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      USE OF DISSIMILAR WALLING SYSTEMS ON RESIDENTIAL BUILDING ENVELOPES FOR IMPROVING THEIR THERMAL PERFORMANCE

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          Abstract

          This paper summarises the results of a combined numerical, statistical and experimental study concerned with the use of dissimilar walling systems on the external parts of a given building envelope. The rational behind this “hybrid wall” concept, as opposed to conventional approaches where identical walls are used in a building envelope, is to achieve a more effective distribution of thermal mass across the envelope and, hence, improve the overall thermal performance of the building. The effectiveness of the “hybrid wall” concept was investigated using a series of hypothetical building modules of common Australian residential constructions, namely Light Weight (LW), Brick Veneer (BV), Reverse Brick Veneer (RBV) and Cavity Brick (CB). These designs were examined numerically using a commercial energy rating tool known as “AccuRate”, statistically using JMP software and experimentally using a novel benchscale setup developed as part of this study. The performance of each design was evaluated by its energy consumption. The numerical predictions and experimental data highlighted that the east and west walls have the most impact on the energy consumption under Australian climatic conditions. It was found that considerable reductions in the energy consumption could be achieved in cases where the hybrid wall concept was implemented through the use of high thermal mass insulated walls on the east and west sides of the building envelope.

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          Most cited references 4

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          Calculation of the thermal behaviour of multi-zone buildings

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            Effect of Thermal Mass on the Thermal Performance of Various Australian Residential Constructions Systems

             K.E. Gregory (2007)
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              Technical Manual, Design for Lifestyle and the Future

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Spring 2009
                : 4
                : 2
                : 107-125
                Author notes

                1Priority Research Centre for Energy, Chemical Engineering, School of Engineering, Faculty of Engineering & Built Environment, The University of Newcastle, Callaghan, NSW 2308, Australia.

                2Corresponding Author. Phone: +61 (2) 49854-411 Email: behdad.moghtaderi@ 123456newcastle.edu.au .

                Article
                jgb.4.2.107
                10.3992/jgb.4.2.107
                ©2009 by College Publishing. All rights reserved.

                Volumes 1-7 of JOGB are open access and do not require permission for use, though proper citation should be given. To view the licenses, visit https://creativecommons.org/licenses/by-nc/4.0/

                Page count
                Pages: 19
                Product
                Categories
                RESEARCH ARTICLES

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