Zoning operation of multiple borehole ground heat exchangers to alleviate the ground thermal accumulation caused by unbalanced seasonal loads

Yu, Mingzhi; Zhang, Kai; Cao, Xun; Hu, Andrew Teh; Cui, Ping; Fang, Zhaohong

doi:10.1016/j.enbuild.2015.11.022

Cited by 25 publications

(7 citation statements)

References 16 publications

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“…Theoretical and experimental researches were carried out throughout previous years to expand a firm base for the performance and design assessment of BHE systems . A usual BHE‐ setting up is demonstrated through Figure .…”

Section: Status Of Gshp Technologymentioning

confidence: 99%

“…100 m [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Theoretical and experimental researches were carried out throughout previous years to expand a firm base for the performance and design assessment of BHE systems [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. A usual BHE-setting up is demonstrated through Figure 1.…”

Section: Status Of Gshp Technologymentioning

confidence: 99%

See 1 more Smart Citation

Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review

Ahmadi

Sadaghiani

et al. 2017

Env Prog and Sustain Energy

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Owing to the eye‐catching pros of high energy and environmental performances, numerous ground‐source heat pump (GSHP) systems have been employed in domestic and industrial buildings throughout the world. One of the proved renewable energy technologies is the GSHPs which is able to fulfill the gap between cooling and heating. The main contribution of this article is to present a fully description and critical review of the GSHP systems along with their current developments. At first, the energy efficiency and working standard of a heat pump are introduced. Furthermore, an expansive description of the GSHPs and its advances, and a fully explanation of the ground‐couplet (GCHP) heat pumps, ground‐water (GWHP), and surface water (SWHP) are provided. The mainly representative ground thermal response examination approaches and simulation for the vertical ground heat exchangers presently existing are reviewed counting the heat transfer progressions inside and outside the holes. Similarly, various info regarding a different GWHP by a heat exchanger with different structures, and the opportunity to gain the enhanced energy efficiency with joint cooling and heating using GCHP are explained. The numerous hybrid GCHP systems for heating or cooling‐dominated constructions are appropriately illustrated. It can be deduced that the GSHP technology can be employed both in hot and cold weather areas and the potential of energy saving is noteworthy. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1241–1265, 2018

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Section: Status Of Gshp Technologymentioning

confidence: 99%

Section: Status Of Gshp Technologymentioning

confidence: 99%

Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review

Ahmadi

Sadaghiani

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

show abstract

“…homogeneous heat load). However, Yu et al [32] have shown that heterogeneous heat loads (i.e. heat loads can be tuned independently in each BHE) are more effective to ensure thermal regeneration of the ground.…”

Section: Introductionmentioning

confidence: 99%

Analytical solution for multi-borehole heat exchangers field including discontinuous and heterogeneous heat loads

Coen

Baudin

Gérard

2021

Energy and Buildings

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“…However, the efficiency of most of GCHP systems decreases over time due to underground thermal imbalance [3][4][5][6]. Previous researchers have addressed this problem from a variety of perspectives: increasing borehole spacing or depth, using ground heat exchangers in different zones or increasing the natural heat recovery time by reducing the operation time of each ground loop zone [7][8][9][10]. Existing solutions for underground thermal imbalance are useful but merit further improvement.…”

Section: Introductionmentioning

confidence: 99%

Study on the Optimizing Operation of Exhaust Air Heat Recovery and Solar Energy Combined Thermal Compensation System for Ground-Coupled Heat Pump

Wang

Peng

et al. 2017

International Journal of Photoenergy

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This study proposed an exhaust air heat recovery and solar energy combined thermal compensation system (ESTC) for ground-coupled heat pumps. Based on the prediction of the next day’s exhaust air temperature and solar irradiance, an optimized thermal compensation (OTC) method was developed in this study as well, in which the exhaust air heat recovery compensator and solar energy compensator in the ESTC system run at high efficiency throughout various times of day. Moreover, a modified solar term similar days group (STSDG) method was proposed to improve the accuracy of solar irradiance prediction in hazy weather. This modified STSDG method was based on air quality forecast and AQI (air quality index) correction factors. Through analyzing the operating parameters and the simulation results of a case study, the ESTC system proved to have good performance and high efficiency in eliminating the heat imbalance by using the OTC method. The thermal compensation quantity per unit energy consumption (TEC) of ESTC under the proposed method was 1.25 times as high as that under the traditional operation method. The modified STSDG method also exhibited high accuracy. For the accumulated solar irradiance of the four highest daily radiation hours, the monthly mean absolute percentage error (MAPE) between the predicted values and the measured values was 6.35%.

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Zoning operation of multiple borehole ground heat exchangers to alleviate the ground thermal accumulation caused by unbalanced seasonal loads

Cited by 25 publications

References 16 publications

Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review

Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review

Analytical solution for multi-borehole heat exchangers field including discontinuous and heterogeneous heat loads

Study on the Optimizing Operation of Exhaust Air Heat Recovery and Solar Energy Combined Thermal Compensation System for Ground-Coupled Heat Pump

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