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Energies 2011, 4(11), 2061-2076; doi:10.3390/en4112061

Energy-Saving Potential of Building Envelope Designs in Residential Houses in Taiwan

1,2,*  and 1
Received: 3 September 2011 / Revised: 4 November 2011 / Accepted: 5 November 2011 / Published: 23 November 2011
(This article belongs to the Special Issue Energy Efficient Building Design)
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The key factors in the energy-saving design of a building’s exterior in Taiwan are the thermal performance of the roof and window glazing. This study used the eQUEST software to investigate how different types of roof construction, window glasses and sunshield types affect the energy consumption in residential buildings under common scenarios. The simulation results showed that the use of an appropriate window glass significantly reduced the annual energy consumption, followed by the shading device, whereas the roof construction produced less of an energy-efficiency benefit. By using a low-E glass and a 1.5 × 1.5 m box shading (e.g., balcony), this could save approximately 15.1 and 13.6% of the annual electricity consumption of air conditioners, respectively. Therefore, having control over the dominant factors in the building envelope is indeed an important step in the path to achieving energy savings and carbon reduction in residential houses.
Keywords: energy; building; thermal performance energy; building; thermal performance
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lai, C.-M.; Wang, Y.-H. Energy-Saving Potential of Building Envelope Designs in Residential Houses in Taiwan. Energies 2011, 4, 2061-2076.

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