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Dynamic simulation of ground source heat pump systems with nonstationary convolutions
(International Ground Source Heat Pump Association, 2022)
Advective processes related to groundwater motion and flow rates have a significant impact on the thermal performance of ground source heat pump systems. Including these elements during the design phase, however, remains ...
Forecasting hydraulic head changes in injection wells using LSTM network
(International Ground Source Heat Pump Association, 2022)
Monitoring of well's specific capacity is commonly used to plan maintenance of injection wells in open-loop GSHP and standing column well systems. However, this method does not consider the effect of temperature on hydraulic ...
Column experiments to anticipate clogging of standing column wells
(International Ground Source Heat Pump Association, 2022)
Standing column wells are a promising solution to reduce the environmental footprint of building energy consumption. Nevertheless, as in other open-loop wells, they can be affected by clogging processes if detrimental ...
Double source heat pump: A case study
(International Ground Source Heat Pump Association, 2018)
The design of a Ground Source Heat Pump (GSHP) system is critical because design choices affect the system's energy performance and operating conditions. If the thermal load profile on the ground side is unbalanced the ...
Pulsated Thermal Response Test experiments and modelling for ground thermal property estimation
(International Ground Source Heat Pump Association, 2018)
The Thermal Response Test (TRT) is a well known experimental technique for estimating both the ground thermal conductivity and the effective borehole heat exchangers (BHE) resistance in ground coupled heat pump (GCHP) ...
Soil thermal conductivity from early TRT logs using an active hybrid optic fibre system
(International Ground Source Heat Pump Association, 2018)
At the Molinella test site in Italy, a monitoring well has been equipped with a hybrid active optical fibre cable down to the depth of 100 m sealed with geothermal grouting. The cored borehole provided a full stratigraphic ...
Hydrogeothermal characterization and modelling of a standing column well experimental installation
(International Ground Source Heat Pump Association, 2018)
Standing column wells (SCW) are efficient ground heat exchangers that offer promising potential for integration in dense urban areas. Recent years have witnessed a growing interest in SCWs, resulting in the development of ...
Uncertainty assessment of the hydraulics properties surrounding a standing column well with a thermal response test
(International Ground Source Heat Pump Association, 2022)
The standing column well (SCW) is known for being a highly efficient ground heat exchanger as it relies on both conduction and advection heat transfer processes. Therefore, the interpretation of a thermal response test ...
Investigation of thermo-hydro-geochemical processes in a standing column well intersected by a fracture
(International Ground Source Heat Pump Association, 2017)
Local thermal and chemical conditions may favor minerals' scaling which can cause undesirable operational problems to standing column well systems. Precipitation may reduce heat exchange in the well and the heat exchanger ...
Near-instant g-function construction with artificial neural networks
(International Ground Source Heat Pump Association, 2018)
A g-function is a useful tool that simplifies the calculations of heat exchanges in a ground-coupled heat pump system. In this work, we show how an artificial neural network can be trained to construct a g-function with ...