Numerical analysis of the thermal behaviour of glazed ventilated facades in Mediterranean climates. Part II: applications and analysis of results

Faggembauu, D.; Costa, M.; Sòria, M.; Oliva, A.

doi:10.1016/j.solener.2003.07.014

Cited by 60 publications

(20 citation statements)

References 2 publications

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“…It should be noted that although the latter is the only case in which numerical results prove a worse situation cooling-wise, there are agreed and well-argued concerns about overheating issues within the studies reviewed here [6,12,60,80,84,85]. Such a phenomenon also highlights summer indoor comfort issues related to DSFs.…”

Section: Dsf Heating Loads Reduction Potentialmentioning

confidence: 70%

“…Balocco [79] studied the influence of cavity width on the cooling potential of the DSF, finding that a cavity of 35 cm leads to the maximum reduction of 27.5%. Faggembauu et al [80] also evaluated the influence of different parameters, such as position of shading devices and low-e glazing, achieving a maximum reduction of 27% of indoor gains and cooling loads. In examining the energy performance of DSFs with thermal mass in the cavity, Fallahi et al [60] obtained a 26% reduction in the case of a mechanically ventilated façade.…”

Section: Coolingmentioning

confidence: 99%

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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: Dsf Heating Loads Reduction Potentialmentioning

confidence: 70%

Section: Coolingmentioning

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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show abstract

“…In general, in the DGF described in the literature, the ventilation occurs in the vertical so published work related to DGF with lateral ventilation is scarce. In this case the air movement inside the cavity is quite complex, with eddies and recirculation that produce the mixing of the air in the cavity [5,11]. In the case of horizontal flow, these authors predict the formation of rising columns of fluid near the walls of the double facade that are recirculated down to the center of the flow channel, promoting the flow mixing.…”

Section: Temperature (ºC)mentioning

confidence: 99%

“…In such climates, overheating and large energy consumptions of buildings are the main issues to be managed, so the inclusion of highly glazed areas in buildings is traditionally not recommended [3]. But in the last years, DGFs have been suggested as a suitable technology that could reduce the cooling load of buildings in Mediterranean and hot arid climates [4,5]. The proposal caused a controversial debate between researchers and designers which lasts until the present time.…”

Section: Introductionmentioning

confidence: 99%

Double skin glazed façades in sunny Mediterranean climates

Larsen

Rengifo

Filippín

2015

Energy and Buildings

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“…Even though these studies support the energy efficiency potential of DSFs, there is an issue relating to overheating during warm periods which tend to create additional cooling load in buildings through solar heat gains on the façades especially at higher floor levels [5][6][7][8][9] . In some DSF cases shading devices such as mid-pane blinds and internal blinds are being used in providing solar shading but they are believed to contribute to additional heat source linked with complex long wave radiation exchange, increased air temperature and buoyancy effect in the cavities 10 .…”

Section: Introductionmentioning

confidence: 99%

Thermal Simulation and Evaluation of a Double Skin Façade System

Darkwa

Lin

2013

11th International Energy Conversion Engineering Conference

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Theoretical and practical evaluation of a naturally-ventilated double skin façade has been undertaken. The study has shown that the double skin façade (DSF) system is capable of supplying adequate ventilation to various levels with little or no additional heating during winter thus saving the bulk percentage of the heating load on the building. However there was an element of overheating in the DSF which may have contributed to an additional cooling load on the building. Even though the operational strategy of mixing return air with trapped air in the cavity helped to minimise the overheating effect, there was still some considerable level of temperature increase in the DSF. Effective thermal management control strategies and systems are therefore encouraged in the design and operation of DSFs. NomenclatureE energy (J) Greek letters external body force (N) β thermal expansion coefficient h Sensible heat enthalpy (J/kg) variable density (kg/m k eff thermal conductivity ( W/m·K) constant density (kg/m 3 p static pressure (Pa) gravitational body force S h source term stress tensor S m user-defined source of mass.To operating temperature (K)

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Numerical analysis of the thermal behaviour of glazed ventilated facades in Mediterranean climates. Part II: applications and analysis of results

Cited by 60 publications

References 2 publications

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

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

Double skin glazed façades in sunny Mediterranean climates

Thermal Simulation and Evaluation of a Double Skin Façade System

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