Optimising window design on residential building facades by considering heat transfer and natural lighting in nontropical regions of Australia
Chen, Zixuan, Hammad, Ahmed W. A., Kamardeen, Imriyas and Haddad, Assed 2020, Optimising window design on residential building facades by considering heat transfer and natural lighting in nontropical regions of Australia, Buildings, vol. 10, no. 11, doi: 10.3390/buildings10110206.
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Optimising window design on residential building facades by considering heat transfer and natural lighting in nontropical regions of Australia
Windows account for a significant proportion of the total energy lost in buildings. The interaction of window type, Window-to-Wall Ratio (WWR) scheduled and window placement height influence natural lighting and heat transfer through windows. This is a pressing issue for nontropical regions considering their high emissions and distinct climatic characteristics. A limitation exists in the adoption of common simulation-based optimisation approaches in the literature, which are hardly accessible to practitioners. This article develops a numerical-based window design optimisation model using a common Building Information Modelling (BIM) platform adopted throughout the industry, focusing on nontropical regions of Australia. Three objective functions are proposed; the first objective is to maximise the available daylight, and the other two emphasize undesirable heat transfer through windows in summer and winter. The developed model is tested on a case study located in Sydney, Australia, and a set of Pareto-optimum solutions is obtained. Through the use of the proposed model, energy savings of up to 8.57% are achieved.
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