由逐月平均温度计算年度日数的关系式  

Relational Formula Between Monthly Mean Temperature and Yearly Degree-days

作　　者：高庆龙 杨柳[2] GAO Qing-long;YANG Liu(College of Architecture and Environment,Sichuan University,Chengdu 610065,China;School of Architecture,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]四川大学建筑与环境学院,成都610065 [2]西安建筑科技大学建筑学院,西安710055

出　　处：《建筑节能（中英文）》2021年第11期87-90,共4页Building Energy Efficiency

基　　金：“十三五”国家重点研发计划资助项目:“建筑节能设计基础参数研究”(2018YFC0704500)。

摘　　要：度日数是在一段时间内室外平均温度与指定温度差值的累积,表征一个地区长期以来寒冷或炎热的程度和持续的时间。度日数也是衡量一个地区建筑采暖和制冷需求量的一个重要指标,是估算建筑能耗和进行建筑节能气候分区的重要参数。但由于度日数的计算需要对长周期的气象数据进行统计而难以获取。通过分析月平均温度与月度日数之间的关系,提出了由易于获取的月平均温度即可计算年采暖度日数和冷度日数的简便关系式。利用该关系式,可以根据易于查询逐月平均温度计算获得该地区的采暖度日数和冷度日数,便于利用该参数进行建筑能耗估算和建筑节能气候分区。The index of degree-days is the accumulation of the difference between the average outdoor temperature and the basement temperature over a period of time,indicating the degree and duration of cold or hot in an area for a long time.Degree-days is an important index to measure the heating and cooling demand of buildings in an area,and it is also an important parameter for estimating building energy consumption and climate zones for building energy conservation.However,it is difficult to obtain,because the calculation of degree days requires long-period meteorological data.Based on the analysis of the relationship between the monthly mean temperature and the monthly degree-days,this paper proposes a simple formula for calculating the annual heating and cooling degree-days from the monthly mean temperature which is easy to obtain.By using this formula,the heating and cooling degree-days in this area can be calculated,which is convenient for building energy consumption estimation and to classify different climatic types or zones for building energy efficiency design.

关 键 词：月平均温度 采暖度日数 冷度日数 建筑节能气候分区 

分 类 号：TU11[建筑科学—建筑理论]