Factors in a Sustainability Assessment of New Types of Closed Cavity Façades
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Factors in a Sustainability Assessment of New Types of Closed Cavity Façades

Authors: Zoran Veršić, Josip Galić, Marin Binički, Lucija Stepinac

Abstract:

With the current increase in CO2 emissions and global warming, the sustainability of both existing and new solutions must be assessed on a wide scale. As the implementation of closed cavity façades (CCF) is on the rise, various factors must be included in the analysis of new types of CCF. This paper aims to cover the relevant factors included in the sustainability assessment of new types of CCF. Several mathematical models are being used to describe the physical behavior of CCF. Depending on the type of CCF, they cover the main factors which affect the durability of the façade: thermal behavior of various elements in the façade, stress and deflection of the glass panels, pressure and the moisture control in the cavity. CCF itself represents a complex system in which all mentioned factors must be considered mutually. Still, the façade is only an envelope of a more complex system, the building. Choice of the façade dictates the heat loss and the heat gain, thermal comfort of inner space, natural lighting, and ventilation. Annual energy consumption for heating, cooling, lighting, and maintenance costs will present the operational advantages or disadvantages of the chosen façade system in economic and environmental aspects. Still, the only operational viewpoint is not all-inclusive. As the building codes constantly demand higher energy efficiency as well as transfer to renewable energy sources, the ratio of embodied and lifetime operational energy footprint of buildings is changing. With the drop in operational energy CO2 emissions, embodied energy emissions present a larger and larger share in the lifecycle emissions of the building. Taking all into account, the sustainability assessment of a façade, as well as other major building elements, should include all mentioned factors during the lifecycle of an element. The challenge of such an approach is a timescale. Depending on the climatic conditions on the building site, the expected lifetime of a glazed façade can exceed 25 years. In such a timespan, some of the factors can be estimated more precisely than the others. However, the ones depending on the socio-economic conditions are more likely to be harder to predict than the natural ones like the climatic load. This work recognizes and summarizes the relevant factors needed for the assessment of a new type of CCF, considering the entire lifetime of a façade element in an environmental aspect.

Keywords: Assessment, closed cavity façade, life cycle, sustainability.

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References:


[1] B. V. D. Nathan, K. V. D. Brande, H. D. Bleecker and G. Lori, "Validation of a coupled pressure-equalization-thermal-mechanical model to study double-skin façades," in 12th Nordic Symposium on Building Physics (NSB), Tallin, EDP Sciences, 2020.
[2] A. Feehan, H. Nagpal, A. Marvuglia and J. Gallagher, "Adopting an integrated building energy simulation and life cycle assessment framework for the optimisation of façades and fenestration in building envelopes," Journal of Building Engineering, vol. 43, p. 103138, 2021.
[3] S. Janjua, W. Biswas and P. K. Sarker, "Sustainability implications of service life on residential buildings – An application of life cycle sustainability assessment framework," Environmental and Sustainability Indicators, vol. 10, 1 6 2021.
[4] F. Goia and A. Jankovic, "Impact of double skin façade constructional features on heat transfer and fluid dynamic behaviour," Building and Environment, vol. 196, p. 107796, 1 6 2021.
[5] V. Maiorov, "Heat transfer through a double-glazed window by radiation," IOP Conference Series: Materials Science and Engineering, vol. 939, no. 1, p. 012049, 9 2020.
[6] B. J. Peter, S. E. Kalnæs and T. Gao, "Low-Emissivity Materials for Building Applications: A State-of-the-Art Review and Future Research Perspectives," Energy and Buildings, vol. 96, pp. 329-356, 2015.
[7] D. A. Iyi, R. Hasan, R. Penlington and C. Underwood, "Double skin façade: Modelling technique and influence of venetian blinds on the airflow and heat transfer," Applied Thermal Engineering, vol. 7, no. 1, pp. 219-229, 5 10 2014.
[8] T. Okada, R. Ishige and S. Ando, "Analysis of Thermal Radiation Properties of Polyimide and Polymeric Materials Based on ATR-IR spectroscopy," Journal of Photopolymer Science and Technology, vol. 29, no. 2, pp. 251-254, 2016.
[9] A.-J. Khalifa, "Natural convective heat transfer coefficient - a review: I. Isolated vertical and horizontal surfaces," Energy conversion and management, vol. 42, no. 4, pp. 491-504, 2001.
[10] Z. Aketouane, A. Bah, M. Malha and O. Ansari, "Effect of Emissivity on the Thermal Behavior of a," in 2016 International Renewable and Sustainable Energy Conference (IRSEC), Marrakech, 2016.
[11] Z. Respondek, "Influence of insulated glass units thickness and weight reduction on their functional properties," Open Engineering, vol. 8, no. 1, pp. 455-462, 24 2 2018.
[12] World Energy Council, "World Energy Resources: Solar," World Energy Council, London, 2013.
[13] A. Plotnikov, "Partial Rarefaction as Way to Reduce Distortion Curve of double-glazed unit," in IOP Conference Series: Earth and Environmental Science, Khabarovsk, 2017.
[14] L. Galuppi and G. Royer-Carfagni, "The effective thickness of laminated glass plates," Journal of Mechanics of Materials and Structures, vol. 7, no. 4, pp. 375-400, 2012.
[15] B. Čas, M. Saje and I. Planinc, "Buckling of layered wood columns," Advances in Engineering Software, vol. 38, no. 8-9, pp. 586-597, 2007.
[16] P. Foraboschi, "Analytical model for laminated-glass plate," Composites Part B: Engineering, vol. 43, no. 5, pp. 2094-2106, 2012.
[17] S. J. Bennison, A. Jagota and A. C. Smith, "Fracture of glass/poly (vinyl butyral)(Butacite®) laminates in biaxial flexure," Journal of the American Ceramic Society, vol. 82, no. 7, pp. 1761-1770, 1999.
[18] European Parliament and Council of the European Union, Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings recast), Paris: Official Journal of the European Union, 2013.
[19] D. D'Agostino and L. Mazzarella, "What is a Nearly zero energy building? Overview, implementation and comparison of definitions," Journal of Building Engineering, vol. 21, pp. 200-212, 2019.
[20] H. Moghaddasi, C. Culp, J. Vanegas and M. Ehsani, "Net zero energy buildings: variations, clarifications, and requirements in response to the Paris Agreement," Energies, vol. 14, no. 13, p. 3760, 2021.
[21] J. Kurnitski, Cost optimal and nearly zero-energy buildings (nZEB): definitions, calculation principles and case studies, Berlin: Springer Science & Business Media, 2013, p. 175.
[22] European Environment Agency, "Greenhouse gas emission intensity of electricity generation by country," EEA Web Team, (Online). Available: https://www.eea.europa.eu/data-and-maps/daviz/co2-emission-intensity-9#tab-googlechartid_googlechartid_googlechartid_googlechartid_chart_11111. (Accessed 28 11 2021).
[23] CEN Standard and others, Energy Performance of Buildings—Overall Energy Use, CO Emissions and Definition of Energy Ratings, vol. 15203, 2008, p. 15315.
[24] S.-T. No and J.-S. Seo, "Analysis of Window Components Affecting U-Value Using Thermal Transmittance Test Results and Multiple Linear Regression Analysis," Advances in Civil Engineering, 2018.
[25] F. Pacheco-Torgal, J. Faria and S. Jalali, "Embodied energy versus operational energy. Showing the shortcomings of the energy performance building directive (EPBD)," Materials Science Forum, vol. 730, pp. 587-591, 2013.
[26] EN 15804:2012+A1:2013 Sustainability of construction works - Environmental products declaration - Rules for the product categories, Berlin: Beuth Verlag GmbH, 2013.
[27] M. Gautam, B. Pandey and M. Agrawal, "Carbon footprint of aluminum production: emissions and mitigation," in Environmental Carbon Footprints, Amsterdam, Elsevier B.V., 2018, pp. 197-228.