Impact of future urban form on the potential to reduce greenhouse gas emissions from residential, commercial and public buildings in Utsunomiya, Japan
Impact of future urban form on the potential to reduce greenhouse gas emissions from residential, commercial and public buildings in Utsunomiya, Japan
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DOI：
10.1016/j.enpol.2009.08.022
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发表时间：
2010-09-01
期刊：
影响因子：
9
通讯作者：
Hanaki, Keisuke
中科院分区：
文献类型：
--
作者：
Ishii, Satoshi;Tabushi, Shoichi;Hanaki, Keisuke
节能技术在提高城市环境可持续性方面的适用性，可能会受到城市形式、建筑用途及其密度模式的强烈影响。技术发展清楚地表明，特定的城市形态更有利于安装某些缓解技术。本研究针对日本宇都宫市的三种潜在城市形态(高密度集中、中等密度平均和低密度分散)，分析了光伏电池(PV)和热电联产(CHP)等缓解技术的实施能力及其对节能和随后的温室气体(GHG)减排潜力的影响。鉴于目前的建筑使用模式，2030年和2050年的情景显示，中密度平均形式(光伏和热电联产技术)的表现优于其他形式，导致2030年和2050年的节能和温室气体减排潜力分别为27.6%和67.6%。有趣的是，2050年温室气体的减少主要归因于光伏发电，而热电联产技术在2030年的影响更大。尽管分析存在局限性，但这项研究提供了一个有用的见解，强调了城市形态与两种节能技术的温室气体减排潜力之间的关系。(C)2009爱思唯尔有限公司。保留所有权利。
Energy-saving technologies' applicability to making cities more environmentally sustainable can be strongly influenced by the city's form, building uses and their density pattern. Technological developments have clearly shown specific urban forms to be more conducive to installing certain mitigation technologies. In this study, the capacity for implementation and impacts on energy savings and subsequent greenhouse gas (GHG) reduction potential of mitigation technologies such as photovoltaic cells (PV) and combined heat and power (CHP) technologies were analysed with respect to three potential urban forms (high density centralised, medium density averaged and low density decentralized) for Utsunomiya City, Japan. Given current building use patterns, scenarios for 2030 and 2050, showed the medium density averaged form, which benefits from both PV and CHP technologies, to outperform the other forms, resulting in an energy savings and GHG reduction potential of 27.6% in 2030 and 67.6% in 2050. Interestingly, GHG reduction in 2050 was primarily attributable to PV, while CHP technology had the greater influence in 2030. Despite the limitation of the analysis, the study provides a useful insight, highlighting the relationship between urban forms and GHG reduction potential by two energy-saving technologies. (C) 2009 Elsevier Ltd. All rights reserved.