Impact of Window-Wall Ratio on Air Conditioning Energy Consumption under Different Residential Using Modes in Guangzhou

Li, Hai Shan; Gao, Yan; Zhao, Guo Jun; Jing, Ya Zhou

doi:10.4028/www.scientific.net/amm.316-317.1123

Cited by 2 publications

(2 citation statements)

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“…Inanici and Demirbilek [7] analyzed the south window size and the building aspect ratio to minimize heating and cooling loads. Li et al [8] simulated the annual air conditioning energy consumption of a typical residential building in Guangzhou using the energy consumption simulation software DeST-h, to study the impact of window-wall ratio on the energy consumption in natural and mechanical operation modes.…”

Section: Introductionmentioning

confidence: 99%

Impact Analysis of Window-Wall Ratio on Heating and Cooling Energy Consumption of Residential Buildings in Hot Summer and Cold Winter Zone in China

Yang

Liu

Shu

et al. 2015

Journal of Engineering

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In order to assess the optimal window-wall ratio and the proper glazing type in different air conditioning system operation modes of residential buildings for each orientation in three typical cities in hot summer and cold winter zone: Chongqing, Shanghai, and Wuhan simulation models were built and analyzed using Designer’s Simulation Toolkit (DeST). The study analyzed the variation of annual heating energy demand, annual cooling energy demand, and the annual total energy consumption in different conditions, including different orientations, patterns of utilization of air conditioning system, window-wall ratio, and types of windows. The results show that the total energy consumption increased when the window-wall ratio is also increased. It appears more obvious when the window orientation is east or west. Furthermore, in terms of energy efficiency, low-emissivity (Low-E) glass performs better than hollow glass. From this study, it can be concluded that the influence and sensitivity of window-wall ratio on the total energy consumption are related to the operation mode of air conditioning system, the orientation of outside window, and the glazing types of window. The influence of the factors can be regarded as reference mode for the window-wall ratio when designing residential buildings.

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Section: Introductionmentioning

confidence: 99%

Impact Analysis of Window-Wall Ratio on Heating and Cooling Energy Consumption of Residential Buildings in Hot Summer and Cold Winter Zone in China

Yang

Liu

Shu

et al. 2015

Journal of Engineering

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“…One major factor in considering the energy performance of buildings is the issue of fenestration and glazing. The size, orientation and layers of glazing have a direct correlation with maintaining indoor thermal comfort and are directly proportional to the amount of energy needed to maintain these levels (see, for example, Li, et al 2013, Hamza, et al 2001. Furthermore, the effective use of control over window operation and shading systems, both in relation to natural ventilation and daylight, is a major contributor to energy savings (Tzempelikos, Athienitis 2007).…”

Section: Introductionmentioning

confidence: 98%

Energy-efficient retrofitting and energy consumption in a historic city centre – an example from Lhasa

Huang

Zhengdong²,

Hamza³

2014

disP - The Planning Review

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The conservation of historic buildings and urban environments can have the potential to improve the quality of life, stimulate economic development and reduce carbon emissions from energy consumption. However, given increasing expectations of indoor thermal comfort and an increasing dependency on modern living technologies, energy consumption in the urban historic environment is expected to rise. This paper examines the retrofitting of windows to historic buildings and issues of energy consumption and carbon emission in Lhasa's historic city centre, focusing on the relationship between energy use and window retrofitting. First, the thermal performance of a traditional Tibetan building in Lhasa is simulated and examined. Second, four window types for retrofitting are evaluated through computer modelling and their impacts on energy consumption are compared. Finally, the energy demand and carbon emission of the whole historic city centre with various window types are estimated and compared. In terms of energy efficiency and historic preservation, current single-layered window retrofitting practices perform badly, while windows with wooden frames and secondary glazing may achieve better performance. The approach offers the opportunity to halve the energy consumption and carbon emissions in the Lhasa historic city centre.

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Impact of Window-Wall Ratio on Air Conditioning Energy Consumption under Different Residential Using Modes in Guangzhou

Cited by 2 publications

References 1 publication

Impact Analysis of Window-Wall Ratio on Heating and Cooling Energy Consumption of Residential Buildings in Hot Summer and Cold Winter Zone in China

Impact Analysis of Window-Wall Ratio on Heating and Cooling Energy Consumption of Residential Buildings in Hot Summer and Cold Winter Zone in China

Energy-efficient retrofitting and energy consumption in a historic city centre – an example from Lhasa

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