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太阳能-地源热泵系统的运行模拟
引用本文:朱大龙,刁乃仁. 太阳能-地源热泵系统的运行模拟[J]. 建筑节能, 2016, 0(5): 26-30. DOI: 10.3969/j.issn.1673-7237.2016.05.007
作者姓名:朱大龙  刁乃仁
作者单位:山东建筑大学 热能工程学院,济南,250101
基金项目:"十二五"国家科技支撑计划项目子课题"城市社区能源资源利用优化集成技术研究与示范研究"(2012BAJ06B03-01)
摘    要:以济南市某工程为例,使用DeST软件对该工程进行年逐时负荷模拟,得到冷负荷峰值为313.3 kW,热负荷峰值为293.7 kW,累计年排热量为166 451 kW·h,累计年提热量为210 380 kW·h,热不平衡率为20.88%。利用TRNSYS软件建立了太阳能-地源热泵系统动态模型,并进行模拟分析。当地土壤初始温度均为15.3℃,复合系统的模拟结果显示系统运行20年,地温均值一直保持在14.8~16.4℃的稳定范围内。研究表明:太阳能-地源热泵复合系统具有良好的蓄热能力,提高了太阳能利用率,可有效解决寒冷地区地源热泵的冷热不平衡问题,是解决严寒地区供暖问题的一个重要途径。

关 键 词:太阳能  DeST  不平衡  TRNSYS

Operation Simulation of Solar Energy GSPH Compound System
Abstract:The thesis uses DeST to simulate yearly cooling and heating load for a project in Jinan. The biggest cooling load is 313.3 kW, the biggest heating load is 293.7 kW. Annual cumulative exhausting heat quantity is 166451 kW·h, with 210380 kW·h drawing heat. The unbalance rate is 20.88%. The thesis describes solar energy compound system program. Then according to the above system programs, dynamic models are established to simulate and evaluate in the TRNSYS. If the initial temperature of soil heat retainer is 15.3 ℃, the solar energy compound system will operate constantly for 20 years, and the average ground temperature always remain stable fluctuation range from 14.8 ℃ to 16.4 ℃. The research results show that soil heat storage system based on GSHP solar energy has a good heat storage capacity, and it can improve the solar thermal utilization rate, effectively solving the cold and heat imbalance problems in the cold region with more drawing heat in winter and less releasing heat in summer. It is an important way to resolve heating in cold areas.
Keywords:solar energy  DeST  imbalance  TRNSYS
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