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Articles 1 - 30 of 144
Full-Text Articles in Physical Sciences and Mathematics
Experimental Study On Acoustic Emission Evolution Characteristics And Response Mechanism Of Damaged Rocks, Zhang Kai, Zhang Dongxiao, Zhao Yongqiang, Yang Yingming, Guo Weiyao, Sun Peng, Xu Linpeng, Fu Guangsheng
Experimental Study On Acoustic Emission Evolution Characteristics And Response Mechanism Of Damaged Rocks, Zhang Kai, Zhang Dongxiao, Zhao Yongqiang, Yang Yingming, Guo Weiyao, Sun Peng, Xu Linpeng, Fu Guangsheng
Coal Geology & Exploration
The evolution of rock internal damage is one of the causes of geotechnical engineering disasters, and revealing the response characteristics of key parameters during the rock failure could provide a basis for the identification instability state after rock failure, which is of great importance for the early warning and prevention of rock engineering disasters. Herein, the siltstone specimens with different damage degrees were prepared by cyclic loading-unloading tests, and uniaxial loading tests were carried out with the damaged specimens. On this basis, the relationship between the damage degree of specimen and the wave velocity, as well as the acoustic emission …
Bring On The Heat, Renée Stoute
Bring On The Heat, Renée Stoute
The Journal of International Relations, Peace Studies, and Development
According to the World Economic Forum, in retaliation to European Union sanctions and embargoes, Russia cut EU gas flows by around 80% between May and October 2022 (WEF, 2022). The EU, in turn, has had to not only reduce energy consumption within the public and private sectors but has also scrambled to find energy alternatives to compensate for its energy shortcomings. However, due to the EU’s rejection of Russian oil and gas, there are now opportunities to embrace more sustainable energy alternatives quicker than previously expected. This could lead to a faster transition towards the use of cleaner and more …
Clean Energy At The Crossroads Of America: An Integrated Resource Plan For Northern Indiana Public Service Company, Llc (Nipsco), Saad Z. Khan, Shend Boshnjaku
Clean Energy At The Crossroads Of America: An Integrated Resource Plan For Northern Indiana Public Service Company, Llc (Nipsco), Saad Z. Khan, Shend Boshnjaku
Master's Projects and Capstones
This paper outlines an Integrated Resource Plan (IRP) for the Indiana electric utility company, NIPSCO, looking forward to the year 2050 and evaluating different pathways to net zero emissions from the power generation sector. It is a plan for the future, identifying the most cost-effective and reliable mix of resources to meet the energy needs of NIPSCO's customers and reaching decarbonization goals by mid-century.
Energy And Climate Change Issues Around Csudh, Alex E. Perez, Tara B. Jones, Raju Bista, Parveen K. Chhetri
Energy And Climate Change Issues Around Csudh, Alex E. Perez, Tara B. Jones, Raju Bista, Parveen K. Chhetri
CSU Journal of Sustainability and Climate Change
Climate change is posing significant challenges to California’s energy sector. Extreme weather events (heat and cold) may pressure existing infrastructure. Many studies have indicated that extreme climate events would impact the energy system by affecting peak electricity demand. However, very few studies have been conducted to understand how disadvantaged communities (DACs) will be impacted. Because of unequal access to energy infrastructure (electricity generation and battery storage), DACs are more vulnerable to power outages due to the rising number of significant weather events caused by climate change. To address the issue of how DACs are disproportionately affected by climate change-related energy …
How-To: Make Your House A Battery--How Demand-Side Management Will Be One Key To A Greener Future, Explained For Popular Audiences., Olivia Kaulfus
How-To: Make Your House A Battery--How Demand-Side Management Will Be One Key To A Greener Future, Explained For Popular Audiences., Olivia Kaulfus
WWU Honors College Senior Projects
Demand-side management will be used to increase the electric grid's flexibility and make it easier to achieve a clean energy future. But what is it? How will it affect me, and what do I need to know? This brochure (and slide deck from the in-person presentation) will hopefully give you a bit of insight into the greater world of demand-side management. Don't know anything about electricity? No problem. Only the most necessary information is provided by this little handout. Most exciting of all is that demand-side management could be coming to a utility near you and could even help lower …
To Destroy Or Transform? Two Fossil Fuel Transitions Offer Glimpse Into Industry’S Future, Chloe Bennett, Sarah Kerson
To Destroy Or Transform? Two Fossil Fuel Transitions Offer Glimpse Into Industry’S Future, Chloe Bennett, Sarah Kerson
Capstones
In 2019, the Philadelphia Energy Solutions oil refinery closed after a dangerous explosion. But for years before the accident, members of the local environmental justice organization Philly Thrive had been advocating for its closure. Neighborhood residents who live near the refinery site had been complaining for years of health problems, ranging from asthma to cancer. “Enough is enough,” says Sylvia Bennett, 79, who lives in the Grays Ferry neighborhood near where the refinery is located. Her two daughters have both been diagnosed with cancer.
What will become of the refinery site remains to be seen as conversations between Hilco and …
Climate Change Curricula In Alberta, Canada: An Intersectional Framing Analysis, Greg Lowan-Trudeau
Climate Change Curricula In Alberta, Canada: An Intersectional Framing Analysis, Greg Lowan-Trudeau
Northwest Journal of Teacher Education
This article is comprised of a climate change-focused framing analysis of proposed revisions to Alberta, Canada’s K-6 curriculum as an ideologically motivated manifestation of curricular epistemicide. Eisner’s three curricula—the explicit, implicit, and null—and scholarship related to intersectional climate and environmental justice, education, and communication provide the theoretical framework. This inquiry concludes with a critical discussion of and possible alternatives to the revised curriculum with further consideration of the implications for those involved with similar endeavours in other jurisdictions across Canada and around the world.
Evaluation Of Energy Release From Wildfires Across The Elevation Gradient, Isabelle Rose Butler
Evaluation Of Energy Release From Wildfires Across The Elevation Gradient, Isabelle Rose Butler
Boise State University Theses and Dissertations
Wildfires are an integral process in vegetative terrestrial land which shape ecosystem functions. A warming climate, however, has increased the size and severity of fires with significant ecosystem and societal implications. Furthermore, warming has changed characteristics of wildfires enabling a median upslope advance of 252 m in high-elevation forest fires from 1984 to 2017, allowing wildfires to burn in areas that were previously too wet to burn frequently. This exposed an additional 81,500 square kilometers (11%) of western US montane forests to fires.
In this thesis, I test the hypothesis that wildfires burn more intensely in high-elevation mesic forests than …
The Demotechnic Index Of Nations, 1980-2018, Camden Rainwater
The Demotechnic Index Of Nations, 1980-2018, Camden Rainwater
Geosciences Undergraduate Honors Theses
The Demotechnic Index (DI) is a non-dimensional metric that is the scalar multiple of energy consumption over and above that required for mere subsistence of a national population. Thus, the DI is a measure of energy efficiency that scales a country’s industrial energy consumption (called the total technological energy) and the energy required to meet the metabolic demand of the population (called the total metabolic energy). The DI was created by scientist John Vallentyne in 1982, refined in 1994, but never gained popularity or wide use as a sustainability metric. The objective of this thesis was to re-evaluate the DI …
Generating The Power Of Microbes How Microbial Metabolism May Solve Water And Energy Shortages, Anna Vietmeier
Generating The Power Of Microbes How Microbial Metabolism May Solve Water And Energy Shortages, Anna Vietmeier
D.U.Quark
No abstract provided.
Sustainability & (Em)Powering Community Based Action In Chula Vista, Gabriella Medina, Darbi Berry
Sustainability & (Em)Powering Community Based Action In Chula Vista, Gabriella Medina, Darbi Berry
San Diego Regional Climate Collaborative
The City of Chula Vista (Chula Vista / the City) has already begun to experience the localized impacts of climate change through record-breaking heat waves, droughts, and wildfires. In response to the impacts of climate change posing a threat to Chula Vista residents’ quality of life, the City declared a climate emergency in March 2022. This declaration advanced the City’s commitment to update its Greenhouse Gas (GHG) reduction goals, strengthen existing efforts like the City Operations Sustainability Plan, and encourage new City-wide and voluntary actions by residents and businesses. The Chula Vista DIY Sustainable Home Toolkit (Toolkit) is a best …
The Implementation Of Advanced Digitalization In The Oil And Gas Industry, Ensieh Rezafar
The Implementation Of Advanced Digitalization In The Oil And Gas Industry, Ensieh Rezafar
Walden Dissertations and Doctoral Studies
AbstractThe immature advanced digitalization in the oil and gas industry can limit access to the potential value of mature progressive digitalization. Oil and gas leaders must expedite the implementation of advanced digitalization to increase organizational proficiencies and reduce costs and losses. Grounded in Pettigrew and Whipp’s dimensions of strategic change theory, the purpose of this qualitative multiple case study was to explore strategies some leaders in the oil and gas industry used to implement advanced digitalization. The participants were seven leaders in two oil service companies in North America involved in the successful implementation of progressive digitalization. Data were collected …
A 60- Year Record Of The Demotechnic Index Of States, 1960-2019, Gavin James Kellough
A 60- Year Record Of The Demotechnic Index Of States, 1960-2019, Gavin James Kellough
Graduate Theses and Dissertations
A country’s dependency on energy resources can be interpreted through the calculation of energy indices. The Demotechnic Index (DI) was used to determine the trajectory of energy efficiency of each state in the United States over the period 1960-2019. The DI serves as a measure of the energy intensity of states and a proxy for energy sustainability of each state.The DI is the ratio of total energy use to total metabolic energy demand of a population. Mathematically, DI = (E_T-E_M)/E_M E_T represents the total energy used (metabolic energy + technological energy in kilojoules annually, kJ/y), while EM represents the basic …
Efficient Management Of Nitrogen And Phosphorus At Centralized Water Reclamation Facilities, Helene Kassouf
Efficient Management Of Nitrogen And Phosphorus At Centralized Water Reclamation Facilities, Helene Kassouf
USF Tampa Graduate Theses and Dissertations
A variety of process configurations are employed at municipal water reclamation facilities (WRFs), such as 5-stage Bardenpho, oxidation ditch, modified Ludzack-Ettinger (MLE) process, and sidestream recycle. However, all of these configurations face certain challenges in achieving optimum treatment of nitrogen and phosphorus. In this dissertation, the driving objectives were to: (1) quantitatively assess the fate of nitrogen and phosphorus (mass fluxes) at a treatment facility that employs biological nutrient removal, aerobic digestion, and sidestream recycle, (2) evaluate the performance of a microbial fuel cell (MFC) as a technology to remove nitrogen from sidestreams at a treatment plant that employs that …
Operating Solar Projects In Nevada, 2021, Kristian Thymianos, Saha Salahi, William E. Brown Jr.
Operating Solar Projects In Nevada, 2021, Kristian Thymianos, Saha Salahi, William E. Brown Jr.
Environment
The U.S. Energy Information Administration (EIA) and the Solar Energy Industries Association (SEIA) both provide national databases that contain comprehensive lists of active solar projects in the United States. This fact sheet provides a list of operating solar projects in the State of Nevada.
Solar Thermal Cooling System: A Feasible Option For The Maldives, Ahmed Fathhee
Solar Thermal Cooling System: A Feasible Option For The Maldives, Ahmed Fathhee
English Language Institute
This poster presents the potentiality of utilizing solar and converting thermal energy to cool buildings in the Maldives. A thermal model of a typical building showing the annual cooling load is presented which was used to run a simulation model of a solar thermal cooling system. Simulation data shows that it is possible to use a solar thermal cooling system to cool the buildings effectively.
Small Commercial And Industrial Electricity Consumption In Las Cruces, New Mexico, Andrew Taylor Yurachek
Small Commercial And Industrial Electricity Consumption In Las Cruces, New Mexico, Andrew Taylor Yurachek
Open Access Theses & Dissertations
Research examining small commercial and industrial electricity usage patterns have historically received less attention than residential electricity consumption patterns. This study examines electricity as an input to commercial and industrial production in Las Cruces, New Mexico using annual frequency data from 1978 to 2018. Those data examined include labor, per capita personal income, price measures for electricity and natural gas, and weather variables. The long-run and short-run elasticities of the data are then estimated using an autoregressive distributed lag model (ARDL). In the long run, CIS customers in Las Cruces respond to natural gas a complimentary good, and the derived-demand …
Mining Energy Consumption As A Function Of Ore Grade Decline: The Case Of Lead And Zinc, Ricardo Magdalena, Alicia Valero, Jose-Luis Palacios, Antonio Valero
Mining Energy Consumption As A Function Of Ore Grade Decline: The Case Of Lead And Zinc, Ricardo Magdalena, Alicia Valero, Jose-Luis Palacios, Antonio Valero
Journal of Sustainable Mining
Demand for raw materials is increasing exponentially. To satisfy that demand, more minerals need to be mined from the Earth’s crust. As a result, minerals are being exhausted, and ore grades decline. Lower ore grade mines also mean more energy, which in turn entails fossil fuel emissions and more climate change. This paper estimates the specific energy for the beneficiation process of metals lead and zinc as case studies. The evaluation is performed with specialized software, HSC Chemistry which assesses the specific energy for every stage: comminution, flotation, and refining. Different scenarios have been established to simulate the behavior of …
Future Energy: Opportunities & Challenges, Thomas W. Kerlin
Future Energy: Opportunities & Challenges, Thomas W. Kerlin
Open Textbooks
Future Energy: Opportunities & Challenges was originally published in 2013 by the International Society of Automation. Rights for this work have been reverted to the authors by the original publisher. The author has chosen to license this work with a Creative Commons Attribution 4.0 International license (see https://creativecommons.org/licenses/by/4.0/).
Click the blue Download button to download the full book PDF, or download individual chapters from the list.
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Future Energy: Opportunities & Challenges, Thomas W. Kerlin
Future Energy: Opportunities & Challenges, Thomas W. Kerlin
Open Educational Resources and Course Materials
Future Energy: Opportunities & Challenges was originally published in 2013 by the International Society of Automation. Rights for this work have been reverted to the authors by the original publisher. The author has chosen to license this work with a Creative Commons Attribution 4.0 International license (see https://creativecommons.org/licenses/by/4.0/).
Click the blue Download link on this page to download the full book PDF. Individual chapters are also listed and available for download in the list below.
Table of Contents
Part I. GETTING STARTED
Chapter 1 – Introduction to the Energy Story
Chapter 2 – Fundamentals
Chapter 3 – Energy Production and …
Residential Demand Side Management: Strategies For Increasing Electric Utility Profitability, Alexandra Rose Bennett
Residential Demand Side Management: Strategies For Increasing Electric Utility Profitability, Alexandra Rose Bennett
Walden Dissertations and Doctoral Studies
Some electric utility leaders lack effective strategies to reduce demand billing charges. Utility leaders are concerned with lowering demand billing charges, as failure to do so can negatively affect profitability. Guided by the operations management theory, the purpose of this qualitative multiple case study was to explore strategies that distribution electric utility managers use to reduce demand billing chargers from their power providers. The participants were three electric utility leaders working in the Midwest United States who used successful residential demand-side management (DSM) strategies. Data were collected using semistructured interviews and utility documents to address the research question. The collected …
An Analysis Of Liquefied Petroleum Gas Adoption For Household Cooking In Nigeria, Saheed Olanrewaju Lasisi
An Analysis Of Liquefied Petroleum Gas Adoption For Household Cooking In Nigeria, Saheed Olanrewaju Lasisi
Walden Dissertations and Doctoral Studies
The Nigerian government established a domestic liquefied petroleum gas penetration program (DLPGPP) to support Nigerian households that still use traditional fuels, which are inefficient and hazardous for users while polluting and degrading the environment. Little is known about the relationships that exist among liquefied petroleum gas (LPG) accessibility, LPG affordability, and LPG adoption to guide DLPGPP implementation. Narrowing this gap was the purpose of this study using the general framework of consumer theory. The study's research questions addressed the effects of LPG affordability and LPG accessibility on LPG adoption for cooking in Nigeria’s households. A cross-sectional, correlational survey was employed …
Effect Of Cloud Cover On Optimum Orientations Of Fixed Solar Panels For Maximum Yearly Energy Collection, Prethew Prasad
Effect Of Cloud Cover On Optimum Orientations Of Fixed Solar Panels For Maximum Yearly Energy Collection, Prethew Prasad
Browse all Theses and Dissertations
The amount of cloud cover present in the sky is a significant factor when determining the solar radiation impinging on a solar panel. The optimum tilt required to achieve maximum energy impingement on a surface is also influenced by the amount of cloud cover. This work presents a method for determining the optimum tilt angle for a fixed solar panel when a set amount of cloud cover is present in the sky. Fixed tilt angles that have the most incident solar energy over the course of a year as a function of cloud cover, latitude, and azimuthal angle orientation are …
Energy Demand And Economic Growth: Public Opinion And Mutual Exclusivity, Nicholas L. Silvis
Energy Demand And Economic Growth: Public Opinion And Mutual Exclusivity, Nicholas L. Silvis
Student Publications
The world is currently undergoing an energy transition from primarily fossil fuels to cleaner energy. The developing world is becoming more advanced, spawning relentless economic growth and an increase in energy consumption. Energy demand and economic growth are inextricably linked which poses a paradoxical question about future economic growth during a period of energy transition. Unfortunately, the transition requires large upfront costs with no guaranteed net benefit. A multitude of studies depict the impact of education, party identification, and age on how individuals perceive alternative energy. This study shows that views on governmental spending and party membership have a paradoxical …
Techno-Economic Analysis Of Floating Offshore Airborne Wind Energy Systems In The Gulf Of Mexico, Alexandria Savannah Leake
Techno-Economic Analysis Of Floating Offshore Airborne Wind Energy Systems In The Gulf Of Mexico, Alexandria Savannah Leake
LSU Master's Theses
Techno-economic analyses play an important role in determining locations for conventional wind turbine installations. This method is utilized to assess energy production potential for a new type of wind technology, known as airborne wind energy (AWE). The first objective of the present thesis was to determine overall investment potential of a utility-scale floating offshore airborne wind farm, testing five floating platform design concepts. The second objective was to determine whether the wind resources (100-1500 m) are ideal to support AWE systems in the Gulf of Mexico. Specifically, a hypothetical benchmark wind farm was developed 15 km offshore from Venice, Louisiana. …
An Assessment Of Renewable Energy Technology Implementation In Storrs, Connecticut: Emissions Reduction And Feasibility Of A Microgrid System At Uconn, Sophie Macdonald
An Assessment Of Renewable Energy Technology Implementation In Storrs, Connecticut: Emissions Reduction And Feasibility Of A Microgrid System At Uconn, Sophie Macdonald
Honors Scholar Theses
The purpose of this project is to design a clean energy-sourced microgrid for UConn’s main campus that would reduce the university’s energy emissions while remaining within the geographic boundaries of viable UConn-owned land. Economic cost was not considered in this analysis; instead, emissions and space constraints were the optimized measures of value and feasibility. Sources of energy that were considered include photovoltaics (PV), wind turbines, hydrokinetic systems, and fuel cells. Energy storage capacity was included in the analysis as well. The overall system was optimized first by ignoring space constraints and for a minimum of 10% reduction from the current …
College Of Natural Sciences, Forestry, And Agriculture_Eco 180 And 405 Reading Recommendations, Sharon Klein
College Of Natural Sciences, Forestry, And Agriculture_Eco 180 And 405 Reading Recommendations, Sharon Klein
College of Natural Sciences, Forestry, and Agriculture
Email from Sharon Klein, Associate Professor, School of Economics, University of Maine to the Provost Office describing Professor Klein's energy classes ECO 180 and 405, she lead an optional hour-long Zoom discussion about the topic "What does the coronavirus mean for sustainable energy?" during the week of March 30. Includes list of the recommended articles students should read in advance of the discussion.
Dual-Axis Solar Tracker, Bryan Kennedy
Dual-Axis Solar Tracker, Bryan Kennedy
All Undergraduate Projects
Renewable energies, and fuels that are not fossil fuel-based, are one of the prolific topics of debate in modern society. With climate change now becoming a primary focus for scientists and innovators of today, one of the areas for the largest amount of potential and growth is that of the capturing and utilization of Solar Energy. This method involves using a mechanical system to track the progression of the sun as it traverses the sky throughout the day. A dual-axis solar tracker such as the one designed and built for this project, can follow the sun both azimuthally and in …
Effectively Managing Energy Costs In The Resort Industry, Justin Whitesides
Effectively Managing Energy Costs In The Resort Industry, Justin Whitesides
Walden Dissertations and Doctoral Studies
Hawaii's commercial consumers pay the highest electricity rate in the United States;these costs are expected to rise 3-3.5% in 2021. Management in the Hawaiian resort industry that lacks adequate knowledge of controlling these rising costs is at a competitive disadvantage. Utilizing the diffusion of innovation theory, the purpose of this qualitative case study was to explore strategies used in the resort industry to control energy costs. The participants comprised of 10 energy management professionals with successful experience managing energy consumption in the resort industry. Data were collected through telephone interviews, archival documentation, and field notes. Using Yin's 5-step process of …
The Economics Of Residential Solar Panels: Comparing Tiered And Time Of Use Plans, Prashanth Nyer, Candace Ybarra, Jack B. Broughton
The Economics Of Residential Solar Panels: Comparing Tiered And Time Of Use Plans, Prashanth Nyer, Candace Ybarra, Jack B. Broughton
Business Faculty Articles and Research
This case study uses data from a Southern California Edison residential customer on a grandfathered tiered rate plan to investigate 1) whether it is economically beneficial for the customer to switch from a tiered-rate plan to a Time-of-Use (TOU) plan, 2) whether going solar now makes financial sense for new solar customers, 3) what level of usage offset (the percentage of the customer’s annual electricity consumption that is provided by the solar panels) would result in the maximum financial benefit for the customer under each of the many TOU plans, and 4) whether solar customers on TOU plans can save …