Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems

This paper investigates the total environmental impacts of a thermal caisson (TC) system by implementing a life cycle assessment methodology. The total environmental impacts consider the comprehensive effect on the environment across two life cycle stages: manufacturing and operation. A comparison b...

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Main Authors: Pouria Abbasi, Masih Alavy, Pavel Belansky, Marc A. Rosen
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Resources
Subjects:
Online Access:https://www.mdpi.com/2079-9276/13/3/45
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author Pouria Abbasi
Masih Alavy
Pavel Belansky
Marc A. Rosen
author_facet Pouria Abbasi
Masih Alavy
Pavel Belansky
Marc A. Rosen
author_sort Pouria Abbasi
collection DOAJ
description This paper investigates the total environmental impacts of a thermal caisson (TC) system by implementing a life cycle assessment methodology. The total environmental impacts consider the comprehensive effect on the environment across two life cycle stages: manufacturing and operation. A comparison between the TC results and two different HVAC systems, including air-conditioning/furnace and conventional ground-source heat pump (GSHP) systems, was made by adopting the ReCiPe 2016 methodology. This study reveals that the operation phase is the predominant contributor to environmental impacts across systems, mainly due to its extended duration. Specifically, the operational impacts of GSHPs are substantial, accounting for approximately 87% of total environmental impacts. A TC GSHP system demonstrates a notable environmental advantage, achieving a 79% reduction in total environmental impact when compared to traditional AC/furnace systems. This represents a 21% improvement over conventional GSHP systems. Despite this substantial reduction in total environmental impact, the TC GSHP system shows an almost 5% increase in the resource availability damage category relative to the conventional GSHP, which is attributed to its higher material consumption. These results highlight the TC GSHP system’s superior efficiency in reducing environmental impacts and its potential as a more sustainable alternative in residential heating and cooling applications.
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spelling doaj.art-1ec674d7767f465092c82b8033af4ccd2024-03-27T14:03:02ZengMDPI AGResources2079-92762024-03-011334510.3390/resources13030045Assessment of Environmental Impacts of Thermal Caisson Geothermal SystemsPouria Abbasi0Masih Alavy1Pavel Belansky2Marc A. Rosen3Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, CanadaDepartment of Mechanical and Manufacturing Engineering, Ontario Tech University, Oshawa, ON L1G 0C5, CanadaCapture Technologies Corporation, Caledon, ON L7C 0B3, CanadaDepartment of Mechanical and Manufacturing Engineering, Ontario Tech University, Oshawa, ON L1G 0C5, CanadaThis paper investigates the total environmental impacts of a thermal caisson (TC) system by implementing a life cycle assessment methodology. The total environmental impacts consider the comprehensive effect on the environment across two life cycle stages: manufacturing and operation. A comparison between the TC results and two different HVAC systems, including air-conditioning/furnace and conventional ground-source heat pump (GSHP) systems, was made by adopting the ReCiPe 2016 methodology. This study reveals that the operation phase is the predominant contributor to environmental impacts across systems, mainly due to its extended duration. Specifically, the operational impacts of GSHPs are substantial, accounting for approximately 87% of total environmental impacts. A TC GSHP system demonstrates a notable environmental advantage, achieving a 79% reduction in total environmental impact when compared to traditional AC/furnace systems. This represents a 21% improvement over conventional GSHP systems. Despite this substantial reduction in total environmental impact, the TC GSHP system shows an almost 5% increase in the resource availability damage category relative to the conventional GSHP, which is attributed to its higher material consumption. These results highlight the TC GSHP system’s superior efficiency in reducing environmental impacts and its potential as a more sustainable alternative in residential heating and cooling applications.https://www.mdpi.com/2079-9276/13/3/45thermal caissonground source heat pumplife cycle assessment (LCA)environmental impactphase change material (PCM)ground heat exchanger
spellingShingle Pouria Abbasi
Masih Alavy
Pavel Belansky
Marc A. Rosen
Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems
Resources
thermal caisson
ground source heat pump
life cycle assessment (LCA)
environmental impact
phase change material (PCM)
ground heat exchanger
title Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems
title_full Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems
title_fullStr Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems
title_full_unstemmed Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems
title_short Assessment of Environmental Impacts of Thermal Caisson Geothermal Systems
title_sort assessment of environmental impacts of thermal caisson geothermal systems
topic thermal caisson
ground source heat pump
life cycle assessment (LCA)
environmental impact
phase change material (PCM)
ground heat exchanger
url https://www.mdpi.com/2079-9276/13/3/45
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AT masihalavy assessmentofenvironmentalimpactsofthermalcaissongeothermalsystems
AT pavelbelansky assessmentofenvironmentalimpactsofthermalcaissongeothermalsystems
AT marcarosen assessmentofenvironmentalimpactsofthermalcaissongeothermalsystems