什么建筑在极端炎热天气中还能保持凉爽?(下)

2022-10-24

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中国夏季炎热的城市


在地球的另一边,重庆和浙江大学的同事们兢兢业业地遵循肖特的研究成果。两所大学本身也位于中国的夏热冬冷气候区中。


夏热冬冷气候区共有5.5亿人口,建筑楼面积90亿平方米。正如其名,这些区域夏天湿热、冬天寒冷。“空调机组销售的数量可谓天文数字,”肖特说道,“随着生活水平的提高,人们对室内的生活环境越来越不满意。”


肖特将他为英国温带气候所开发出来的原则应用于中国南方


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中国重庆的住宅区


当地的研究生和教授对重庆杭州的市中心进行了调查,识别了市中心最常见的建筑类型。并花了两个夏天的时间,收集了大量建筑内、外部数据。他们用此信息为城市建模,并测试翻新改造后的影响力。除了被动式装置,他们也加入了风压通风设计,进一步降低夏季气温。


此项目以“响应气候的城市低碳供暖和制冷” 为名,估算夏热冬冷气候区的住宅楼面全年总能源消耗为900-1350亿度。他们的提案预计未来每年能减少3201.1-4158亿度的能源消耗(作为参照,2020年英国工业总能源消耗估计为2320亿度,所有产业合计13950亿度)。


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LoHCool的发现也通过研讨会与建筑承包商和房地产开发商共享。记录LoHCool工作的电影——“中国火炉城市的低碳未来”,由Cinetecture的Monika Koeck写作、执导,后来也获得多个奖项。


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“中国火炉城市的低碳未来”


研究项目对于在夏热冬冷气候区开发低能耗的住宅意义重大,我们可在其中扮演积极的角色。我们公司复核了研究对现有楼盘的益处,发现确实让我们在规划新建案时能有更多选项,了解能借此从夏热冬冷气候区现有的楼盘收复更多价值。

杭州三湘印象股份有限公司


C·艾伦·肖特教授的研究和我们之间的互动对于区域中低能耗建筑的设计产生了重大的影响。在我们规划改造翻新或新建案时,他的研究拓宽了我们能考虑的选项。

浙江华智建筑技术推广中心


菲沙卫生局的气候风险和韧性主管和她能源和环境可持续发展团队的同事后续将肖特的原则和方法应用在英属哥伦比亚,并于国家级的合作伙伴共同开发项目,将结果和洞察与建筑实践社群共享。

菲沙卫生局能源和环境可持续发展主管


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China’s hot summer cities


Across the globe, Short’s work was being keenly followed by his colleagues at the Universities of Chongqing and Zhejiang. The Universities themselves were situated in what’s known as the Hot Summer-Cold Winter (HSCW) zone in China.


The HSCW region is home to 550 million people and contains 9 billion m2 of building stock. As the name suggests, the summers are hot and humid and the winters cold. “Astronomical numbers of air-conditioning units get sold,” says Short “as the standard of living increases, people are less satisfied with their internal environments.”


Short took the principles that he’d been working through in the temperate climate of the UK and started to apply these to the climate of southern China.


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Residential district, Chongqing, China


The centres of Chongqing and Hangzhou were surveyed by scores of graduate students and their professors who identified recurrent building types. Internal and external data were collected over two summers. The information was then used to model the cities and test the impact of retrofitted adaptations. In addition to passive schemes, wind-driven ventilation was also added to further reduce the summer temperatures.


The project, called Low carbon climate-responsive Heating and Cooling of Cities (LoHCool), estimated that the total annual energy consumption for residential floorspace in the HSCW zone was 90-135 billion kWh. Their proposals would mitigate a potential future 320.11- 415.8 billion kWh of energy consumption per annum – for context the approximate UK total in 2020 for the industrial sector was estimated as 232 billion kWh, with all sectors totalling 1,395 billion kWh.


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The findings of LoHCool were presented to leading building contractors and real estate developers through workshops. A film detailing the work, A Low Carbon Future for China’s Furnace Cities by Monika Koeck of Cinetecture, went on to win a number of awards.


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'A Low Carbon Future for China’s Furnace Cities'


This research project has important implications to developing lower energy residential buildings in this area within which we are able to play an active part. Our company has reviewed its benefit to the existing building stock and the research has greatly broadened the range of approaches which we can consider when we plan for new construction, we can see greater value to be recovered in our existing building stock as a consequence in the region of Hot Summer and Cold Winter.

Hangzhou Sanxiang Impression Co. Ltd


The research and our interactions with Professor C. Alan Short have had important impact on designing lower energy buildings in this region. The research has broadened the range of methods which we can consider when we plan for refurbishment or new construction.

Zhejiang Huazhi Technology Promotion Centre


The Climate Risk and Resilience Lead at Fraser Health and her Energy and Environmental sustainability (EES) colleagues subsequently translated Short’s principles and methodologies to a British Columbia context, developed projects with national-level partners, and shared results and insights with communities of practice.

Director of Energy and Environmental Sustainability, Fraser Health

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SWIPE LEFT FOR ENGLISH


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新世代


“我认为建成环境要达到艰困的全球减碳目标是可行的,通过审慎设计传统材料也能降低需求。”肖特说道。


然而,改变发生得太慢,肖特形容建筑业是个“保守的产业”,“新的世纪都过了22年了,几乎没有任何迹象预示崭新低碳建筑的出现。”


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艾伦·肖特教授(1974年毕业于三一学院),剑桥大学克莱尔学院院长


尽管肖特对于建筑业不愿有效回应全球变暖感到失望,他说他“还是对新世代的建筑师和工程师感到乐观,特别是我在剑桥大学有幸教导和测试的那些学生。”