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 31 for “"CO2e"”.
-
Evaluation of the Greenhouse Gas Emissions of Oil Sands Upgrading Technologies Using a Novel Life Cycle-based Model
… per megajoule of synthetic crude oil (g CO2e/MJ SCO) and range is 6.3–11.2 g CO2e/MJ SCO. HC’s baseline intensity is 10.8 g CO2e/MJ SCO (range: 8.6-14.3 g CO2e/MJ SCO) and HC/FC’s is 12.2 g CO2e/MJ SCO (range: 9.7-14.8 g CO2e/MJ SCO). The baseline, low and high scenario GHG intensities …
-
COMET-farm use cases: GHG emission estimates from climate- smart practices and platform enhancement opportunities
… to reduce GHG emissions by a maximum of 4.15 Mg CO2e ha-1yr-1 in UIUC’s evaluated scenarios and by 8.03 Mg CO2e ha-1yr-1 in Martin’s evaluated scenarios. UIUC’s South Farms BAU was calculated to be a net source of 0.29 Mg CO2e ha-1yr-1 by COMET-Farm, with evaluated scenarios ranging from a …
-
Life Cycle Analysis of Greenhouse Gas Emissions from the Mining and Milling of Uranium in Saskatchewan
… GHG emissions intensity is estimated as 45 kg CO2e/kg U3O8 at an average ore grade of 9.12% U3O8 based on relative U3O8 production volumes at Mine-Mill A, B, and C from 2006 to 2010. The 95% confidence interval for the production-weighted average result ranges from 42 to 49 kg CO2e/kg U3O8, …
-
Carbon Accounting in the Arboriculture Industry; Reduction of Greenhouse Gas Emissions from Tree Surgery
… (DTE) based in Sevenoaks, Kent. The structure of CO2e (carbon dioxide equivalent) quantification methods followed the top-down approach - BS ISO 14064:2006; using secondary data to measure CO2e emissions and primary data for assessment of daily activity optimisation. The results, based on project …
-
Scenario based lifecycle analysis of greenhouse gas emissions from petroleum-derived transportation fuels in 2050
… the year 2050 are calculated to be 14.3 - 19.2 g CO2e/MJ for jet fuel, 17.2 - 24.9 g CO2e/MJ for diesel, and 21.1 - 26.8 g CO2e/MJ for gasoline. The production emissions in 2050 could deviate from 2020 values by as much as +20% to -21%, depending on future policy choices. If these production …
-
Estimation of net carbon sequestration potential of citrus under different management systems using the life cycle approach
… sequestration in biomass ranged from 23.99 Mg CO2e/ha for young trees to 109 Mg CO2e/ha for mature trees. The carbon emissions from fertilizer, pesticides, water, electricity and fuels production, delivery and use was estimated to range from 0.22 Mg CO2e/ha for low input orchards to 4.28 Mg …
-
Estimation of net carbon sequestration potential of citrus under different management systems using the life cycle approach
… sequestration in biomass ranged from 23.99 Mg CO2e/ha for young trees to 109 Mg CO2e/ha for mature trees. The carbon emissions from fertilizer, pesticides, water, electricity and fuels production, delivery and use was estimated to range from 0.22 Mg CO2e/ha for low input orchards to 4.28 Mg …
-
Physical chemical processes and environmental impacts associated with home composting
… composting were estimated as between 3 and 12 Kg CO2E/Tw with almost 90% coming from the lifecycle of the compost bin. This compares with between 20 and 56 Kg CO2E/Tw from centralised facilities, at least more than double that for home composting. Total anthropogenic CO2-equivalent emissions from …
-
Life Cycle Optimization of a Zero Carbon Building for CO2e, Energy, and Cost Using Stochastic Controls for an Energy System Integrating a Heat Pump, Solar Air Wall, PV, and a Smart Grid-integrated Thermal Storage (SGTS) Hydronic Battery
The life cycle optimization (LCO) of zero carbon buildings (ZC) was examined, using a laneway house built with photovoltaic and solar air wall (SAW) renewable energy collection, air-to-water heat pump, smart grid-integrated thermal storage (SGTS) hydronic battery with an internet-connected …
-
Economic and Environmental Assessment of an Integrated Carbon Capture and Utilization Pathway
… acid production would reduce ~721 thousand ton CO2e/year) relative to CCS route. Under optimistic scenario, while all the CO2 derived products are economically compelling over CCS route, only formic acid production would reduce ~1465 thousand ton CO2e/year over CCS (~575 thousand ton CO2e/year). …
-
Carbon intensive but decarbonising quickly? Retrospective and prospective life cycle assessments of South African pome fruit
… since 2000 which correlates to the declining CO2e emissions in the boundaries and value chain of South African pome fruit. The carbon intensity and efficiency of the pome fruit value chain is also determined for each year using the kg CO2e per kg fruit and the industry revenue for a specific …
-
Energy, environment, and sustainability: a hierarchical analysis of south Louisiana
… in per capita GHG emissions of 6.1 Metric Tons CO2e, which is low compared to many other universities. Chapter 4 estimates the carbon storage of two bottomland hardwood forests located in the Lower Mississippi Alluvial Valley. Carbon storage varied with microtopography. Carbon storage was …
-
Quantifying the environmental impacts of selected sustainable transportation policies
… to reduce annual carbon dioxide equivalent (CO2e) in the District of Columbia, by 4.5%, followed by Hawaii and New York, and New Jersey. The smallest potential is found in North Dakota. Nationally, 1.83 MMT of CO2e or 0.16% of light duty vehicle emissions would be reduced under this scenario …
-
Clean heat at what cost? Economic optimization of residential space heating in Massachusetts
… of space heating could reduce building CO2e emissions in Massachusetts by 25-35% under current grid carbon intensities.
-
Nuclear Microreactor-Powered Container Ships for Maritime Decarbonization
… eliminating nearly 44 million metric tons of CO2e emissions across a ten-ship fleet. Sensitivity analyses confirm the robustness of these results across a wide range of future scenarios. By integrating stakeholder analysis, technical feasibility assessments, and economic modeling, this …
-
Minimizing embodied carbon in multi-material structural optimization of planar trusses
… embodied carbon coefficient (kg[subscript CO2e]/kg[subscript material]) and density are lower than that of steel, its much lower strength means that it may not always result in the least-emitting structural design. As a result, the choice of the more sustainable material for any given …
-
Sustainability Analytics - Lowering Emissions With Operational Efficiency
… electricity demand and consequent lowering of CO2e emissions by 22,832 tons, underpinning the potential of such optimization strategies to harmonize the pursuit of operational excellence with environmental stewardship. Through the lens of decommissioning underutilized legacy equipment, this …
-
Improving the Environmental and Economic Sustainability of Dairy Farming using Value-Added Products derived from the Anaerobic Digestion of Manure
… direct manure methane emissions of 2,436 tonnes CO2e per year.
-
From Liquid to Stone: Reimagining the design of concrete structures for reuse
… concrete was responsible for up to 9% of global CO2e emissions, and our dependence on concrete is only expected to rise over the next 50 years. Concrete’s ubiquity is reinforced by its liquidity; it is simultaneously invisible and ever-present, undergirding global modernization through its cheap, …
-
Autoclaved Aerated Concrete Tile Vaults for Lightweight Floor Systems
… embodied carbon of a structure, the emissions of CO2e associated with material consumption, is directly proportional to the weight of material. With the demand for new construction on the rise, the urgency for more sustainable buildings necessitates more efficient use of material to reduce the …
Page 1 of 2