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Now showing items 41-50 of 126
Full-scale model to predict borehole fluid temperature with groundwater advection
(International Ground Source Heat Pump Association, 2018)
Ground source heat pump (GSHP) system is one of the major techniques that utilize shallow geothermal energy and borehole heat exchangers (BHEs) is the key component in GSHP system. Although most proposed analytical models ...
Novel tool and guidelines for ground source heat pumps in densely populated areas: a Swedish project
(International Ground Source Heat Pump Association, 2022)
With one system installed for every twenty inhabitants, Sweden is by far the country with the highest penetration of Ground Source Heat Pumps (GSHPs). Unsurprisingly, it has initiated a project to support designers and ...
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) ...
Vertical GSHP systems in Sweden 1978-2015 - A survey based on the Swedish Well Database
(International Ground Source Heat Pump Association, 2017)
The Geological Survey of Sweden (SGU) is the Swedish government agency responsible for groundwater, geological and mineral management in Sweden. SGU provides open access geological data on rock, soil and groundwater ...
Preliminary research for eight possible groundwater energy utilisation sites in Southern Finland
(International Ground Source Heat Pump Association, 2018)
Groundwater energy utilisation has not been widely regognised as a significant renewable energy source for industry in Finland. This investigation provides example of cost-effective study to map groundwater energy utilisation ...
First measurements of a monitoring project on a BTES system
(International Ground Source Heat Pump Association, 2017)
Performance of Borehole Thermal Energy Storage (BTES) systems depends on the temperature of the secondary fluid, circulating through the ground-loop heat exchangers. Borehole systems are therefore designed in order to ...
Impacts of prospective LEED building's energy loads on a borehole heat exchanger: A case study in Central Illinois
(International Ground Source Heat Pump Association, 2022)
Assessing the thermal behavior in the subsurface surroundings of a borehole heat exchanger (BHE) is necessary for evaluating the performance of GSHP systems. In this study we undertook a preliminary thermal analysis on a ...
Experimental performance analysis of a dual source heat pump integrated with thermal energy storage
(International Ground Source Heat Pump Association, 2022)
To mitigate disturbances to the electric grid resulting from the growing penetration of intermittent and decentralized renewable generation, a dual-source (air source and ground source) heat pump (DSHP) integrated with ...
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 ...
Investigation on the effects of different time resolutions in the design and simulation of BHE fields
(International Ground Source Heat Pump Association, 2017)
The correct design of a field of Borehole Heat Exch angers (BHE) requires the knowledge of ground thermal properties, heat pump performance and building heating and cooling demand. The sequence o f heat pulses from (to) ...