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.
Results
Showing 1 to 20 of 98 for “"Emissions Reductions"”.
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Quantifying emissions reductions from New England offshore wind energy resources
… the impact of renewable energy resources on air emissions from fossil fuel power plants is important to governments aiming to improve air quality and reduce greenhouse gases at least cost. It is also important to renewable energy developers seeking to gather support and facilitate permitting of …
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Estimating the environmental benefits of aviation fuel and emissions reductions
… CO₂ and non-CO₂ co-benefits of aviation fuel and emissions reductions. The approach is based on two main pieces, both of which are derived using the Aviation environmental Portfolio Management Tool (APMT). First, the air quality marginal damage cost of a unit of fuel is estimated using an air …
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Aircraft emissions reductions through improved operational performance : challenges, opportunities and policy implications
Aircraft are a significant source of emissions whose impact on local air quality and global climate change is expected to increase as the aviation industry continues to grow. Operational improvements are an attractive alternative for emissions reductions, because in addition to the environmental …
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Tradeoffs between revenue enhancements and emissions reductions with energy storage-coupled photovoltaics
… using photovoltaics and the associated emissions reductions. This thesis attempts to quantify the impacts of adding energy storage to photovoltaics. The thesis formulates an optimization problem to solve for the optimal use of photovoltaics with energy storage from 2000 to 2005 in New …
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Potentially available natural gas combined cycle capacity : opportunities for substantial CO₂ emissions reductions
Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, 2010.
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Human Health Risk Assessment for Petroleum Refining Industry of the Remaining Air Toxics after MACT I Emissions Reductions
… included compiling vertical and fugitive emissions from 2002 National Emissions Inventory for sources inside two facilities in Louisiana, 'Motiva Norco' and 'Valero St. Charles' refineries. Six cases were modeled applying EPA criteria, where cancer risks are 'low' if the probability is. …
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What Role Can CEQA Play in Reaching GHG Emissions Reductions Goals Set Forth in AB 32 – An Analysis of CEQA, AB 32, and Recommendations for CEQA Reform
… mechanisms, including greenhouse gas (GHG) emissions reduction. AB 32 established a statewide GHG emissions goal, which requires California to decrease its GHG emissions to 1990 levels by 2020. The California Environmental Quality Act (CEQA) is an environmental assessment law adopted in 1970 …
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The Net Climate Impact of AI: Balancing Current Costs with Future Climate Benefits
… to quantify both the Greenhouse Gas (GHG) emissions and the climate change costs and benefits of AI systems, addressing the time value of carbon and the installed base of existing AI infrastructure. We examine the energy demands of AI, which are growing rapidly and threatening companies' …
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The influence of the Paris Agreement on mitigation actions toward the reduction of greenhouse gas emissions post 2015: A comparative study of Nordic, Asian and African regions
… disaster that will occur with continued emissions. Since the signing of the Paris Agreement in 2015, countries are encouraged to substantially reduce their greenhouse gas (GHG) emissions to limit the global temperature increase to 2⁰C and pursue efforts to limit global temperatures to …
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The Role of Natural Gas in Future Low-carbon Energy Systems
… through mid-century. Sensitivities include CO2 emissions limits, technology costs, nuclear plant lifetime extensions, and NG deployment and financing schemes which aim to minimize stranded costs. We find that investments in NG are made across all scenarios evaluated, as well as unprecedented …
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Sensitivity of inorganic aerosol impacts to US precursor emissions
… atmospheric aerosol impacts and their precursor emissions from the United States of America. The inorganic aerosol ions nitrate (NO--₃), sulfate (SO²-- 4 ), and ammonium (NH+4 ) form from emissions of nitrogen oxides (NOx), sulfur dioxide (SO₂), and ammonia (NH₃). Emissions of NOx and SO₂ in the …
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An investigation of the potential for and application of life cycle analysis in the pharmaceutical industry
… 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 emissions reductions in …
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A Techno-Economic Investigation of Advanced Vehicle Technologies and Their Impacts on Fuel Economy, Emissions, and the Future Fleet
… vehicle technologies that contribute to fuel and emissions reductions while preserving consumer choice, and to evaluate their technological performance and economic practicability as essential aspects of meeting aspirational targets and regulatory requirements associated with the future vehicle …
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Greenhouse gas life cycle assessment of canola-derived HEFA biojet fuel in Western Canada
… option for reducing greenhouse gas (GHG) emissions from the aviation industry. In the near term, biojet fuel is most likely to be produced via the hydroprocessed esters and fatty acids (HEFA) pathway. Canola is one of the most readily available feedstocks for HEFA fuel production in …
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Development of novel alternative chemistry processes for dielectric etch applications
… manufacture that account for the largest use and emissions of PFCs are the patterning of dielectric films and the cleaning of dielectric film plasma enhanced chemical vapor deposition (PECVD) chambers. The work discussed in the author's Ph.D. thesis was conducted as part of a project whose goal is …
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The effects of drive cycle accessory load and degree of hybridization on fuel economy and emissions for hybrid electric buses
… fuel consumption but can also decrease tailpipe emissions. In this thesis, the software package Powertrain Systems Analysis Toolkit (PSAT) was chosen as the simulation tool to model several bus powertrain configurations - conventional, three different degrees of hybridization parallel hybrid …
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Aqueous reactivity of glassy industrial byproducts in alternative cementitious systems
… with ordinary Portland cement (OPC). CO₂ emissions inherent to source-material processing (i.e., firing of limestone at 1450 °C) and annual OPC production volumes of 4.1 billion metric tons cause an estimated 5-11% of global annual greenhouse gas (GHG) emissions. Material substitution with …
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Modeling aviation's global emissions, uncertainty analysis, and applications to policy
(cont.) fuel burn results below 3000 ft. For emissions, the emissions indices were the most influential uncertainties for the variance in model outputs. By employing the model, this thesis examined three policy options for mitigating aviation emissions. More stringent engine certification …
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Assessing Greenhouse Gas Emissions Mitigation Potential through the use of Forest Bioenergy
… opportunities to reduce greenhouse gas (GHG) emissions associated with fossil fuel use, reduce non-renewable energy consumption, and provide investment and employment in the forestry sector. These opportunities, however, must be considered within the broader contexts of forest systems. Of …
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Assessment of Decarbonization Pathways of Japan
… combine domestic mitigation measures such as emissions targets from the updated Japan’s Nationally Determined Contribution (NDC), power mix goals, and availability of carbon capture and storage (CCS) with international emissions trading. The impacts on CO₂ emissions, GDP, consumption, carbon …
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