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基于动态热负荷的太阳能—地源热泵运行模式研究 被引量:7

Study on operating mode of solar-earth source heat pump system with dynamic heating load
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摘要 建立了太阳能—地源热泵系统一体化模型,以大连地区气候条件为基础,计算了供暖季某天内房间热负荷的逐时值。在动态热负荷基础上,对联合供暖系统在不同串联运行模式和并联运行模式不同分流比的运行工况进行了模拟计算,将模拟结果与实验数据对比,两者吻合较好。结果表明:房间热负荷的变化可影响热泵机组COP,联合运行模式在地温的恢复和系统节能方面均占优势。 An integrative model of the solar-earth source heat pump system(SESHPS) is proposed in this study.Based on the local climate condition(Dalian),the heat load of heating season by one day is calculated.The simulation of different series-connected modes is conducted.Furthermore,the simulations are also repeated for different shunt ratio of the same parallel connection mode on the condition of dynamic heating load.The numerical result was compared with the experimental data and they agree with each other very well.The result indicates that C OP is disturbed by the change of the heating load and the recovery of ground temperature and the energy efficiency is excellent in the joint operation mode.
出处 《热科学与技术》 CAS CSCD 2011年第2期146-151,共6页 Journal of Thermal Science and Technology
关键词 太阳能—地源热泵系统 动态热负荷 联合运行模式 节能 solar-earth source heat pump system combined heating operation mode dynamic heating load energy saving
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