太阳能供暖中辅助热负荷需求量分析及软件开发

Analysis and Software Development for Calculating Heat Load of Auxiliary Heat Source in Solar Heating

目的开发出可以供专业零基础的人使用的,可灵活计算不同地区、不同房型的太阳能供暖时添加多少辅助热负荷的计算软件.方法利用VB编制平台,建立全国气候资料库、辐射强度和典型房间等数据库,计算建筑供热所需负荷和集热器能够提供的负荷,得出辅助热源需提供的热负荷.结果以沈阳地区和北京地区为例,给出一年中不同太阳能强度划分区域辅助热源最大添加量的大小和时间;各区域过渡季节太阳能集热器与建筑所需热负荷的匹配情况.两区域辅助热源最大添加量均在1月,且供热辅助热源的添加主要集中在冬季;过渡季节按标准已安装的太阳能集热器基本可以提供建筑供热所需热负荷.结论此软件计算结果与实测结果基本相符,具有可靠性;可以对不同地点、不同房型和不同的集热器进行计算,具有广泛性;采用数据库的形式,具有开放性;结果以图表的形式输出,具有直观性.

The paper aims to develop the software to calculate auxiliary heat source in solar heating for different rooms in different regions.The software also aims to be used by non-professional people,it should be easy to operate with fast calculation and broad scope.With VB platform,authors established Chinese climate data database,solar radiation intensity database,and typical room database.Authors also calculated the needed heat load of auxiliary heat source,the heat load of building consumption to keep the room at standard temperature,and the heat load provided by installed solar collector.Taking Shenyang and Beijing regions as examples,authors calculated the largest value of added heat load and the time period to auxiliary heat source in one year for the solar heating building in different regions with different solar intensity classifications.The conclusions are shown that the largest heat load of auxiliary heat source is in January in both two regions,the addition of auxiliary heat source is mainly concentrated in the winter;and the heat load of solar collectors which have been installed in accordance with the standard can meet the need of the heat load for building heating in transitional seasons in both two regions.Measured results and the results of this software match,so they are reliable.This software could calculate the heat load of the auxiliary heat source in different locations,for different rooms and different solar collectors,so it could be used broadly.It is also opened with many databases.Outputs are in the form of graphs as well as tables so it is easily understood.