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Articles 3901 - 3930 of 5623
Full-Text Articles in Oil, Gas, and Energy
Synthesis And In-Situ Charactorization Of Energy Storage Material, Lixin Wang
Synthesis And In-Situ Charactorization Of Energy Storage Material, Lixin Wang
Wayne State University Dissertations
Graphene has been widely studied in electrochemical energy storage devices, such as Li-ion batteries, Li-air batteries and supercapacitors, due to its high conductivity, high surface area, mechanical and electrochemical stability. However, the fact that graphene (and other carbon based materials) can only store charges on exposed surface, which severely limits the capacitance. On the other hand, it is well-known transition metal oxides have much higher inherent capacitance than graphene. However, transition metal oxides also have their limitations. Most significantly, the low conductivity confines the efficient storing and releasing process which makes the practical capacitance of the bulk transition metal oxides …
Study Of Tin-Based Electrodes And Ionic Liquid Electrolytes For Energy Storage Materials, Mahbuba Ara
Study Of Tin-Based Electrodes And Ionic Liquid Electrolytes For Energy Storage Materials, Mahbuba Ara
Wayne State University Dissertations
Due to rapid increase in energy demand, modern society necessitates to develop high power, light-weight, and more economical energy storage systems. Rechargeable Li-ion batteries and Li-oxygen batteries have become the most promising energy devices in terms of energy and power densities. Diverse research on these battery components is being carried out by researchers worldwide to improve power density to meet the future requirements. The possible routes to improving power density of Li-ion as well as Li-oxygen batteries is to use nanostructured, hybrid electrode materials since they can significantly enhance kinetics of electrochemical reactions; and ion-conducting, low volatile electrolytes since they …
Environmental Considerations Of Small-Scale Hydroelectric Power Plants In Himachal Pradesh, India, Darwin Werthessen
Environmental Considerations Of Small-Scale Hydroelectric Power Plants In Himachal Pradesh, India, Darwin Werthessen
Undergraduate Review
The need for increased energy production in India is high priority and hydroelectric power has been identified as having the greatest potential for achieving energy independence. The Indian government has continually created more streamlined methods for efficient implementation of hydroelectric facilities with an emphasis on small-scale (<25 MW) and micro (<5 MW) facilities in the more remote regions. Himachal Pradesh has effectively achieved one hundred percent electrification due to these initiatives and realized some of the most successful development in the nation with respect to rural electrification and improved infrastructure such as roads, schools, and hospitals. Hydroelectricity, and especially that produced through run of the river type systems, is generally embraced as a renewable source of energy by many established standards. Small scale run of the river facilities are also heralded for the minimal impact to the environment. However, with increased development and construction in continually industrializing areas, measurable human impacts have increased felt within the environment and ecosystems. Several studies and papers published by the Indian government, as well as the state government of Himachal Pradesh, identify these impacts as low to nonexistent. In contrast, a growing number of studies refute this claim and deserve consideration. There is a diversity of opinion on this subject. Some secondary sources indicate minimal to non-existent environmental impacts stemming from projects less than 25 MW, considered as Small Hydro Power (SHP); while other sources express significant concern. Interviews with government officials and researchers in the Indian states of Himachal Pradesh and Uttarakhand as well as in the capital city of Delhi revealed a wide range of views. This paper presents observations and argues for greater exploration of these issues through future research.
Assessing The Viability Of Converting Indiana's Energy Framework To Renewable Sources By 2050, Lincoln Barlow 14
Assessing The Viability Of Converting Indiana's Energy Framework To Renewable Sources By 2050, Lincoln Barlow 14
Honor Scholar Theses
Conflicting views exist with regard to the feasibility of transitioning the world from a dependence on fossil fuel energy production to a completely renewable, emission-free energy climate. Findings show that the potential for Indiana to match its current energy production solely utilizing renewable energy capabilities existing on the Indiana landscape is available using a calculated combination of available resources from available analytical data. The annual required energy production, phased in gradually through the year 2050 and excluding the transportation sector, would consist of ~61% onshore wind energy (443,900 GWh), ~1% offshore wind energy (8,129 GWh), ~1% hydroelectric power (6,833 GWh), …
Calculating The Solar Energy Of A Flat Plate Collector, Ariane Rosario
Calculating The Solar Energy Of A Flat Plate Collector, Ariane Rosario
Undergraduate Journal of Mathematical Modeling: One + Two
The amount of solar energy that could be obtained by a flat plate solar collector of one square meter dimension is calculated in three different locations: Tampa FL, Fairbanks AL, and Pontianak Indonesia, considering the varying sunset time for each day of the year. The results show that if the collectors are placed near the equator, more total energy could be obtained. In fact, by placing a solar collector in Pontianak, Indonesia 12.42% more solar energy can be obtained than by placing it in Tampa and 96.9% more solar energy than Alaska.
Sedimentologic, Stratigraphic, And Diagenetic Analysis Of Microbialite-Bearing Lacustrine Rift Sequence Within The Lower Cretaceous Yucca Formation, Indio Mountains, West Texas, Xiaowei Li
Open Access Theses & Dissertations
This study sedimentologically, stratigraphically, and diagenetically analyzed strata of the upper member of the Lower Cretaceous Yucca Formation in the Indio Mountains, West Texas in order to develop an outcrop-based analog model for similar facies that form major hydrocarbon reservoirs in the Pre-salt rift basins of the South Atlantic margin. The lower Cretaceous strata of the Indio Mountains were deposited in rift basins that formed along the eastern margin of the Chihuahua Trough under similar greenhouse climate conditions as the South Atlantic basins.
Eleven lithofacies are recognized from the upper member of the Yucca Formation to the base of the …
Degradable Nanocomposite Preformed Particle Gel For Chemical Enhanced Oil Recovery Applications, Paul Tongwa
Degradable Nanocomposite Preformed Particle Gel For Chemical Enhanced Oil Recovery Applications, Paul Tongwa
Doctoral Dissertations
”This work presents two new materials that can be potentially used in conformance control to increase ultimate oil recovery from mature oilfields.
The first product is a degradable nanocomposite preformed particle gel for enhanced in-depth mobility control. Three different types of degradable nanocomposite preformed particle gels were synthesized. These three nanocomposite hydrogels were made using Laponite XLG, Calcium Montmorillonite, and Sodium Montmorillonite nanomaterials. It was observed that after degradation, Laponite XLG nanocomposite hydrogels had the highest post-degradation viscosity (4437 cp), followed by sodium nanocomposite hydrogels (129 cp), and lastly calcium nanocomposite hydrogels (75.5 cp). Thus, degradable Laponite XLG nanocomposite hydrogels …
Novel Nanocomposite Material For Supercapacitor Applications, Wissam Fawaz
Novel Nanocomposite Material For Supercapacitor Applications, Wissam Fawaz
Wayne State University Theses
With the rapid development of electric-based transportation and introduction of various hybrids, plug-in and full electric vehicles, there is an urgent need to develop a high power energy storage system to complement the high energy density batteries, to extend the range and life of HEVs and EVs. In this work, we have developed and optimized a unique composite material that can serve as electrode materials for high power supercapacitor for various applications. The material is prepared form high surface area graphene-like carbon made from exfoliated graphite flakes through thermal shock process. The expanded graphite then is mixed with functionalized stacked …
Solar Pv Power Generation Forecasting Using Hybrid Intelligent Algorithms And Uncertainty Quantification Based On Bootstrap Confidence Intervals, Donna Alhakeem
Solar Pv Power Generation Forecasting Using Hybrid Intelligent Algorithms And Uncertainty Quantification Based On Bootstrap Confidence Intervals, Donna Alhakeem
Open Access Theses & Dissertations
This Thesis focuses on short-term photovoltaic forecasting (STPVF) for the power generation of a solar PV system using probabilistic forecasts and deterministic forecasts. Uncertainty estimation, in the form of a probabilistic forecast, is emphasized in this Thesis to quantify the uncertainties of the deterministic forecasts. Two hybrid intelligent models are proposed in two separate chapters to perform the STPVF. In Chapter 4, the framework of the deterministic proposed hybrid intelligent model is presented, which is a combination of wavelet transform (WT) that is a data filtering technique and a soft computing model (SCM) that is generalized regression neural network (GRNN). …
Hydropower, Mary Finley-Brook
Hydropower, Mary Finley-Brook
Geography and the Environment Faculty Publications
Hydropower dates back to the use of waterwheels to grind grain in Greece over two thousand years ago. Modern hydropower is a mature industry that has been used to generate electricity since the 1880s by capturing flowing water with a dam or other diversion structure and channeling it through a waterwheel or turbine. According to a 2012 report by the International Energy Agency, internationally dams are responsible for the largest amount of power generation from a renewable source; yet they have come under scrutiny as a result of environmental and social impacts perceived to be unsustainable (McCully 2001). Specific impacts, …
Renewable Energy, Mary Finley-Brook
Renewable Energy, Mary Finley-Brook
Geography and the Environment Faculty Publications
Renewable energy installations are expanding around the globe. Although there is excellent potential for achieving sustainability with multiple types of renewable energy, no energy source is a panacea. There are place-specific costs and benefits from every energy type, and the scale of production influences impacts. Industrial-scale renewable energy sources usually merge into existing energy grids and may often be connected to broader economic and political initiatives. Such as regional integration, development of new growth poles to stimulate economic expansion in areas without infrastructure, job creation, or trade expansion. With the exception of desert solar projects or initiatives in remote areas, …
A Decision Modeling For Phasor Measurement Unit Location Selection In Smart Grid Systems, Seung Yup Lee
A Decision Modeling For Phasor Measurement Unit Location Selection In Smart Grid Systems, Seung Yup Lee
Wayne State University Theses
As a key technology for enhancing the smart grid system, Phasor Measurement Unit (PMU) provides synchronized phasor measurements of voltages and currents of wide-area electric power grid. With various benefits from its application, one of the critical issues in utilizing PMUs is the optimal site selection of units.
The main aim of this research is to develop a decision support system, which can be used in resource allocation task for smart grid system analysis. As an effort to suggest a robust decision model and standardize the decision modeling process, a harmonized modeling framework, which considers operational circumstances of component, is …
Review Of Kentucky Oil And Gas Production, 2010, Brandon C. Nuttall
Review Of Kentucky Oil And Gas Production, 2010, Brandon C. Nuttall
Information Circular--KGS
The 2010 oil and natural gas production data by well published by the Kentucky Division of Oil and Gas were analyzed in response to proposed rules for limiting emissions from oil and natural gas facilities. Average daily production was determined for 5,044 oil wells and 12,940 natural gas wells. Of these wells, 955 are combined oil and natural gas producers. The overwhelming majority of Kentucky’s wells are marginal (stripper) wells and produce at rates of less than 10 barrels of oil (or barrels of oil equivalent) per day (bo/d) or 60 thousand cubic feet of natural gas per day (Mcf/d) …
Assessing The Energy Efficiency And Emissions Of A Vertical Closed-Loop Geothermal System At West Chester University, Jacqueline Wilson
Assessing The Energy Efficiency And Emissions Of A Vertical Closed-Loop Geothermal System At West Chester University, Jacqueline Wilson
Earth & Space Sciences Student Work
No abstract provided.
Application Of The Kalman Filter On Full Tensor Gravity Gradiometry Data Around The Vinton Salt Dome, Louisiana, Mahnaz Sepehrmanesh
Application Of The Kalman Filter On Full Tensor Gravity Gradiometry Data Around The Vinton Salt Dome, Louisiana, Mahnaz Sepehrmanesh
Theses and Dissertations--Earth and Environmental Sciences
Full tensor gravity (FTG) data are known for their high resolution but also for higher noise in its components due to the dynamic nature of the platform used for data acquisition. Although a review of the literature suggests steady increase in the success of gravity gradiometry, we still cannot take advantage of the full potential of the method, mostly because of the noise with the same amplitude and wavenumber characteristics as the signal that affects these data. Smoothing from common low pass filters removes small wavelength features and makes it difficult to detect structural features and other density variations of …
Natural Gas Service Expansion Criteria In Maine, Kevin Mahaffey
Natural Gas Service Expansion Criteria In Maine, Kevin Mahaffey
Muskie School Capstones and Dissertations
The purpose of this study is to gain an understanding of the framework used by Maine’s natural gas utilities in making decisions to expand natural gas infrastructure and service to new customers,and then to apply this knowledge in an attempt to identify municipalities that are potentially attractive candidates for service expansion within Maine.
This study is not a precise model for gas utilities, but is meant rather to be a reconnaissance study for finding viable and attractive candidates for service.This study was limited both by resources and the inaccessibility of proprietary information.
The Effect Of Annealing On Amorphous Silicon Based Solar Photovoltaic Thermal System (Pv/T) And Appropriate Global Dispatch Strategies, Joseph Rozario
The Effect Of Annealing On Amorphous Silicon Based Solar Photovoltaic Thermal System (Pv/T) And Appropriate Global Dispatch Strategies, Joseph Rozario
Dissertations, Master's Theses and Master's Reports - Open
Previous work has shown that high-temperature short-term spike thermal annealing of hydrogenated amorphous silicon (a-Si:H) photovoltaic thermal (PVT) systems results in higher electrical energy output. The relationship between temperature and performance of a-Si:H PVT is not simple as high temperatures during thermal annealing improves the immediate electrical performance following an anneal, but during the anneal it creates a marked drop in electrical performance. In addition, the power generation of a-Si:H PVT depends on both the environmental conditions and the Staebler-Wronski Effect kinetics. In order to improve the performance of a-Si:H PVT systems further, this paper reports on the effect of …
Review Of Factors Affecting Sustainability In The Universities, Hosna Ajilian
Review Of Factors Affecting Sustainability In The Universities, Hosna Ajilian
Dissertations, Master's Theses and Master's Reports - Open
Purpose – The focus of this research is to find out a meaningful relationship between adopting sustainability practices and some of the characteristics of institutions of higher education (IHE). IHE can be considered as the best place to promote sustainability and develop the culture of sustainability in society. Thus, this research is conducted to help developing sustainability in IHE which have significant direct and indirect impact on society and the environment.
Design/methodology/approach – First, the sustainability letter grades were derived from “Greenreportcard.org” which have been produced based on an evaluation of each school in nine main categories including: Administration, Climate …
The Domestic Natural Gas Shortage In China, Ting Guo
The Domestic Natural Gas Shortage In China, Ting Guo
Dissertations, Master's Theses and Master's Reports - Open
This thesis analyzes the domestic shortage in the Chinese natural gas market. Both the domestic supply and demand of natural gas are growing fast in China. However, the supply cannot catch up with the demand. Under the present pricing mechanism, the Chinese natural gas market cannot get the equilibrium by itself. Expensive imports are inadequate to fill the increasing gap between the domestic demand and supply. Therefore, the shortage problem occurs. Since the energy gap can result in the arrested development of economics, the shortage problem need to be solved. This thesis gives three suggestions to solve the problem: the …
Electrocatalytic Processing Of Renewable Biomass-Derived Compounds For Production Of Chemicals, Fuels And Electricity, Le Xin
Dissertations, Master's Theses and Master's Reports - Open
The dual problems of sustaining the fast growth of human society and preserving the environment for future generations urge us to shift our focus from exploiting fossil oils to researching and developing more affordable, reliable and clean energy sources. Human beings had a long history that depended on meeting our energy demands with plant biomass, and the modern biorefinery technologies realize the effective conversion of biomass to production of transportation fuels, bulk and fine chemicals so to alleviate our reliance on fossil fuel resources of declining supply. With the aim of replacing as much non-renewable carbon from fossil oils with …
Energy Efficiency Analysis And Optimization For Mobile Platforms, Grace Metri
Energy Efficiency Analysis And Optimization For Mobile Platforms, Grace Metri
Wayne State University Dissertations
The introduction of mobile devices changed the landscape of computing. Gradually, these devices are replacing traditional personal computer (PCs) to become the devices of choice for entertainment, connectivity, and productivity. There are currently at least 45.5 million people in the United States who own a mobile device, and that number is expected to increase to 1.5 billion by 2015.
Users of mobile devices expect and mandate that their mobile devices have maximized performance while consuming minimal possible power. However, due to the battery size constraints, the amount of energy stored in these devices is limited and is only growing by …
Development Of Silicon-Based Anodes And In-Situ Characterization Techniques For Lithium Ion Batteries, Jinho Yang
Development Of Silicon-Based Anodes And In-Situ Characterization Techniques For Lithium Ion Batteries, Jinho Yang
Wayne State University Dissertations
Development of lithium ion batteries (LIBs) with higher capacity has been booming worldwide, as growing concerns about environmental issues and increasing petroleum costs. The demands for the LIBs include high energy and power densities, and better cyclic stability in order to meet a wide range of applications, such as portable devices and electric vehicles. Silicon has recently been explored as a promising anode material due to its low discharge potential (<0.4 V) and high specific capacity (4200 mAh g-1). The capacity of silicon potentially exceeds more than 10 times of the conventional graphite anode (372 mAh g-1). However, the silicon anode experiences huge volume …0.4>
Testing Of Two Novel Semi-Implicit Particle-In-Cell Techniques, Trenton J. Godar
Testing Of Two Novel Semi-Implicit Particle-In-Cell Techniques, Trenton J. Godar
Browse all Theses and Dissertations
PIC (Particle-in-cell) modeling is a computational technique which functions by advancing computer particles through a spatial grid consisting of cells, on which can be placed electric and magnetic fields. This method has proven useful for simulating a wide range of plasmas and excels at yielding accurate and detailed results such as particle number densities, particle energies, particle currents, and electric potentials. However, the detailed results of a PIC simulation come at a substantial cost of computational requirement and the algorithm can be susceptible to numerical instabilities. As processors become faster and contain more cores, the computational expense of PIC simulations …
Improving Methods For The Successful Establishment Of Switchgrass, Whitney Marie Monin
Improving Methods For The Successful Establishment Of Switchgrass, Whitney Marie Monin
Theses and Dissertations--Plant and Soil Sciences
Our research investigated whether priming switchgrass seeds with water or ethephon would increase stand establishment in the field. ‘Alamo’ seed germinated faster and grew taller than ‘Cave-in-Rock.Seeds primed for six days in water or for one day in ethephon 10 mM had the greatest seedling densities. In growth chamber environments seed priming were tested to hasten germination velocity. Seeds primed for two, four or six days in water germinated faster than unprimed seeds. Ethephon treatments reduced overall germination and germination velocity. Accent and Accent Q herbicides containing nicosulfuron are used to control weeds. To test ‘Alamo’ sensitivity to these herbicides, …
Sustainability Of Sustainability: Exploring Alternatives In Alternative Energy, Corey C. Cooling
Sustainability Of Sustainability: Exploring Alternatives In Alternative Energy, Corey C. Cooling
Honors Program Theses
In light of a gap in the literature of what makes or breaks student biodiesel conversion programs, this thesis will give a review and analysis of select existing biodiesel conversion programs and suggest a model reflecting the characteristics of successful student programs.
The study’s research questions are:
1. What are the common themes or factors successful programs exhibit?
2. What institutional factors create a productive environment for biodiesel programs?
3. Can the tactics of successful programs be generalized?
Firstly, I define successful programs as programs that are financially feasible, develop student skills, lower the environmental impact of universities and foster …
Role Of Feedstock And Process Conditions On Biomass Gasification For Synthesis Gas Production, Mayoorey Murugathasan
Role Of Feedstock And Process Conditions On Biomass Gasification For Synthesis Gas Production, Mayoorey Murugathasan
Masters Theses
In this study gasification of three different biomasses were performed to study the impact of process conditions and different feed stocks on final syngas composition. Final composition of the syngas determines the energy value of the resulting syngas and the suitability of syngas in chemical synthesis applications. Three kinds of feedstocks studied include switch grass pellets:wood chips 50:50 mixture, wood pellets:wood chips 50:50 mixture and wood pellets.
The effect of process conditions including temperature and feed stock composition on syngas composition were studied. Gas chromatography was used to analyze the final gas composition of syngas samples collected at five different …
Characterizing And Improving Production Of Fermentable Sugars And Co-Products From A Forest Product Industry Wastewater Stream, Jifei Liu
Dissertations, Master's Theses and Master's Reports - Open
Hardboard processing wastewater was evaluated as a feedstock in a bio refinery co-located with the hardboard facility for the production of fuel grade ethanol. A thorough characterization was conducted on the wastewater and the composition changes of which during the process in the bio refinery were tracked. It was determined that the wastewater had a low solid content (1.4%), and hemicellulose was the main component in the solid, accounting for up to 70%. Acid pretreatment alone can hydrolyze the majority of the hemicellulose as well as oligomers, and over 50% of the monomer sugars generated were xylose. The percentage of …
Depositional And Sequence Stratigraphic Framework Of An Exposed Neoproterozoic Suprasalt Minibasin At Patawarta Diapir, Flinders Ranges, South Australia, Cora Evelyn Gannaway
Depositional And Sequence Stratigraphic Framework Of An Exposed Neoproterozoic Suprasalt Minibasin At Patawarta Diapir, Flinders Ranges, South Australia, Cora Evelyn Gannaway
Open Access Theses & Dissertations
Outcrops of mixed carbonate/siliciclastic strata comprise the Neoproterozoic (Marinoan) Wilpena Group at Patawarta diapir in the Flinders Ranges, South Australia. Patawarta diapir is a ramping allochthonous salt sheet flanked by suprasalt and subsalt minibasin strata. The stratal and structural attributes of the coeval minibasin fills afford a unique perspective on lateral and vertical salt migration and the impacts of salt-modified bathymetry in shallow marine depositional environments. This study documents the depositional and diagenetic facies, stratal thickness trends, and structural style and stratal geometries of the suprasalt minibasin fill and correlates it to the previously studied subsalt minibasin fill. The goal …
A Long- And Short-Run Analysis Of Electricity Demand In Ciudad Juarez, Ericka Cecilia Mendez
A Long- And Short-Run Analysis Of Electricity Demand In Ciudad Juarez, Ericka Cecilia Mendez
Open Access Theses & Dissertations
Economic growth and appliance saturation are increasing electricity consumption in Mexico. Annual frequency data from 1990 to 2012 are utilized to develop an error correction framework that sheds light on short- and long-run electricity consumption behavior in Ciudad Juarez, a large Mexican metropolitan economy at the border with the United States. The results for this study reveal that electricity is an inelastic normal good in this market. Moreover, natural gas is found to be a weak complement to electricity. With regards to the customer base in this urban economy, population, employment, and income exercise positive and statistically significant impacts on …
Alkali Promoted Molybdenum (Iv) Sulfide Based Catalysts, Development And Characterization For Alcohol Synthesis From Carbon Monoxide And Hydrogen, Belinda Delilah Molina
Alkali Promoted Molybdenum (Iv) Sulfide Based Catalysts, Development And Characterization For Alcohol Synthesis From Carbon Monoxide And Hydrogen, Belinda Delilah Molina
Open Access Theses & Dissertations
For more than a century transition metal sulfides (TMS) have been the anchor of hydro-processing fuels and upgrading bitumen and coal in refineries worldwide. As oil supplies dwindle and environmental laws become more stringent, there is a greater need for cleaner alternative fuels and/or synthetic fuels. The depletion of oil reserves and a rapidly increasing energy demand worldwide, together with the interest to reduce dependence on foreign oil makes alcohol production for fuels and chemicals via the Fischer Tropsch synthesis (FTS) very attractive. The original Fischer-Tropsch (FT) reaction is the heart of all gas-to-liquid technologies; it creates higher alcohols and …