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 19 of 19 for “"Ground source heat pumps"”.
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Solar Colletors Combined with Ground-Source Heat Pumps in Dwellings - Analyses of System Performance
The use of ground-source heat pumps for heating buildings and domestic hot water in dwellings is increasing rapidly in Sweden. The heat pump extracts heat from the ground by a U-pipe in a vertical borehole. In order to reduce the electricity demand in the system, the combination with solar …
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The architectural impact of using ground-source heat pumps in commercial buildings in Las Vegas
… on the design and long term performance of ground-coupled heat pump systems over a fixed period of time. The results are applied to a commercial office building in order to assess the net impact of combining various energy efficiency strategies. The conclusion of the comprehensive study is …
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A comparison of ground source heat pumps and micro-combined heat and power as residential greenhouse gas reduction strategies
Both ground source heat pumps operating on electricity and micro-combined heat and power systems operating on fossil fuels offer potential for the reduction of green house gas emissions in comparison to the conventional approaches for providing heating, air conditioning and electric power to …
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The energy performance of the NOVTEC advanced house
… integrated home comfort system consisting of two ground source heat pumps, the NOVTEC Advanced House is one of the world's top energy performers. The implementation of a comprehensive monitoring plan which included the installation of over 100 sensors and an automated data acquisition system, …
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Building Energy Efficiency - Policy, learning and technology change
… Technologies include windows, insulation, heat pumps and passive houses. By using the lenses of innovation theory, the concept of learning, and transaction cost economics, this work analyses the outcome of various policy packages, the development of technologies and markets, and policies …
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The Effect of Geothermal Heat Pumps on Subsurface Flow and Contaminant Transport
Geothermal or ground source heat pumps (GSHPs) are among the growing renewable energy technologies used for heating and cooling of buildings. However, little work has been done to investigate their geo-environmental effects within the subsurface. This research uses FEFLOW software, to simulate heat …
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Geothermal Systems Performance and Environmental Impacts
The use of fossil fuels for heating and cooling purposes is plagued by problems including environmental impacts, unsustainable production, and increased greenhouse gas production. This had led to a worldwide interest in developing sustainable sources of energy. One such energy is ground source heat …
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Critical Water, Wastewater, and Thermal Infrastructure Development for a Resilient Neighborhood in War-Affected Ukraine
… potential, and identifies optimal water source locations within 30 km using the DRASTIC methodology combined with geospatial analysis. For wastewater infrastructure, the study estimated wastewater generation, analyzed different wastewater treatment options, and used a decision matrix to …
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An investigation into the performance of a very shallow borehole thermal energy store for a solar-assisted ground source heat pump
Ground-source heat pumps (GSHP) have been used in building applications to meet heating needs at lower energy costs. Likewise, solar thermal systems have been integrated into conventional GSHP to reduce the size of the ground heat exchanger and provide seasonal heat storage. So far, this technology …
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Numerical Analysis of Thermal Behavior and Fluid Flow in Geothermal Energy Piles
Geothermal heat exchangers are a growing energy technology that improve the energy efficiency of heating and cooling systems in buildings. Vertical borehole heat exchangers (BHE) coupled with ground source heat pumps have been widely developed and researched in the past century. The major …
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Analysis of alternative energy options for buildings
… must change their attitude toward the use of resources, and in particular, be conscientious about energy consumption. Next, renewable energy promises a suitable alternative to energy needs in this century, and the best means to overcome the environmental issue and energy crisis is discussed. The …
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Urban carbon and energy analysis: calculation of energy flows and emissions from residential housing clusters and assessment of sustainable energy options
… of this work is to form and examine various heat and electricity supply scenarios at the street-level and identify which of these scenarios offer the most potential to reduce consumption of resources and carbon dioxide emissions. The path to realisation of a reduction in carbon emissions from …
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Strategic Roadmapping and Technology Portfolio Selection for Heating Decarbonization in Canada
Heating systems contribute significantly to Canada’s greenhouse gas emissions, accounting for approximately 117 megatons of CO₂ equivalent. demanding urgent decarbonization to meet national climate targets. This thesis employs the Advanced Technology Roadmap Architecture framework, integrating …
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Long-term ground response For borehole heat exchangers in clay
The use of ground source heat pumps to transfer heat to and from the ground via borehole heat exchangers is among the most energy efficient techniques for space heating and cooling. Designs for seasonal heat exchange systems are becoming increasingly popular in urban environments to reduce energy …
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Assessing the potential of heat pumps to reduce energy-related carbon emissions from UK housing in a changing climate
… of development and analysis of residential heat pump energy use: firstly, the analysis of heat pump performance data from a monitoring study of ground source heat pumps; secondly, the definition and development of a generalised residential heat pump energy model embedded within an enhanced …
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Modelling and Experimental Characterization of Solar-Assisted Ground Source Heat Pump Systems with and without Thermal Energy Storage for Cold Climates
… of low energy technologies for building heating and cooling. Among the efficient energy technologies and systems developed to enhance efficiency and reduce building carbon footprint, the use of ground source heat pumps (GSHPs) is gaining traction as a cost-competitive, reliable, and …
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Energy Efficient Passenger Comfort in Underground Subway Environments
Underground subway systems provide an efficient high capacity public transportation method for commuters within dense urban areas. Passengers using underground subway systems are subjected to enclosed and crowded environments that must be controlled to maintain tolerable temperatures and …
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Improving Health and Safety at Surface and Underground Mines by Implementing Emerging Technologies Coupled With Geotechnical and Climatic Modeling
… part of any mining operation - surface or underground. When deficiencies are identified, they usually lie with the factors that contribute to unsafe and unhealthy working conditions. The health and safety focus for modern underground mines involves improving the subsurface thermal climate …