A Long-Term Dynamic Analysis of Heat Pumps Coupled to Ground Heated by Solar Collectors

被引:1
|
作者
Ballerini, Vincenzo [1 ]
di Schio, Eugenia Rossi [1 ]
Valdiserri, Paolo [1 ]
Naldi, Claudia [1 ]
Dongellini, Matteo [1 ]
机构
[1] Alma Mater Studiorum Univ Bologna, Dept Ind Engn DIN, Viale Risorgimento 2, I-40136 Bologna, Italy
来源
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 13期
关键词
ground-source heat pumps; solar collectors; Trnsys; dynamic simulations; SYSTEM;
D O I
10.3390/app13137651
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In agreement with the decarbonization of the building sector to meet the 2050 climate neutrality targets, borehole thermal storage for solar energy represents a potential solution to increase the energy efficiency of renewable energy plants. As is well known, electricity is not the optimum solution to integrate large inflows of fluctuating renewable energy. In the present paper, we investigate the possibility to use the solar collector to give energy to the borehole field. In detail, a solar-assisted geothermal heat pump is applied to a school located in Milan, Italy. In winter, both the energy from the solar collector and the heat pump are collected into a storage tank connected to the emission terminals, whereas, in summer, as there is no energy demand, the hot water from the solar collector flows into the geothermal probes. By means of this seasonal thermal energy storage technology, the intermittent solar energy collected and stored during the summer months can be utilized during the winter months when the heating demand is high. A long-term dynamic analysis is performed by employing Trnsys. The results show that solar collectors coupled with ground-source heat pumps can give an important contribution to the soil temperature drift, and this also applies in cases of un-balanced loads during the heating season. Moreover, the employment of solar collectors increases the seasonal coefficient of performance of the heat pumps and may rise to reductions to the probes field.
引用
收藏
页数:12
相关论文
共 50 条
  • [21] Heat Pumps - a Long-Term Solution to Cutting Energy Costs
    Anon
    Australian refrigeration, Air conditioning and heating, 1988, 42 (08): : 34 - 36
  • [22] An analysis of solar assisted ground source heat pumps in cold climates
    Emmi, Giuseppe
    Zarrella, Angelo
    De Carli, Michele
    Galgaro, Antonio
    ENERGY CONVERSION AND MANAGEMENT, 2015, 106 : 660 - 675
  • [23] Ground heat exchanger thermal imbalance prevention using dynamic long-term ground temperature predictions
    Dacquay, Connor
    Lohrenz, Ed
    Fujii, Hikari
    INTERNATIONAL JOURNAL OF GREEN ENERGY, 2022, 19 (09) : 977 - 985
  • [24] Dynamic thermal performance of horizontal ground source heat pumps The impact of coupled heat and moisture transfer
    Gan, Guohui
    ENERGY, 2018, 152 : 877 - 887
  • [25] Forecast and analysis of long-term operation of ground source heat pump system
    Qi, Zi-Shu
    Gao, Qing
    Yu, Ming
    Liu, Yan
    Bai, Li
    Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition), 2012, 42 (04): : 877 - 881
  • [26] FLOW ARCHITECTURES FOR GROUND-COUPLED HEAT PUMPS
    Lorente, S.
    Bejan, A.
    PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2016, VOL. 8, 2017,
  • [27] Studies of heat pumps using direct expansion type solar collectors
    Ito, S
    Miura, N
    Takano, Y
    JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 2005, 127 (01): : 60 - 64
  • [28] DERIVATION OF METHOD FOR PREDICTING LONG-TERM AVERAGE ENERGY DELIVERY OF SOLAR COLLECTORS
    COLLARESPEREIRA, M
    RABL, A
    SOLAR ENERGY, 1979, 23 (03) : 223 - 233
  • [29] Optimization design on experimental system for space heating of a ground coupled heat pump with solar thermal collectors
    Cai, Yingling
    ENERGY DEVELOPMENT, PTS 1-4, 2014, 860-863 : 196 - +
  • [30] Long-Term Temperature Evaluation of a Ground-Coupled Heat Pump System Subject to Groundwater Flow
    Jaziri, Nehed
    Raymond, Jasmin
    Giordano, Nicolo
    Molson, John
    ENERGIES, 2020, 13 (01)