A study of relationship between the high rise residential building orientations and energy utilization index at the new develop areas in Hong Kong

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A study of relationship between the high rise residential building orientations and energy utilization index at the new develop areas in Hong Kong


Author: Wong, Kwok-kee
Title: A study of relationship between the high rise residential building orientations and energy utilization index at the new develop areas in Hong Kong
Degree: M.Sc.
Year: 2015
Subject: Building information modeling.
Buildings -- Energy conservation.
Architecture and climate.
Sustainable buildings -- Design and construction.
Hong Kong Polytechnic University -- Dissertations
Department: Faculty of Construction and Environment
Pages: iii, 56 pages : color illustrations
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2831580
URI: http://theses.lib.polyu.edu.hk/handle/200/8343
Abstract: Urban heat island (UHI) has become important studies in the recent years. The main reason caused UHI is the rapid grow of population in the urbanized areas. The substantial housing demands for accommodating the people resident in the urbanized areas. More residential accommodations would be built to meet people's need. Then, energy required for construction works and anthropogenic emission would be increased in due course. As a result, the urban temperature would higher than rural temperature in calm and sky days. Then, UHI effect occurs. There are many research papers address the adverse effects of UHI. It is to influence climates, deteriorate air qualities, increasing energy demand, increasing in mortality rate and enhance the transmission of tropical diseases (Tong, H., et al., 2005; Sarrat, C.,et al., 2006; Fung, W.Y., et al., 2006). When increasing in population in urban areas, the housing demand is also increasing. Then, energy consumption will be increased in due course. Hence, in order to reduce UHI effect generating in anthropogenic emission, the building design is played an important role to reduce the energy demand thorough its life cycle. There was over 40% energy consumed especially in residential building for space conditioning in the tropical climate area. The concept of passive building design approach is referred generally to the use of the building design and choice of materials to provide space conditioning in an energy efficient manner to be able to avoid of minimize the use of conventional space conditioning systems that employ motorized mechanical components to move fluids and air (Hunag, 2004). It expressed that passive building design technique as utilization of natural resources to reduce the energy consumption of building and improve their thermal comfort environment (Zhou, J., et al., 2006). Building Information Modeling (BIM) is a digital platform for analysis the performance of alternative building design and allows multi-disciplinary information to be superimposed within one model and covers geometry, spatial relationship, light analysis, geographic information, quantities and building components. It also provides building simulation and investigating the performance of the building virtually in the pre-construction stage that will aid the decision makers to select specifications with the least detrimental impact to the environment. The study is ascertained the passive building design strategy by using BIM building models and to perform the alternative building design of the different building orientations in term of energy consumption. The building models would be rotate by each 30 degree in clockwise displacement from North and the data collected in form J/m²/annum. Based on the analysis 4 different sites of one building model, it is found that the energy consumption intensity of same displacement from the 4 locations are different but the pattern of the data distributed is likely the same. Moreover, the study is successfully identified the optimum orientations of the virtually building models to minimize energy consumed.

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