope or double-skin glass facade. The term “double-skin” refers to an arrangement with a glass skin in front of the actual building facade. Double-skin glass facades are typically three layers of glass, one double-pane unit, and the other single-pane, separated by a ventilated air cavity, as in Figure 4.28. Solar control devices such as shades or louvers are typically placed in the cavity between the two skins. This reduces the heat gain resulting from solar radiation transmitted into the cavity by up to 25%.
Functional requirements of buildings
Published in Mike Riley, Alison Cotgrave, Michael Farragher, Building Design, Construction and Performance in Tropical Climates, 2017
Norhayati Mahyuddin, Farid Wajdi Akashah, Raha Sulaiman
Façade design should give controllable permeability to the light, heat and air. Moreover, the building’s façade should be able to be modified to respond to changes in the local climate conditions. Appropriate design of a building’s façade can significantly help to save energy. In bioclimatic design, the building’s façade is required to function as protector, insulator and integrator with the surrounding environment.
Energy and thermal analysis of DSF in the retrofit design of office buildings in hot climates
Published in Architectural Engineering and Design Management, 2022
Sahar Khabir, Roza Vakilinezhad
During the past decade, applying double-skin facade systems has been identified as one of the most effective strategies for reducing existing buildings’ energy consumption and CO2 emissions(Ghaffarianhoseini et al., 2016; Pomponi, Piroozfar, Southall, Ashton, & Farr, 2016). The double-skin facade system is typically a hybrid strategy that consists of a new layer of facade attached to an existing facade with an air gap between them. Meanwhile, the DSF system can be considered a potential energy retrofit solution for improving the energy efficiency of existing buildings (Pomponi et al., 2015; Sarihi, Mehdizadeh Saradj, & Faizi, 2021). On the other hand, the most common passive strategy for decreasing energy consumption through the building facade is to increase or decrease the solar reflectance of the outer materials (Anna Laura Pisello, 2017). Despite numerous studies examining the effects of DSF systems on energy consumption, daylight, and thermal performance, no study has evaluated the use of various types of cool materials in conjunction with DSF systems to reduce energy consumption and greenhouse gas emissions. Hence, there is a need to examine how cool materials affect the thermal performance and energy efficiency of double-skin facades, especially in hot climates.
Performance study of building integrated photovoltaic modules
Published in Advances in Building Energy Research, 2018
A. Karthick, K. Kalidasa Murugavel, L. Kalaivani, U. Saravana Babu
The BIPV systems are used in high-rise commercial buildings that serve both power generations and aesthetical appearance. In general the building roofs may either be flat, curved or sloped. In all the types of roofs, any BIPV systems such as opaque, transparent or semi-transparent may be used based on requirement of the occupants. In the case of pitched roof applications, it may be in the form of tiles, shingles, metal, opaque, and transparent roof. The facades include walls, windows, and other elements such as lintels and sunshades. The other applications of BIPV include urban structures, such as very tall commercial buildings, super markets, and architectural fabrics. The classifications of BIPV integration is presented in Figure 1.
Technologies used in responsive facade systems: a comparative study
Published in Intelligent Buildings International, 2022
Negar Heidari Matin, Ali Eydgahi
Characteristics of a traditional static facade provide limited energy and light performance in various environmental conditions (Selkowitz and Aschehough 2003). The traditional facade limitations, which affect static facade energy performance consist of a high rate of heat transmission (conduction/ radiation/ convection), high rate of daylight admittance, high rate of moisture migration and limited esthetic expression (Kim and Jerratt 2011; Sorensen 2013). Studies have shown that these modifications created by advanced technologies can improve the performance of the active facade by 40% to 65% in comparison with the static facades (Dewidar et al. 2010).