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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 ...
Assessment of effective borehole thermal resistance from operational data
(International Ground Source Heat Pump Association, 2017)
Ground source heat pump (GSHP) systems use the ground as a source of sustainable thermal energy for heating and cooling of buildings. Efficient design of the ground heat exchangers (GHEs) for these systems is important so ...
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 ...
Influence of different ground thermal properties in a borehole heat exchanger's performance using the B2G dynamic model
(International Ground Source Heat Pump Association, 2017)
Ground source heat pump (GSHP) systems for heating and cooling represent an efficient alternative to conventional air source heat pump systems, always provided that they present an efficient design and operation. In this ...
Optimal control and operation of a GSHP system for heating and cooling in an office building
(International Ground Source Heat Pump Association, 2017)
Ground source heat pump (GSHP) systems are widely considered as being among the most efficient heating and cooling renewable technologies currently available. Nevertheless, both an optimal design of components and an optimal ...
Geothermal storage integration into supermarket's CO2 refrigeration system
(International Ground Source Heat Pump Association, 2018)
This paper investigates the integration of geothermal storage into the state-of-the-art CO2 trans-critical booster systems. The objective is to evaluate the impact on energy efficiency of this integration. Three scenarios ...
Experimental setup to measure the heat-exchange processes by controlling thermal and hydraulic conditions
(International Ground Source Heat Pump Association, 2018)
The design of a Borehole Heat Exchanger (BHE) is based on the evaluation of the thermal exchange capacity of the whole system constituted by the probes and the surrounding ground. The energy performance of a BHE mainly ...
Thermal analysis models of deep borehole heat exchangers
(International Ground Source Heat Pump Association, 2018)
With the advantages of much less land demand and higher temperature available, the deep borehole heat exchanger (DBHE) gets down to a depth of 1000-3000 m below the ground surface, and provides a new variance of ground-coupled ...
Alternate approach to the calculation of thermal response factors for vertical borehole ground heat exchanger arrays using an incomplete bessel function
(International Ground Source Heat Pump Association, 2017)
This article presents yet another methodology for the calculation of dimensionless thermal response factors for vertical borehole ground heat exchanger (GHX) arrays, which is a concept introduced by Eskilson (1987). The ...
Upgrade of the B2G dynamic geothermal heat exchanger model: Optimal location of the ground nodes
(International Ground Source Heat Pump Association, 2018)
In order to optimize the design and operation of a ground source heat pump system, the modeling of the Borehole Heat Exchanger (BHE) and its coupling to the heat pump operation becomes crucial. This becomes key for those ...