Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Deep geothermal"”.
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Performance of Deep Geothermal Energy Systems
Geothermal energy is an important source of clean and renewable energy. This project deals with the study of deep geothermal power plants for the generation of electricity. The design involves the extraction of heat from the Earth and its conversion into electricity. This is performed by allowing …
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An Engineering Analysis Method for Deep Geothermal Energy
At present there are already many deep geothermal projects allowing us to have a better understanding of deep geothermal energy. However, there are still many issues to be solved for more reliable use of deep geothermal energy. This thesis proposes an engineering analysis method to assess the …
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Social identity processes involved in the acceptance and collective actions regarding large-scale energy technologies: The case of deep geothermal energy in Cornwall, Wales and Scotland.
Deep geothermal energy has been recognised as an important contributor to future energy demand. However, the development of renewable energy technologies has seen public disagreement hindering the implementation of such technologies. The present study investigated social dimensions underlying …
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Assessing Social Acceptance of Geothermal Systems in Western Canada: Evidence from Alberta and British Columbia
… have contrasting energy landscapes. Although geothermal systems are increasingly viewed as a promising low-carbon option, public perceptions remain poorly understood. This study examines the social acceptance of geoexchange, hydrothermal, and ultra-deep geothermal systems in Alberta and …
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Deep Energy Foundations: Geotechnical Challenges and Design Considerations
Traditionally, geothermal boreholes have utilized the ground energy for space heating and cooling. In this system, a circulation loop is placed in a small-diameter borehole typically extending to a depth of 200-300 ft. The hole is then backfilled with a mixture of sand, bentonite and/or cement. The …
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A Comparative Case Study of Enhanced Geothermal Systems: Interacting Imaginaries of Place and Energy in Renewable Energy Transitions
… renewable energy technology known as Enhanced Geothermal Systems (EGS) to examine how multi-scalar imaginaries of energy and place interact and compete within a local context to shape public negotiations of acceptability. Further, I examine how communication strategies that draw on place-based …
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Hot dry rock reservoir modelling
Geothermal energy reserves are significantly underdeveloped resources, and field experiments have shown the energy produced from this resource is clean and sustainable. Deep geothermal resources represent one form of geothermal energy, and the most widely used, in terms of commercial viability, are …
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CO₂ and Heat Release from Magmatic Hydrothermal Systems: Insights from CO₂ Flux and Other Modern Methods
… the relationship between these datasets and the deep geothermal reservoir, which provides the research gap and focus of this research. The goal of this thesis is to determine whether statistical analysis of CO2 flux and heat flux datasets can provide information on the deep reservoir; to extend …
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Propagation of fluid driven fractures in transversely isotropic material
… of unconventional reservoirs, development of deep geothermal systems) but also occurs naturally (magmatic dyke intrusion). While the mechanics of hydraulic fractures (HF) in isotropic media is well established, the impact of the anisotropy of natural rocks on HF propagation is still far from …
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Multiphysics algorithms for the simulation of geological materials under extreme conditions: the evolution and transport of ablated material
One of the biggest challenges to deep geothermal is the ability to drill sufficiently deep into very hot bedrock. The state of the art in conventional, mechanical drilling falls short at this task due to severe wearing effects. Millimetre wave (MMW) drilling is a non-contact technology that uses …
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Well-log based determination of rock thermal conductivity in the North German Basin
… maturation processes, but also for understanding geothermal conditions in a geological setting. In conjunction with the temperature gradient, thermal conductivity represents the basic input parameter for the determination of the heat-flow density; which, in turn, is applied as a major input …
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The geothermal potential of Luxembourg
The aim of this work is the evaluation of the geothermal potential of Luxembourg. The approach consists in a joint interpretation of different types of information necessary for a first rather qualitative assessment of deep geothermal reservoirs in Luxembourg and the adjoining regions in the …
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Mechanical properties and microcracking behaviour of heterogeneous rocks after high-temperature treatment
The construction of large-scale deep underground projects, such as deep geothermal energy exploitation and the geological disposal of high-level radioactive nuclear waste, plays a critical role in ensuring national energy security, optimizing resource utilization, and addressing environmental …