Reduction potential of operational carbon dioxide emission of Nakanoshima business/cultural area as a model for low-carbon districts in warm climates
Reduction potential of operational carbon dioxide emission of Nakanoshima business/cultural area as a model for low-carbon districts in warm climates
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DOI：
10.1016/j.buildenv.2012.08.019
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发表时间：
2013
影响因子：
7.4
通讯作者：
Y. Yamaguchi;Y. Shimoda;Takehito Kitano
中科院分区：
文献类型：
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作者：
Y. Yamaguchi;Y. Shimoda;Takehito Kitano
这项研究考察了在温带和热带地区的商业区实现大规模减少业务性二氧化碳(CO2)排放的情景。在温暖的气候中，取暖的能源使用量在建筑物的能源使用量中并不占主导地位，因此，必须充分利用所有可用的减排技术，以实现大幅的整体减排，就像本研究中所研究的情景一样。重点放在中野岛地区的商业建筑上，这是一个长3公里、宽50公顷的沙洲，是日本大阪市的中心商业和文化区。2008年，中野岛总建筑面积约120万平方米的商业建筑排放了8.8万吨二氧化碳。本文使用的方法结合了：1)能量流分析，2)以实际能耗验证的社区规模建筑性能模拟，并以详细的实地调查和参考调查为支持，3)假设技术部署和基于长期视角的社会变化的假设分析。它使人们能够全面了解什么目的消耗了多少能源，以及通过实施哪些技术和措施可以减少多少能源。结果表明，目前可操作的二氧化碳排放量的大约65%可以在未来几十年内减少。
This study examines a scenario for realizing large-scale reductions of operational carbon dioxide (CO2) emission in commercial districts in temperate and tropical zones. In warm climates, energy usage for heating is not dominant in a building's energy usage, and hence, every available emission reduction technology must be fully utilized to achieve a large overall reduction in emissions, as in the scenario examined in this study. The focus is on commercial buildings in Nakanoshima area, a sandbank 3 km long and 50 ha wide, a central business and cultural area in the city of Osaka, Japan. The commercial buildings in Nakanoshima with approximately 1.2 million square meters of total floor area emitted 88 thousand tons of CO2in 2008. The method used in this paper combines: 1) energy flow analysis, 2) community-scale building performance simulation validated with actual energy consumption and supported by detailed field survey and reference survey, and 3) what-if analysis assuming technological deployment and social change based on a long-term perspective. It enables a comprehensive understanding of how much energy is consumed for what purpose as well as how much energy can be reduced by implementing which technologies and measures. The result showed that approximately 65% emissions of the present operational CO2emission could be reduced in the coming decades.