小型建筑太阳能跨季节蓄热系统设计与优化
Design and Optimization of Seasonal Thermal Energy Storage System for a Small Building
许波 1王思茗 1陈振乾 1徐志国 2陈翔燕2
作者信息
- 1. 东南大学能源与环境学院,南京 210000
- 2. 江苏盛世机电工程有限公司,连云港 222000
- 折叠
摘要
采用太阳能跨季节蓄热系统实现夏储冬用,为住宅建筑供暖和供应生活热水能够有效解决太阳能的季节性供需不匹配的问题.目前大多数跨季节蓄热工程都是针对社区规模的系统,事实上单栋住宅的分布式蓄热系统由于减少了长距离输送的热损而独具优势.本研究基于夏热冬冷气候特点为建筑面积约150 m2的民用建筑设计了一种长短期蓄热相结合的跨季节蓄热采暖-热水两联供系统,并进行了能量平衡分析和系统全年仿真模拟,分析了系统能效影响因素.研究结果表明,通过系统的合理配置可以实现90％以上的太阳能保证率,根据优化结果,选择35 m2的集热面积和50 m3的季节蓄热水箱体积,预计将实现92.3％的太阳能保证率,为在建筑节能及暖通空调蓄热等领域的工程应用提供了参考.
Abstract
The solar seasonal heat storage system can store summer heat for winter heating and provide domestic hot water for residential buildings,which can effectively solve the seasonal mismatch between supply and demand of solar energy.At present,most of the seasonal heat storage projects are community-scale systems,and there is a lack of system design research on small single-building scale.In fact,the distributed heat storage system of a single house has an advantage because it reduces heat loss from long-distance transportation.Based on the characteristics of hot summer and cold winter climate,a two-way heating and hot water supply system with long-term and short-term heat storage is designed for civil buildings with a building area of about 150 m2.Energy balance analysis and system year-round simulation are carried out,and the influencing factors of system energy efficiency are analyzed.The results show that more than 90％of solar energy can be guaranteed through the rational configuration of the system.Selecting 35 m2 heat collecting area and 50 m3 seasonal water storage tank volume according to the optimization results,92.3％solar energy guarantee rate is expected to be achieved,which provides reference for engineering applications in building energy saving and HVAC heat storage.
关键词
太阳能/跨季节蓄热/供暖/瞬态仿真/小型建筑Key words
solar Energy/seasonal Thermal storage/space heating/transient simulation/small building引用本文复制引用
出版年
2024
NETL
NSTL
万方数据