Natural ventilation in the double skin facade with venetian blind

Xu, Xing; Yang, Zhao

doi:10.1016/j.enbuild.2008.02.012

Cited by 38 publications

(20 citation statements)

References 12 publications

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“…DSF technology has been defined as one of the best options for an efficient management of the interaction between outdoor and indoor spaces [3]. Research on DSFs has been conducted in great details from a variety of perspectives, such as shading elements (including plants) in the cavity [4][5][6][7], airflow analysis and prediction [8][9][10][11][12], fire and smoke spreading issues [13][14][15][16][17], and natural ventilation [18][19][20][21]. Regardless of the drivers behind the decision to adopt DSF technologies-which can range from aesthetic reasons to more technical ones e.g.…”

Section: Introductionmentioning

confidence: 99%

Energy performance of Double-Skin Façades in temperate climates: A systematic review and meta-analysis

Pomponi

Piroozfar

Southall

et al. 2016

Renewable and Sustainable Energy Reviews

119

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Double Skin Façades (DSFs) are applied in both new and existing buildings, especially in temperate climates. Research in this area is steadily growing; however, there is a lack of conclusive results in available literature about energy performances related to the DSF, thus limiting a better and more informed application of this technology in the Architecture Engineering and Construction (AEC) sector. This paper systematically reviews more than 50 articles which have dealt with the energy related performance of DSFs in temperate climates and provide a meta-analysis of the numerical findings published in the studies examined. Energy related figures are presented separately for embodied and operational energy. Specifically, the operational energy end-uses taken into account are heating, cooling, lighting, and ventilation. Numerical results in the literature are normalised and expressed in form of percentage of maximum energy reduction/increment compared to a base case (e.g. a single skin case) used as a reference in the corresponding studies. Such an approach is meant to provide a reliable comparison of published figures. Key façade parameters (DSF spatial configurations, cavity width and ventilation), building parameters (orientation and climatic areas) and the methodological approaches used in the reviewed studies were deployed as clustering criteria. Several clustering criteria present extremely spread values, indicating the necessity to further investigate, understand, and attempt to reduce such high discrepancies in operational energy performances. Additionally, and more importantly, almost no information exists on DSFs life cycle energy figures, highlighting an important gap that requires further research.Suggested Reviewers: Mohamad Kiani PhD Principal Sustainability Consultant, Baily Garner LLP mohamadrezakiani@gmail.com Dr Kiani has extensive experience in sustainability in the construction industry. Additionally, his PhD thesis dealt with the environmental impacts of glazed facades which is a part of the review paper here submitted. AbstractDouble Skin Façades (DSFs) are applied in both new and existing buildings, especially in temperate climates. Research in this area is steadily growing; however, there is a lack of conclusive results in available literature about energy performances related to the DSF, thus limiting a better and more informed application of this technology in the Architecture Engineering and Construction (AEC) sector. This paper systematically reviews more than 50 articles which have dealt with the energy related performance of DSFs in temperate climates and provide a meta-analysis of the numerical findings published in the studies examined. Energy related figures are presented separately for embodied and operational energy. Specifically, the operational energy end-uses taken into account are heating, cooling, lighting, and ventilation. Numerical results in the literature are normalised and expressed in form of percentage of maximum energy reduction/increment compared to a ba...

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Section: Introductionmentioning

confidence: 99%

Energy performance of Double-Skin Façades in temperate climates: A systematic review and meta-analysis

Pomponi

Piroozfar

Southall

et al. 2016

Renewable and Sustainable Energy Reviews

119

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“…So far, most of the laboratory measurements focus on the cavity performance, which is considered a main contributing feature to DSF's energy improvement (Saelens and Hens 2001;Zöllner et al 2002). The DSF modeling using CFD or zonal models is often validated using the temperatures of the cavity air, the glazing, or the blinds (Manz 2004;Zeng et al 2012;Lyi et al 2014;Xu and Yang 2008;Pappas and Zhai 2008;Fuliotto et al 2010;Kuznik et al 2011, Blanco et al 2014). Yet, few studies have attempted to test the reliability of these models in predicting room heat gain.…”

Section: List Of Symbolsmentioning

confidence: 97%

“…In practice, it is often necessary to evaluate whether the benefits of a DSF design outweigh its disadvantages; therefore, knowledge of its energy performance is required. Many studies have been done to understand the thermal behavior of DSFs and their energy benefits; some have focused on the CFD modeling of the flow in the cavity (Manz 2004; Gratia and De Herde 2004;Safer et al 2005;Gosselin and Chen 2008;Jiru and Haghighat 2008;Popa et al 2012;Zeng et al 2012;Lyi et al 2014), some have focused on the modeling of the overall energy performance (Manz and Frank 2005;Xu and Yang 2008;Pappas and Zhai 2008;Fuliotto et al 2010;Carlos 2014), and some have discussed DSF's applicability in practice compared with alternatives (Yılmaz and Çetintaş 2005;Xu and Ojima 2007;Hamza 2008;Høseggen et al 2008;Tanaka et al 2009;Chan et al 2009;Choi et al 2012;Joe et al 2013).…”

Section: Introductionmentioning

confidence: 98%

Prediction of solar heat gain of double skin facade windows

Zheng

et al. 2016

Build. Simul.

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A linear model involving the solar heat gain coefficient and U value is often used to calculate the solar heat gain of traditional windows; however, it is not known if such linear model is applicable to double skin facades, which is typically featured by ventilated cavity and often with blinds inside. This paper reports on an experimental investigation into the relation between the two coefficients and the energy gain by a double skin facade without blinds. A small-scale solar calorimeter was constructed to measure the energy gain of a double skin facade window about 1.1 m high. Four tests with solar radiation intensity ranging from 205 to 793 W/m 2 showed that the energy gain can be represented by such linear model. The solar heat gain coefficient can be determined from the data fitting process with more accuracy than the U value, which, being a minor determinant of the heat flow in the presence of the solar radiation, may require more data for reasonable accuracy.The advantage of this linear model lies in its simplicity, which makes it easy to incorporate into present building energy simulation tools. Keywordsdouble skin facade, solar heat gain, experiment, solar radiation, linear model Article History

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“…There are several case studies applying various shading devices to the naturally ventilated buildings [37][38][39][40]. Hien et al [37] conducted CFD for a building with three types of horizontal shading devices installed, and it was found that the shading devices can have an effect on reducing both the inlet and outlet air flow.…”

Section: Introductionmentioning

confidence: 99%