基于主成分-聚类分析法的建筑节能气候区划
Further climatic zoning of building energy efficiency based on principal component analysis and cluster analysis
摘要：
通过分析影响建筑冷热耗量的气候指标，提出了以采暖度日数HDD18、空调度日数CDD26、最冷月平均温度、最热月平均温度、冬季太阳辐射热量、夏季太阳辐射热量、冬季含湿量和夏季含湿量8个气候指标作为建筑节能气候区划指标，采用主成分分析与聚类分析相结合的区划方法对我国270个城市进行了建筑节能气候区划，划分为严寒干热高辐区、严寒凉爽高辐区、严寒无夏区、寒冷微热区、温和炎热湿润区、温和凉爽区和阴冷湿热区，介绍了这7个气候区的主要气候特征和主要的地理范围，明确了各区的建筑节能重点和适宜的技术策略。
Abstract：
Taking HDD18, CDD26, average temperature of the coldest month, average temperature of the hottest month, solar radiation in winter, solar radiation in summer, humidity ratio in winter and humidity ratio in summer as division indexes based on the analysis of climate indexes impacting the building cooling and heating energy consumptions, applies the principal component analysis and cluster analysis to building energy efficiency climatic zoning of the 270 cities in China, which are divided into the severe-cold dry heat high-solar-radiation zone, severe-cold cool high-solar-radiation zone, severe-cold summer free zone, cold slight-hot zone, temperate-hot-humid zone, temperate-cool zone and raw hot-wet zone. Describes the main climatic characteristics and geographic distribution of the seven climate zones, and clarifies the key point of building energy efficiency and the appropriate technical strategies respectively.
Keywords:building energy efficiency, climatic zoning, principal component analysis, cluster analysis, climate index