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王建强, 杨培林, 鲍玲玲. 日光温室中太阳能-地源热泵跨季节分热特性研究[J]. 太阳能学报, 2025,46(9):254-262.
王建强, 杨培林, 鲍玲玲. 日光温室中太阳能-地源热泵跨季节分热特性研究[J]. 太阳能学报, 2025,46(9):254-262. DOI: doi:10.19912/j.0254-0096.tynxb.2024-0841.
为有效解决日光温室大棚中地源热泵(GSHP)系统运行导致的土壤温度逐年降低和太阳能辅助地源热泵系统(SAGSHP)导致的夏季土壤温度过高的问题
提出一种SAGSHP跨季节分区蓄热模式
将地埋管分为4个区域
采用TRNSYS-18软件
通过对不同跨季节分区蓄热运行模式的仿真模拟
得到最佳分区蓄热策略。结果表明:最佳模式为春季过渡与供冷季1/2区域连接太阳能蓄热
秋季过渡与供暖季全区连接太阳能蓄热
同时秋季过渡季1/2区域供暖或供冷
其余时间段全区供暖或供冷。最佳模式土壤温度在10 a内保持稳定
热泵机组在夏季运行时其性能系数(COP)降低最为缓慢
机组运行稳定性高于传统SAGSHP系统
10 a内系统运行的性能系数(SCOP)平均每年高于GSHP系统57%、高于传统SAGSHP系统5.4%
且最佳模式系统运行SCOP逐年升高
第10年最佳模式系统运行SCOP高于GSHP系统70.6%、高于传统SAGSHP系统10.4%。
To effectively address the issues of soil temperature decreasing annually in ground source heat pump (GSHP) systems and excessive soil temperature in summer caused by solar-assisted ground source heat pump (SAGSHP) systems in solar greenhouses
this paper proposes a cross-seasonal partitioned thermal storage mode for SAGSHP systems. The buried pipes are divided into four zones
and TRNSYS-18 simulation is used to model different seasonal operation modes
leading to the optimal partitioned thermal storage strategy. Results show that the optimal mode involves connecting half of the solar thermal storage during the spring transition and cooling seasons
and the entire area during the autumn transition and heating seasons. Additionally
during the autumn transition season
half of the zone provide heating or cooling
while the entire area is used for heating or cooling during other periods. In this optimal mode
soil temperature remains stable over ten years
the Coefficient of Performance() decrease in summer is minimized
and the system's operational stability is higher than traditional SAGSHP systems. Over ten years
the System Coefficient of Performance () is on average 57% higher than GSHP systems and 5.4% higher than that of traditional SAGSHP systems. In the tenth year
the is 70.6% higher than GSHP systems and 10.4% higher than that of traditional SAGSHP systems. This study provides a reliable strategy for the efficient and stable operation of greenhouse GSHP systems.
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