对夏热冬冷地区暖通空调气候特点的再认识
Re-understanding of HVAC climate characteristics in hot summer and cold winter zone
摘要：
夏热冬冷地区作为建筑热工设计的气候分区，主要着眼于室外空气干球温度，不能作为暖通空调系统设计的气候分区。根据GB 50736—2012《民用建筑供暖通风与空气调节设计规范》中规定的室内热舒适等级标准，利用焓湿图将室外空气状态划分为9个区。对夏热冬冷地区9个代表城市的全年室外空气热湿状态在焓湿图上9个区内的分布时数进行了统计分析，并分析了各代表城市室外空气热湿状态的年变化过程，初步得到了夏热冬冷地区全年的季节构成与划分。进一步分析了东西气候差异，为了更有针对性地研发和应用建筑热环境控制技术及提高能效，宜将夏热冬冷地区划分为东、西2个暖通空调气候区，东区为平原气候区，西区为山地气候区。
Abstract：
Hot summer and cold winter zone is one of the climate zones of building thermal design, mainly focusing on the dry-bulb temperature of outdoor air, which can not be used as the climate zone of HVAC system design. Based on the indoor thermal comfort grade standard stipulated in GB 50736-2012 Design code for heating, ventilation and air conditioning of civil buildings, divides outdoor air states into nine regions in psychrometric chart. For nine representative cities in hot summer and cold winter zone, calculates the distribution hours of outdoor air thermal and humidity state in nine regions of the psychrometric chart, analyses the annual variation process of outdoor air thermal and humidity state of each representative city, and preliminarily obtains the annual seasonal composition and division of the hot summer and cold winter zone. Further analyses the climate difference between east and west regions. In order to more specifically develop and apply building thermal environment control technology and improve energy efficiency, it is advisable to divide the hot summer and cold winter zone into two HVAC climate zones, with the plain climate zone in the east and the mountain climate zone in the west.
Keywords:hot summer and cold winter zone, indoor thermal comfort, thermal and humidity state of outdoor air, HVAC climate zone, energy saving rate