ASSESSMENT OF THE ENERGY EFFICIENCY OF AN EXTERNALLY-INSULATED REHABILITATED BUILDING UNDER SEMI-ARID CLIMATE

Authors

  • H. Belili Laboratoire architecture bioclimatique et environnement, université constantine 3, Constantine
  • S. Abdou Laboratoire architecture bioclimatique et environnement, université constantine 3, Constantine

DOI:

https://doi.org/10.4314/jfas.v12i1S.21

Keywords:

external thermal insulation; natural nocturnal ventilation; super insulator (aerogel); modelling; energy consumption.

Abstract

The current evolution of the world warrants the rethinking of the modes of construction. Improvements to insulation materials will have a large impact in the building and construction sector. The aim of this work is to conduct a modelling study using the TRNSYS 17 software to evaluate the impact of the use of different types of thermal insulators and their location on the energy consumption of buildings. The results of the simulation show that the use of a super-insulating 2-cm-aerogel, an 8-cm ecological sheep wool sheet, and an 8-cm polyurethane sheet combined with a 5-cm air layer on the outer façade of the wall, allow respectively energy savings of 18.46%, 2.32%, and 1.96% compared to the real-life case study. In order to optimize the thermal and energy performance of the building, this study presents several innovative alternative materials that are suitable for implementation as a skin for a building.

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References

[1] Medjelekh. D, "Modélisation de l’impact de l’isolation thermique sur la température intérieure," Revue des Energies Renouvelables, vol. 13, pp. 265-273, 2010.
[2] Ozel. M, "Determination of optimum insulation thickness based on cooling transmission load for building walls in a hot climate," Energy conversion and management, vol. 66, pp. 106-114, 2013.
[3] Kadri. N and Mokhtari. A, "Contribution à l’étude de réhabilitation thermique de l’enveloppe du bâtiment," Revue des Energies Renouvelables, vol. 14, pp. 301-311, 2011.
[4] Fezzioui. N, Droui. B, Benyamine. M, and Larbi. S, "Influence des caractéristiques dynamiques de l’enveloppe d’un bâtiment sur le confort thermique au sud Algérien," Revue des énergies renouvelables, vol. 11, pp. 25-34, 2008.
[5] Le Moniteur Architecture ‘A.M.C’, N°140, pp. 89-99, Février 2004.
[6] Jedidi. M and Benjeddou. O, La thermique du bâtiment: Du confort thermique au choix des équipements de chauffage et de clim: Dunod, 2016.
[7] Quinten. J and Feldheim. V, "Dynamic modelling of multidimensional thermal bridges in building envelopes: Review of existing methods, application and new mixed method," Energy and Buildings, vol. 110, pp. 284-293, 2016.
[8] Bekkouche. S, Benouaz. T, Cherier. M, Hamdani. M, Yaiche. M, and Benamrane. N, "Thermal resistances of air in cavity walls and their effect upon the thermal insulation performance," Journal homepage : www. IJEE. IEEFoundation. org, vol. 4, pp. 459-466, 2013.
[9] Daouas. N, Hassen. Z, and Aissia.H. B, "Analytical periodic solution for the study of thermal performance and optimum insulation thickness of building walls in Tunisia," Applied thermal engineering, vol. 30, pp. 319-326, 2010.

[10] Stazi.F, Vegliò.A, Di Perna.C, and Munafò.P, "Experimental comparison between 3 different traditional wall constructions and dynamic simulations to identify optimal thermal insulation strategies," Energy and buildings, vol. 60, pp. 429-441, 2013.
[11] Givoni.B, Passive low energy cooling of buildings: John Wiley & Sons, 1994.
[12] Benouali .H, Brara. A, Mahdad. M, and Mokhtari. F, "Caractérisation thermophysique et suivi thermique de deux bâtisses réalisées en blocs de terre comprimée," 2011.
[13] Cuce. E, Cuce. P. M, Wood. C. J, and Riffat. S. B, "Toward aerogel based thermal superinsulation in buildings: a comprehensive review," Renewable and Sustainable Energy Reviews, vol. 34, pp. 273-299, 2014.
[14] Jelle. B. P, "Traditional, state-of-the-art and future thermal building insulation materials and solutions–Properties, requirements and possibilities," Energy and Buildings, vol. 43, pp. 2549-2563, 2011.
[15] Rashwan. A, Farag. O, and Moustafa. W. S, "Energy performance analysis of integrating building envelopes with nanomaterials," International Journal of Sustainable Built Environment, vol. 2, pp. 209-223, 2013.
[16] Imbabi, M.S.-E., A passive–active dynamic insulation system for all climates. International journal of sustainable built environment, 2012. 1(2): p. 247-258.
[17] Cuce, E., et al., Toward aerogel based thermal superinsulation in buildings: a comprehensive review. Renewable and Sustainable Energy Reviews, 2014. 34: p. 273-299.

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Published

2019-12-28

How to Cite

BELILI, H.; ABDOU, S. ASSESSMENT OF THE ENERGY EFFICIENCY OF AN EXTERNALLY-INSULATED REHABILITATED BUILDING UNDER SEMI-ARID CLIMATE. Journal of Fundamental and Applied Sciences, [S. l.], v. 12, n. 1S, p. 288–303, 2019. DOI: 10.4314/jfas.v12i1S.21. Disponível em: https://www.jfas.info/index.php/JFAS/article/view/706. Acesso em: 25 feb. 2024.