COMPARATIVE ANALYSIS OF SOLAR-GROUND SOURCE HEAT PUMP PHASE CHANGE STORAGE HEATING SYSTEM BASED ON TRNSYS

Zhang Yalei; Cui Haiting; Wang Chao; Wang Chen; Chen Haosong

doi:10.19912/j.0254-0096.tynxb.2023-1554

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 579-586. DOI: 10.19912/j.0254-0096.tynxb.2023-1554

COMPARATIVE ANALYSIS OF SOLAR-GROUND SOURCE HEAT PUMP PHASE CHANGE STORAGE HEATING SYSTEM BASED ON TRNSYS

Zhang Yalei, Cui Haiting, Wang Chao, Wang Chen, Chen Haosong

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Abstract

The research focused on reducing energy consumption in greenhouse buildings by designing a solar-ground source heat pump phase-change heat storage heating system （SGSHPP-CHSH） based on an existing solar-ground source heat pump heating system （SGSHPH） in a greenhouse located in Hebei Province. Simulation models of both systems were built using TRNSYS software, and the simulation results and influencing factors were compared and analyzed. The findings indicate that the solar collector heat collection of the SGSHPP-CHSH is 10.75% higher than that of the SGSHPH throughout the entire heating season. Additionally, the phase change storage tank's temperature decreased from 49.4 ℃ to 34.4 ℃, resulting in reduced energy consumption for the heat pump unit （from 10145 kWh to 7843 kWh） and increased COP of the heat pump system （from 2.68 to 3.36）. Similarly, for the SGSHPH, there was a decrease in water supply temperature from 45 ℃ to 30 ℃, reduced energy consumption for the heat pump unit （from 12837 kWh to 8739 kWh）, and an increased COP of the unit （from 2.39 to 3.43）. Furthermore, When the solar collection area of the SGSHPH is 48 m², and the solar collection area of the SGSHPP-CHSH is 39 m², the soil heat storage in both heating systems during non-heating seasons equals to the soil heat extraction during heating seasons, effectively maintaining a balanced thermal state within the soil.

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solar energy / heat pump systems / heating / TRNSYS simulation

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Zhang Yalei, Cui Haiting, Wang Chao, Wang Chen, Chen Haosong. COMPARATIVE ANALYSIS OF SOLAR-GROUND SOURCE HEAT PUMP PHASE CHANGE STORAGE HEATING SYSTEM BASED ON TRNSYS[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 579-586 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1554

References

[1] 黄璜, 刘然, 李茜, 等. 地热能多级利用技术综述[J]. 热力发电, 2021,50(9): 1-10.
HUANG H, LIU R, LI Q, et al.Overview on multi-level utilization techniques of geothermal energy[J]. Thermal power generation, 2021,50(9): 1-10.
[2] 龚赞, 刘益才, 邓炎, 等. 太阳能热泵系统配置形式及其研究进展[J]. 太阳能学报, 2023, 44(4): 506-515.
GONG Z, LIU Y C, DENG Y, et al.Configuration forms and research progress of solar assisted heat pump system[J]. Acta energiae solaris sinica, 2023, 44(4): 506-515.
[3] 张昕宇, 边萌萌, 李博佳, 等. 建筑太阳能热利用技术研究进展与展望[J]. 建筑科学, 2022, 38(10): 268-274.
ZHANG X Y, BIAN M M, LI B J, et al.Research progress and outlook of solar thermal technology in buildings[J]. Building science, 2022, 38(10): 268-274.
[4] 李昊轩. 缓解地源热泵系统土壤热失衡问题技术现状[J]. 区域供热, 2021(1): 23-28, 37.
LI H X.Current situation of technology to alleviate soil thermal imbalance of ground source heat pump system[J]. District heating, 2021(1): 23-28, 37.
[5] 刘广平, 骆超, 邱泽晶, 等. 太阳能-土壤源热泵联合供能系统的研究进展[J]. 制冷与空调, 2017,17(10): 8-15, 65.
LIU G P, LUO C, QIU Z J, et al.Research progress on solar-ground source heat pump combined power system[J]. Refrigeration and air-conditioning, 2017, 17(10): 8-15,65.
[6] 郭海丰, 杨旭升, 李亚鑫. 基于跨季热利用的土壤蓄热发展现状[J]. 智能城市, 2023, 9(3):44-46.
GUO H F, YANG X S, LI Y X.Development status of soil heat storage based on inter-seasonal heat utilization[J]. Intelligent city, 2023, 9(3): 44-46.
[7] ESEN M, YUKSEL T.Experimental evaluation of using various renewable energy sources for heating a greenhouse[J]. Energy and buildings, 2013, 65: 340-351.
[8] 王其良, 周恩泽, 屠丽娟, 等. 基于太阳能补热的多源互补供暖系统优化研究[J]. 太阳能学报, 2021, 42(11): 178-185.
WANG Q L, ZHOU E Z, TU L J, et al.Optimization research on multi-source complementary heating system based on solar heating[J]. Acta energiae solaris sinica,2021, 42(11): 178-185.
[9] 杨震, 陈翔燕, 刘诚, 等. 一种基于BP神经网络的太阳能-土壤源热泵复合系统供暖策略仿真[J]. 太阳能学报, 2022, 43(8): 224-229.
YANG Z, CHEN X Y, LIU C, et al.Simulation on a heating strategy based on BP neural network of solar-ground source heat pump composite system[J]. Acta energiae solaris sinica, 2022, 43(8): 224-229.
[10] 刘艳峰, 宋梦瑶, 周勇, 等. 分区串并联式太阳能-地源热泵跨季节蓄热组合系统性能研究[J]. 太阳能学报, 2021, 42(12): 71-79.
LIU Y F, SONG M Y, ZHOU Y, et al.Research on performance of subarea series-parallel solar assisted ground source heat pump system[J]. Acta energiae solaris sinica, 2021, 42(12): 71-79.
[11] 李兰, 刘志强, 刘佳星. 对一种多能源互补集成系统的运行特性及优化研究[J]. 太阳能学报, 2020, 41(7): 49-56.
LI L, LIU Z Q, LIU J X.Research on operation characteristics and optimization of a multi-energy complementary integrated system[J]. Acta energiae solaris sinica, 2020, 41(7): 49-56.
[12] 刘胜, 梁珍. 采用空气源热泵的温室大棚水蓄热供暖系统模拟研究[J]. 制冷与空调, 2023, 23(4): 15-21.
LIU S, LIANG Z.Simulation of water storage heating system in greenhouse with air source heat pump[J]. Refrigeration and air-conditioning, 2023, 23(4): 15-21.
[13] 张亚磊, 崔海亭, 王晨, 等. 基于低谷电的太阳能-地源热泵相变蓄热供暖系统研究[J]. 储能科学与技术, 2023,12(12): 3789-3798.
ZHANG Y L, CUI H T, WANG C, et al.Research on a phase-change storage heating system of a solar-ground source heat pump based on low current[J]. Energy storage science and technology, 2023, 12(12): 3789-3798.
[14] 丁兴江, 章学来, 徐笑锋, 等. 相变储能技术在现代温室工程加热系统中的应用[J]. 能源研究与利用, 2018(6): 34-38.
DING X J, ZHANG X L, XU X F, et al.Application of phase change energy storage technology in heating system of modern greenhouse engineering[J]. Energy research and utilization, 2018(6): 34-38.
[15] YANG X F, SUN D L, LI J F, et al.Demonstration study on ground source heat pump heating system with solar thermal energy storage for greenhouse heating[J]. Journal of energy storage, 2022, 54: 105298.