Energy and environment performance assessment of Hong Kong zero carbon building

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Energy and environment performance assessment of Hong Kong zero carbon building


Author: Xu, Sumeng
Title: Energy and environment performance assessment of Hong Kong zero carbon building
Degree: M.Eng.
Year: 2014
Subject: Buildings -- Energy conservation -- China -- Hong Kong
Buildings -- Environmental aspects -- China -- Hong Kong
Sustainable buildings.
Carbon dioxide mitigation.
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Building Services Engineering
Pages: x, 108 leaves : color illustrations ; 30 cm
Language: English
Abstract: More buildings nowadays are increasingly expected to meet higher and potentially more complex levels of performance. They should be sustainable, use zero-net energy, be healthy and comfortable, grid-friendly, etc. The topic of zero energy buildings (ZEB) or zero carbon buildings (ZCB) has received increasing attention in recent years and even attracted so much attention in some countries that the strategy for moving the trend has been written as regulations. Pioneering efforts has been taken in some progressive cities overseas to develop ZEB or ZCB for a few years. In 2011, Construction Industry Council took a leading action and initiated to build first Zero Carbon Building (ZCB) in Hong Kong. The Hong Kong ZCB was opened to the public in January 2013, the actual performance of Hong Kong ZCB in its first operation year is an appealing issue, which is also the aim of this research. To make a relatively precise assessment of actual performance of ZCB, a logical layer by layer analysis method is applied in this research based on the quantity and quality of the three kind of available information/ data, i.e. energy bill, data recorded by Building Management System (BMS) and data extracted from Central Control and Monitoring Systems (CCMS). With the assessment achieved in every step, it is found that there was a mismatch between the actual performance in the first operation year and targeted performance set at the design stage. The biggest deviation is in the energy consumption side, while the performance in energy generation side is a little satisfactory as well as the indoor environment performance of ZCB. The specific layer by layer assessment process reveals that it is not only the rough estimation at the design stage but also the actual operation that cause the gap between the theory and the practice. Some deeper insight of ZCB may be gained from this exploration research and further study is as well needed.

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