Characterization of a novel in-ground heat exchanger for applications in sustainable building energy and maintaining permafrost
This thesis investigates the use of a Helical Steel Pile (HSP), as an in-ground heat exchanger for a Ground-Source Heat Pump (GSHP) system. A multi-layered soil conductivity dataset was created to quantify thermal performance across a variety of climate and soil conditions. Geometric features of the...
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Format: | Thesis |
Language: | unknown |
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2022
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Online Access: | https://doi.org/10.32920/19852672.v1 https://figshare.com/articles/thesis/Characterization_of_a_novel_in-ground_heat_exchanger_for_applications_in_sustainable_building_energy_and_maintaining_permafrost/19852672 |
Summary: | This thesis investigates the use of a Helical Steel Pile (HSP), as an in-ground heat exchanger for a Ground-Source Heat Pump (GSHP) system. A multi-layered soil conductivity dataset was created to quantify thermal performance across a variety of climate and soil conditions. Geometric features of the HSP were optimized using parametric sweeps, and the capacity of the pile to supply a building load was characterized for a variety of inlet fluid temperatures, seasons, and locations. Transient simulations of the pile characterized its ability to supply three different types of building load sets across a year. Finally, 40-year simulations showed the potential for the HSP to provide heating to buildings in a northern region while also mitigating the thawing of permafrost from climate change. The results indicate a potential to provide sustainable thermal energy to remote communities while delaying the predicted thawing of permafrost locally by up to 75 years. |
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