矿山太阳能耦合充填体热泵系统性能研究
Performance of the Solar Coupled Backfill Heat Pump System in Mine
赵玉娇 1王梦瑶 2张海龙 1刘浪 3鲁雪莹 1卢大川2
作者信息
- 1. 西安科技大学 能源学院,西安 710054
- 2. 西安科技大学 建筑与土木工程学院,西安 710054
- 3. 西安科技大学 能源学院,西安 710054;教育部西部矿井开采及灾害防治重点实验室,西安 710054
- 折叠
摘要
太阳能热泵和土壤源的结合应用不仅大大提高了清洁能源的利用率,还能很好地解决土壤因冬、夏季负荷不平衡而导致的温度场降低问题.介绍了太阳能热泵系统的分类和存在的问题,提出太阳能耦合土壤源热泵系统的必要性.针对矿井条件,进一步提出了太阳能耦合充填体热泵系统的学术理念,分析了两者结合的可能性,并以石家庄为例用TRNSYS软件进行模拟.阐述了其在夏季与过渡季蓄热、在冬季供暖的运行模式,分析了输出结果以及该系统的利用价值.结果表明:相较无太阳能蓄热充填体温度场变化率为11.56%的情况,有太阳能蓄热时温度场变化率仅为 3.67%.太阳能耦合充填体热泵系统中充填体总吸热量为304377.90 kW·h,充填体总释热量为 222461.89 kW·h.相当于节省标煤 27.36 t,减少二氧化碳排放68.21 t.为后续充填体储热及矿区热利用提供了参考.
Abstract
The combined application of solar heat pump and soil source not only greatly improves the utilization rate of clean energy,but also solves the temperature field reduction caused by the imbalance of soil load in winter and summer.The classification and existing problems of solar heat pump system is introduced to propose the necessity of solar coupled soil source heat pump system.According to the mine conditions,the academic concept of solar-coupled backfill heat pump system is further proposed,the possibility of combining the two is analyzed,and the TRNSYS software is used to simulate the project in Shijiazhuang.The operation mode of heat storage in summer and transition season and heating in winter is described.The output results and the utilization value of the system are analyzed.The results show that compared with the case where the temperature field variation rate of backfill is 11.56%without solar heat storage,the temperature field variation rate is only 3.67%with solar heat storage.In the solar heat pump coupled backfill heat pump system,the total absorption heat of the filling body is 304377.90 kW·h,and the total release heat of the filling body is 222461.89 kW·h.It is equivalent to saving 27.36 tons of standard coal,reducing carbon emissions by 18.6 tons and reducing carbon dioxide emissions by 68.21 tons.The reference is provided for subsequent backfill heat storage and heat utilization in mining area.
关键词
太阳能热泵系统/耦合系统/TRNSYS/充填体/运行模式Key words
solar heat pump system/coupling system/TRNSYS/backfill/operation mode引用本文复制引用
基金项目
国家自然科学基金青年项目(52104148)
中国博士后科学基金面上项目(2021M692593)
出版年
2024
NETL
NSTL
万方数据