globalchange  > 全球变化的国际研究计划
DOI: 10.1007/s11367-018-1570-5
WOS记录号: WOS:000475732300010
论文题名:
Refurbishment of office buildings in New Zealand: identifying priorities for reducing environmental impacts
作者: Ghose, Agneta1,2; Pizzol, Massimo3; McLaren, Sarah J.1; Vignes, Mathieu4; Dowdell, David2
通讯作者: Ghose, Agneta
刊名: INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
ISSN: 0948-3349
EISSN: 1614-7502
出版年: 2019
卷: 24, 期:8, 页码:1480-1495
语种: 英语
英文关键词: Building refurbishment ; Construction ; Deep retrofit ; Energy efficiency ; General additive model ; Life Cycle Assessment ; Kruskal-Wallis ; Photovoltaic ; Policy making ; Regression analysis ; Resource management
WOS关键词: LIFE-CYCLE ASSESSMENT ; ENERGY REFURBISHMENT ; EXISTING BUILDINGS ; ASSESSMENT LCA ; HEAT-PUMPS ; SYSTEMS ; MODELS ; WINDOW ; UNCERTAINTY ; PREDICTION
WOS学科分类: Engineering, Environmental ; Environmental Sciences
WOS研究方向: Engineering ; Environmental Sciences & Ecology
英文摘要:

PurposeIn recent years, the building sector has highlighted the importance of operational energy and efficient resource management in order to reduce the environmental impacts of buildings. However, differences in building-specific properties (building location, size, construction material, etc.) pose a major challenge in development of generic policy on buildings. The aim of this study was to investigate the relationship between energy and resource management policies, and building-specific characteristics on environmental impacts of refurbished office buildings in New Zealand.MethodsLife Cycle Assessment (LCA) was performed for 17 office buildings operating under seven representative climatic conditions found in New Zealand. Each building was assessed under fourpolicy scenarios: (i) business-as-usual, (ii) use of on-site photovoltaic (PV) panels, (iii) electricity supply from a renewable energy grid, and (iv) best practice construction activities adopted at site. The influence of 15 building-specific characteristics in combination with each scenario was evaluated. The study adopted regression analysis, more specifically Kruskal-Wallis and General Additive Modeling (GAM), to support interpretation of the LCA results.Results and discussionAll the chosen policies can significantly contribute to climate change mitigation as compared to business-as-usual. However, the Kruskal-Wallis results highlight policies on increasing renewable energy sources supplying national grid electricity can substantially reduce the impacts across most environmental impact categories. Better construction practices should be prioritized over PV installation as use of on-site PV significantly increases the environmental impacts related to use of resources. The GAM results show on-site PV could be installed in low-rise buildings in regions with long sunshine hours. The results also show the strong influence of facade elements and technical equipment in determining the environmental performance of small and large buildings, respectively. In large multi-storied buildings, efficient HVAC and smaller window area are beneficial features, while in small buildings the choice of facade materials with low embodied impacts should be prioritized.ConclusionsIn general, the study highlighted the importance of policies on increasing renewable energy supply from national grid electricity to substantially reduce most of the impacts related to buildings. In addition, the study also highlighted the importance of better construction practices and building-specific characteristics to reduce the impacts related to resource use. These findings can support policy makers to prioritize strategies to improve the environmental performance of existing buildings in New Zealand and in regions with similar building construction and climate.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/144780
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Massey Univ, Inst Agr & Environm, Private Bag 11222, Palmerston North 4442, New Zealand
2.Bldg Res Assoc New Zealand, Moonshine Rd, Porirua City 5381, New Zealand
3.Aalborg Univ, Dept Planning, Rendsburggade 14, DK-9000 Aalborg, Denmark
4.Massey Univ, Inst Fundamental Sci, Private Bag 11222, Palmerston North 4442, New Zealand

Recommended Citation:
Ghose, Agneta,Pizzol, Massimo,McLaren, Sarah J.,et al. Refurbishment of office buildings in New Zealand: identifying priorities for reducing environmental impacts[J]. INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT,2019-01-01,24(8):1480-1495
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