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Now showing items 1-10 of 33
Ground heat exchanger design tool with rowwise placement of boreholes
(International Ground Source Heat Pump Association, 2022)
Simulation-based design tools have been used since the late 1980s for designing ground heat exchangers (GHE) used with ground source heat pump (GSHP) systems. The ground heat exchanger simulations used in these tools rely ...
Potential mapping of ground source heat pump systems considering groundwater pumping
(International Ground Source Heat Pump Association, 2022)
The pumping of groundwater near GHEs improves the performance of GSHP systems due to the advection of the induced roundwater flow when the hydraulic conductivity of the formation is favorable. To quantify the effect, we ...
pygfunction 2.2 : New features and improvements in accuracy and computational efficiency
(International Ground Source Heat Pump Association, 2022)
Recent improvements to pygfunction, an open-source tool for the calculation of ??-functions, are presented. The latest version 2.2 enables the calculation of ??-functions for fields containing inclined boreholes. Various ...
Development of a web-based screening tool for ground source heat pump applications
(International Ground Source Heat Pump Association, 2022)
Ground source heat pump (GSHP) technology has great potential to help the nation meet its energy and decarbonization goals, but several barriers hinder the wide application of GSHP. Important barriers include the lack of ...
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 ...
Influence of buildings on geothermal boreholes – a comparison between two models
(International Ground Source Heat Pump Association, 2022)
The spread of ground source heat pumps has led to the development of several models to estimate the thermal interference between independent geothermal boreholes in densely populated areas. Some of these models take into ...
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 ...
Economic optimization and parametric analysis of large hybrid ground source heat pump systems: A case study
(International Ground Source Heat Pump Association, 2022)
Hybrid ground source heat pump systems offer a solution to reduce initial costs and make systems more economically viable. Their design is however complex and their financial profitability difficult to establish. The design ...
Field tests and numerical simulation of a novel thermal response test equipment for water wells
(International Ground Source Heat Pump Association, 2022)
The objective of this study is to develop a novel thermal response test (TRT) equipment that can be applied to existing water wells instead of borehole heat exchangers (BHEs). Accordingly, field tests were conducted using ...