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Climatic zoning for the building thermal design in China's rural areas

机译：中国农村建筑热设计气候分区

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摘要

Building climatic zoning is a prerequisite for implementing building energy efficiency technology, which can help code makers and architects have an accurate understanding of the local climatic conditions. It takes the extreme monthly average temperature as the zoning index in the existing climatic zoning of rural areas in China. There will be unreasonable design phenomena of insufficient or excessive thermal insulation for a building envelope in rural areas. Aiming at the above problems, this paper modifies the current zoning. This research established the cooling and heating degree-day indexes HDD14 and CDD30 based on the thermal comfort characteristics of rural occupants and used the threshold method to subdivide rural areas into eight sub-zones. The results show that the problem of insufficient or excessive thermal insulation in rural areas can be effectively solved by replacing the extreme monthly average temperature index with the degree day index and the annual cumulative building load can be reduced by 6.4% on average without increasing the insulation cost. After more detailed zoning, the variance within the group is reduced and it accurately describes climate diversity, which is conducive to implementing climate-responsive energy-saving design in each subzone. Practical application : The major purpose of this paper is to solve the problem of unreasonable climate zone boundaries specified in the existing Design Standard for Energy Efficiency of Rural Residential Buildings. The existing zoning has led to conflicts between the actual heating demand and the building envelope thermal parameter limits specified in the standard. This work redefines the boundaries of the existing map using more up-to-date weather data to provide the right guidance for architectural designers.
机译：建筑气候分区是实施建筑能效技术的先决条件，该技术可以帮助代码制造商和建筑师对当地气候条件准确了解。它需要极端的月平均气温作为中国农村地区现有气候分区的分区指数。农村地区建筑信封的不足或过度隔热的不合理设计现象。旨在上述问题，本文修改了当前的分区。该研究基于农村居住者的热舒适特性建立了冷却和加热程度的索引HDD14和CDD30，并利用阈值方法将农村地区缩小为八个子区。结果表明，通过用程度日指数取代极端月平均水平指数，可以有效地解决了农村地区的绝热性不足或过度保温的问题，并且每年累计建筑负荷平均可以减少6.4％而不增加绝缘成本。经过更详细的分区之后，减少了该组内的方差，并准确地描述了气候多样性，这有利于在每个子区域中实施气候响应节能设计。实际应用：本文的主要目的是解决农村住宅楼宇现行设计标准中规定的不合理气候区边界问题。现有的分区导致了实际供热需求与标准中规定的建筑包络热参数限制之间的冲突。这项工作使用更多最新的天气数据重新定义现有地图的边界，以提供建筑设计师的正确指导。

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