Effect of pumping-recharge well structures on heat transfer characteristics of double-well groundwater heat pump systems considering hydrothermal coupling

Li, Yuxi; Shu, Longcang; Tao, Yuezan; Niu, Shuyao; Wang, Zhe

doi:10.1016/j.enconman.2021.114871

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…However, owing to the recharge blockage, the application of GSHP and geothermal energy resources is greatly hindered. Therefore, strengthening the research on groundwater artificial recharge and breaking through the bottleneck of recharge blockage is of great significance to the exploitation and utilization of oil, geothermal resources and the prevention of land subsidence (Bell et al, 2008; Li et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Pore‐scale simulation of the influence of temperature on particle motion based on LBM‐IBM‐DEM method

Lu,

Xue,

Chen

et al. 2023

Hydrological Processes

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Investigation on the depositional characteristics of suspended particles in porous media is crucial to prevent groundwater artificial recharge blockage. In this study, first, particle image velocimetry (PIV) technology was used to extract a 2D porous media skeleton structure formed by spherical superabsorbent resin particles. Second, based on the temperature influence analysis on the physical–chemical properties (including fluid viscosity, relative dielectric constant and zeta potential of solid surface), the Lattice Boltzmann Method‐Immersed Moving Boundary‐Discrete Element Method (LBM‐IBM‐DEM) coupling model was used to simulate suspended particle motion in porous media. The relationships between the suspended particle motion states, stable deposition forms, suspended particle spatial distribution and the collaborative influence of pressure difference, particle size and temperature are innovatively revealed. The results are as follows: (1) In the ‘first temperature effect range’, the suspended particles change in two states of detachment after adsorption and stable deposition. In the ‘second temperature effect range’, the suspended particles change in two states of stable deposition and migration. (2) The non‐uniformity of suspended particle spatial distribution in porous medium increases with the increasing of particle size and the decreasing of pressure difference. However, the temperature effect on suspended particle spatial distribution is weak. (3) Influence weights of pressure difference, particle size and temperature on the suspended particle motion are 2.92, 1.04 and 0.8, respectively.

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Section: Introductionmentioning

confidence: 99%

“…bottleneck of recharge blockage is of great significance to the exploitation and utilization of oil, geothermal resources and the prevention of land subsidence (Bell et al, 2008;Li et al, 2021).…”

mentioning

confidence: 99%

Pore‐scale simulation of the influence of temperature on particle motion based on LBM‐IBM‐DEM method

Lu,

Xue,

Chen

et al. 2023

Hydrological Processes

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show abstract

“…Thermal interference among the GSHP systems can be studied by spectral analysis and sinusoidal regression methods [21]. Physical modeling with laboratory tests is used less commonly [22][23][24]. Therefore, the reinjection well should be placed in the gradient direction.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Water Temperature on the Hydrogeochemical Composition of Groundwater during Water Extraction and Reinjection with Geothermal Heat

Verbovšek

2023

Energies

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This study presents a simulation of potential changes in groundwater in three wells within a Quaternary gravel aquifer in the city of Ljubljana when groundwater cooled by about 4 °C is reinjected into it. The research focuses on the mass transport of calcite in the vicinity of boreholes. According to our results, the impact of the changes in the geochemical composition of the water is relatively small (around 1%). Although the waters are approximately in equilibrium, calcite may be dissolved and sometimes precipitated within the aquifer when cooled water is reinjected into it. The amounts of precipitated calcite always decrease with decreasing temperatures of the reinjected water, which can lead to calcite dissolution if the temperature difference is large enough and the water is only slightly oversaturated. This novel finding is significant since previously published studies have mostly focused on understanding the scaling (precipitation) of calcite and not its dissolution. The mass transfer of calcite is relatively low, but in a scenario of long-term pumping for several years, such low values could lead to a dissolved or precipitated mass of several hundreds of kilograms of calcite per year (at a pumping rate of 46 L/s).

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How groundwater flow field change affects heat transfer in groundwater heat pumps based on physical experiments

Shu

Niu

et al. 2023

Energy and Buildings

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Effect of pumping-recharge well structures on heat transfer characteristics of double-well groundwater heat pump systems considering hydrothermal coupling

Cited by 6 publications

References 29 publications

Pore‐scale simulation of the influence of temperature on particle motion based on LBM‐IBM‐DEM method

Pore‐scale simulation of the influence of temperature on particle motion based on LBM‐IBM‐DEM method

The Influence of Water Temperature on the Hydrogeochemical Composition of Groundwater during Water Extraction and Reinjection with Geothermal Heat

How groundwater flow field change affects heat transfer in groundwater heat pumps based on physical experiments

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