Browsing OSU - IGSHPA Papers by Title
Now showing items 118-126 of 126
-
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 ... -
Underground thermal energy storage in subarctic climates: A feasibility study conducted in Kuujjuaq (QC, Canada)
(International Ground Source Heat Pump Association, 2018)Underground thermal energy storage can provide space and water heating and has been used in temperate climates so far. A step forward is to evaluate the efficiency and viability in arctic to subarctic environments, where ... -
Understanding transient heat transfer in large-scale ground heat exchanger (GHE) matrices: Insights from high-resolution analytical solutions
(International Ground Source Heat Pump Association, 2018)This paper reports on a set of high-resolution analytical solutions, which combines a composite-medium line-source solution, the conventional finite and infinite line-source solutions, and a quasi-3D model for fluid inside ... -
Updated assessment of the technical potential of geothermal heat pump applications in the United States
(International Ground Source Heat Pump Association, 2017)This paper presents an updated assessment of the technical potential of applying geothermal heat pump (GHP) systems in businesses and homes of the United States. The assessed technical potential includes energy savings, ... -
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 ... -
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 ... -
Vertical hydraulic conductivity of borehole heat exchanger systems before and after freeze-thaw cycle stress
(International Ground Source Heat Pump Association, 2018)Quality assurance is a very important aspect in the planning, implementation and operation of borehole heat exchangers (BHE). Within the research project Quality Assurance for Borehole Heat Exchangers (QEWS) the hydraulic ... -
Video inspection of wells in open loop ground source heat pump systems in Norway
(International Ground Source Heat Pump Association, 2018)This paper presents results from video inspections of groundwater wells in Melhus and Elverum, in Norway. The method has identified iron hydroxides, bacterial growth and sand production as causes of clogging in different ... -
Virtual borehole for thermal response test unit calibration: Test facility and concept development
(International Ground Source Heat Pump Association, 2018)Precise calculation of the borehole length requires good estimation of the ground thermal conductivity. In practice, the ground thermal conductivity is measured in-situ at a specific location using what is referred to as ...