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 16 of 16 for “"life cycle emissions"”.
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Site Characterization, Sustainability Evaluation and Life Cycle Emissions Assessment of Underground Coal Gasification
… potential for reduction in greenhouse gas (GHG) emissions. The findings indicate that UCG significantly reduces GHG emissions compared to other competitive coal exploiting technologies. A model to compute the life cycle greenhouse emissions of UCG has been developed, and it reveals that UCG has …
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Sustainable P2 design for batch-based specialty chemical manufacture
… operating costs were reduced by 83% and total life cycle emissions were reduced by 44%, due to reduction in virgin NMP use and hazardous waste disposal. With capital acquisition, the recovery option would still result in a net present value (NPV) at 10 years of $3,120,000. The reduction in life …
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Greenhouse Gas Emissions from Natural Gas Development in Western Canada: A Gap Analysis
The greenhouse gas (GHG) emissions of conventional and unconventional natural gas are primarily methane and carbon dioxide that are released in natural gas development activities. Addressing these emissions have gained attention because of recent climate commitments. Life Cycle Assessment (LCA) can …
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An investigation of the potential for and application of life cycle analysis in the pharmaceutical industry
Life cycle assessment offers a unique opportunity to analyze emission reductions across all manufacturing sectors. However, few efforts have been made to apply this method to the pharmaceutical industry. The Toxic Release Inventory is a powerful tool to determine areas of high potential for …
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Life cycle assessment of dewatering routes for algae-derived biodiesel processes
… of algae derived biodiesel. An analysis of the life cycle emissions associated with harvesting, dewatering, extraction, reaction, and product purification stages for algae biodiesel was performed. This "base case" found 10,500 kg of total emissions per t BD with 96% of those attributed to the …
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Development of a model to investigate the sustainability of Ontario’s future electricity supply through a dual life cycle lens
Since the turn of the century, greenhouse gas emissions and their climate related impacts have been studied with increased vigor. A tool that has gained popularity in supporting the reduction of emissions is life cycle assessment (LCA). This thesis proposes looking forward to using life cycle …
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Life cycle assessment of greenhouse gas emissions and non-CO₂ combustion effects from alternative jet fuels
… thesis focuses specifically on assessing the life cycle greenhouse gas (GHG) emissions and non-CO 2 combustion effects from conventional jet fuel and synthetic paraffinic kerosene (SPK). The research expands upon the work of Wong (2008) by examining Fischer-Tropsch jet fuel from coal and …
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Cost Optimization of US Sustainable Aviation Fuel Supply Chain Under Different Policy Constraints
This thesis quantifies the costs and emissions of a potential sustainable aviation fuel supply chain in the US in 2035 while incorporating regional uncertainty analysis. Feedstock availability is quantified using projected arable land availability, agricultural yields, and projected waste and …
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Climate Impact Analysis of Direct Air Capture Deployment
Direct air capture (DAC) is a negative emissions technology (NET) that can contribute to mitigating climate change impacts by extracting CO₂ from the atmosphere. Given its low technical maturity, uncertainties persist regarding DAC's cost, scalability, and life-cycle emissions. In this analysis I …
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Assessing the Intersectional Risks Associated with the Full Life Cycle of the U.S. Housing Stock
… efforts to reduce societal greenhouse gas (GHG) emissions. To study these decisions, a computation inexpensive method is developed to compute expected damages associated with each individual building in a community with hurricane wind exposure. This method is applied to study the cost burden of …
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An investigation of the energy and environmental sustainability impact of affordable net-zero energy house in South Africa
… One Click LCA and the Edge App to estimate the life cycle carbon emissions of an affordable net-zero energy house. The findings indicate that affordable net-zero energy housing can substantially reduce both operational and embodied carbon emissions. By integrating conventional building practices …
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Estimating life cycle carbon emissions of the global oil supply chain at a high-resolution using optimization in a network model
… aggressive decarbonization across the entire life cycle. With the evolving energy mix, the oil industry is in a phase of adaptation. At present, petroleum fuels account for a third of the global primary energy supply. Future forecasts range across a spectrum from plateauing to decreasing …
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Low carbon pathways for structural design : embodied life cycle impacts of building structures
Whole life cycle emissions of buildings include not only operational carbon due to their use phase, but also embodied carbon due to the rest of their life cycle: material extraction, transport to the site, construction, and demolition. With ongoing population growth and increasing urbanization, …
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Accounting for Variability and Uncertainty in Life Cycle Assessments: Oil Sands Case Studies
Along the life cycle of oil sands-derived products, variability in terms of resource heterogeneity, operating decisions, as well as extraction and processing technologies affect a project’s GHG intensity. Previous LCAs that have quantified emissions from bitumen production and processing have not …
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Life cycle air pollutant and carbon emissions from China’s road transport under vehicle electrification and renewable electricity expansion scenarios
… to both air pollution and greenhouse gas emissions. As the country transitions toward carbon neutrality, vehicle electrification and renewable electricity (RE) expansion are central to national strategies for mitigating climate and environmental impacts. However, most existing assessments …
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Life-cycle Greenhouse Gas Emissions and Water Footprint of Residential Waste Collection and Management Systems
… affect RCC efficiency, greenhouse gas (GHG) emissions, and cost. Second, the neglected impact of MSW management practices on water resources. Third, the implications of alternative fuels on the environmental and financial performance of waste collection where fuel plays a significant rule. …