综合智慧能源 ›› 2023, Vol. 45 ›› Issue (4): 52-58.doi: 10.3969/j.issn.2097-0706.2023.04.008

• 工程研究与应用 • 上一篇    下一篇

严寒地区太阳能跨季节蓄热热泵系统研究

窦子慧(), 刘景霞(), 李宝利()   

  1. 内蒙古科技大学 信息工程学院,内蒙古 包头 014017
  • 收稿日期:2022-11-30 修回日期:2022-12-27 接受日期:2023-04-25 出版日期:2023-04-25 发布日期:2023-05-06
  • 通讯作者: 刘景霞
  • 作者简介:窦子慧(1997),男,在读硕士研究生,从事新能源冷热联供、跨季节储能方面的研究,cmj52306@163.com
    李宝利(1967),男,高级工程师,从事新能源电力系统、分布式能源综合利用、稀土智能化冶炼方面的研究,lbl801228@163.com
  • 基金资助:
    内蒙古自治区应用技术研究与开发资金项目(201802001)

Study on the solar-assisted ground-source heat pump system with seasonal heat storage in cold regions

DOU Zihui(), LIU Jingxia(), LI Baoli()   

  1. School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou 014017, China
  • Received:2022-11-30 Revised:2022-12-27 Accepted:2023-04-25 Online:2023-04-25 Published:2023-05-06
  • Contact: LIU Jingxia
  • Supported by:
    Applied Technology Research and Development Funding Project of Inner Mongolia Autonomous Region(201802001)

摘要:

针对我国严寒地区冬季热负荷远大于夏季冷负荷导致的土壤热失衡问题,选取包头市某医院为对象,应用TRNSYS仿真软件分析太阳能跨季节蓄热土壤源热泵系统的性能。分析结果表明:跨季节蓄热系统运行10年内,土壤温度由10.00 ℃提升到10.68 ℃,太阳能-土壤源热泵复合系统的土壤温度下降至5.62 ℃。此时跨季节蓄热模式热泵机组的性能系数为3.25,同比上涨2.20%;供冷季热泵机组的性能系数为7.55,同比上涨0.13%。同时,总耗电量相较于复合系统减少11.54%。由此可见,太阳能跨季节蓄热模式不仅可以提高土壤源热泵制热性能系数,又能有效缓解土壤热失衡的现象,同时节约系统总耗电量。

关键词: 太阳能, 太阳能跨季节蓄热土壤源热泵, 太阳能-土壤源热泵, TRNSYS, 跨季节蓄热, 土壤源热泵

Abstract:

In view of the soil heat imbalance caused by the manifested gap between higher cooling load in summer and lower heating load in winter in cold regions,TRNSYS simulation software was selected to analyze the performance of a solar-assisted ground-source heat pump(SAGSHP)system with seasonal heat storage in a hospital in Baotou City.The analysis results show that the soil temperature has increased from 10.00 ℃ to 10.68 ℃ after 10-year operation of the seasonal heat storage system,while the soil temperature has decreased by 5.62 ℃ after 10-year operation of a solar energy coupled ground source heat pump (SGSHP)system.The COP of the SAGSHP system taking seasonal heat storage was 3.25,up 2.20% year on year,and its EER was 7.55,up 0.13% year on year.At the same time, the total power consumption of the SAGSHP system taking seasonal heat storage is reduced by 11.54% compared with that of the SGSHP system.It can be seen that SAGSHP systems taking seasonal heat storage mode can not only improve the heating performance coefficient of soil source heat pumps,but also alleviate the soil heat imbalance and save the power consumption of the whole system.

Key words: solar energy, solar-assisted ground-source heat pump with seasonal heat storage, solar-ground source heat pump, TRNSYS, cross-season heat storage, ground source heat pump

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