Intelligent Application Of Flexible Ac Transmission System Components In An Evolving Power Grid,
2018
University of Arkansas, Fayetteville
Intelligent Application Of Flexible Ac Transmission System Components In An Evolving Power Grid, Robert Wall
Graduate Theses and Dissertations
The world revolves around energy and the energy sector is continually transforming and evolving. The status quo has been set by governing agencies in the United States for completely reliable power. The demand for energy efficiency continually rises for multiple reasons. Technology has improved for all sectors of the power grid, including renewable energy sources, fault protection, and SMART grid technology. The addition of new energy sources has led to the decommissioning of inefficient energy sources. The implementation of new technologies and power load on a large scale, coupled with the removal of grid stabilizers has posed different challenges that …
Cost Benefit Analysis Of Led Vs Florescent Lighting,
2018
Southwestern Oklahoma State University
Cost Benefit Analysis Of Led Vs Florescent Lighting, Kurtis Clark, Phillip Humphrey
Student Research
Over the last few years, the state of Oklahoma has been looking at ways to reduce expenses to address concerns about a budget deficit. There have been efforts made to reduce expenses due to the use of energy. It has been said, when the lights are on, work is getting done. Running lights is therefore the cost of doing business. Our research examines the question, “is there a way to provide better lighting while operating at a lower cost.” This research examines the current lighting at Southwestern State University, primarily fluorescent lighting (FL), and a cost benefit analysis of switching …
Semi-Annual Program Progress Performance Report For University Transportation Center Pppr#10,
2018
Florida Solar Energy Center
Semi-Annual Program Progress Performance Report For University Transportation Center Pppr#10, Florida Solar Energy Center, Richard Raustad
FSEC Energy Research Center®
The Electric Vehicle Transportation Center (EVTC) supports the U.S. Department of Transportation's strategic goal of planning for near-term integration of alternative fuel vehicles as a means to build a sustainable transportation system. The project objectives are to evaluate technologies, standards, planning and policies to ensure seamless integration of electric vehicles (EVs) into a complex transportation network and electricity grid. The EVTC bridges the gap between deployment of electric vehicles and the traditional transportation system.
A Systematic Investigation Of Condensation Heat Transfer Using Asymmetric Micro-Scale Surfaces,
2018
Louisiana State University and Agricultural and Mechanical College
A Systematic Investigation Of Condensation Heat Transfer Using Asymmetric Micro-Scale Surfaces, Emily Brown
LSU Master's Theses
Asymmetric surfaces been shown to inducing unidirectional motion in the Leidenfrost regime; however, very minimal research has been conducted to investigate whether these surface can enhance condensation through the same means. The investigation of heat transfer of ratchets in condensation is a relatively untapped area of study, specifically ratchets with superhydrophobic properties. Anticipated difficulty lies in creating surfaces features or coatings that retain the ratchets and can adequately sustain optimal wetting state of Cassie-Baxter required to improve heat transfer performance during condensation. This study serves to investigate whether ratchets are a feasible surface feature to enhance condensation heat transfer. First, …
2020 Low Sulphur Regulation : The Underlying Potential To Improve The ‘Energy Efficiency Design Index’ Of Ships,
2018
World Maritime University
2020 Low Sulphur Regulation : The Underlying Potential To Improve The ‘Energy Efficiency Design Index’ Of Ships, Nawin Ranjan Sharma
World Maritime University Dissertations
No abstract provided.
Modelling Hybrid Renewable Energy System For Philippine Merchant Marine Academy : A Feasibility Study,
2018
World Maritime University
Modelling Hybrid Renewable Energy System For Philippine Merchant Marine Academy : A Feasibility Study, Nayan Guimpayan
World Maritime University Dissertations
No abstract provided.
Ship-Port Interface : Analysis Of The Cost-Effectiveness Of Cold Ironing At Mombasa Port,
2018
World Maritime University
Ship-Port Interface : Analysis Of The Cost-Effectiveness Of Cold Ironing At Mombasa Port, Ronald Ssali
World Maritime University Dissertations
No abstract provided.
Novel Design And Synthesis Of Composite Nanomaterials For Lithium And Multivalent Ion Batteries,
2018
Louisiana State University and Agricultural and Mechanical College
Novel Design And Synthesis Of Composite Nanomaterials For Lithium And Multivalent Ion Batteries, Wangwang Xu
LSU Doctoral Dissertations
Nowadays, the fast-increasing energy demand for efficient, sustainable and environmentally-friendly energy storage devices remains a significant and challenging issue. Lithium ion batteries (LIBs) have been widely used as commercial energy devices in portable electronics and also shown great promise in upcoming large-scale applications due to their advantages of environmental safety, efficiency in energy delivering and light weight. However, due to their limited capacity, energy densities and cycle ability, LIBs still need further improvement to expand their applications to a larger field, especially electric vehicle (EVs) and hybrid electric vehicles (HEVs), in which energy storage devices with large capacity and high …
Energy Comparison Of Air Conditioning Split System Vs. Solar Absorption Systems For A Prototype Educational Building,
2018
The British University in Egypt
Energy Comparison Of Air Conditioning Split System Vs. Solar Absorption Systems For A Prototype Educational Building, Hesham Safwat
Mechanical Engineering
this paper aims to study solar energy in Egypt and its potential utilization in solar thermal cooling (absorption technique). The paper includes a detailed proposed solar absorption cooling system for one building located at the British University in Egypt with maximum cooling load of 141.3 ton. A detailed design using a design software (TRNSYS) is introduced to model the system and for optimization. A cost analysis is finally included to compare the overall costs of both the proposed cooling system and the current system.
Electrochemical Hydrogenation Of Acetone To Produce Isopropanol Using A Polymer Electrolyte Membrane Reactor,
2018
Old Dominion University
Electrochemical Hydrogenation Of Acetone To Produce Isopropanol Using A Polymer Electrolyte Membrane Reactor, Chen Li, Ashanti M. Sallee, Xiaoyu Zhang, Sandeep Kumar
Civil & Environmental Engineering Faculty Publications
Electrochemical hydrogenation (ECH) of acetone is a relatively new method to produce isopropanol. It provides an alternative way of upgrading bio-fuels with less energy consumption and chemical waste as compared to conventional methods. In this paper, Polymer Electrolyte Membrane Fuel Cell (PEMFC) hardware was used as an electrochemical reactor to hydrogenate acetone to produce isopropanol and diisopropyl ether as a byproduct. High current efficiency (59.7%) and selectivity (>90%) were achieved, while ECH was carried out in mild conditions (65 degrees C and atmospheric pressure). Various operating parameters were evaluated to determine their effects on the yield of acetone and …
Policies That Impact The Acceleration Of Electric Vehicle Adoption,
2018
University of Central Florida
Policies That Impact The Acceleration Of Electric Vehicle Adoption, Florida Solar Energy Center, Colleen Mccann Kettles
FSEC Energy Research Center®
To better understand the influence of policy initiatives that relate to electric vehicles (EVs) have on accelerated deployment, this project focused on a number of successful public and private initiatives and policies designed to encourage the adoption of EVs and related infrastructure. References to databases that keep pace with this rapidly evolving and transformative industry are included, and best practices for design of laws and incentives are provided.
Simulation Of The Oxygen Reduction Reaction (Orr) Inside The Cathode Catalyst Layer (Ccl) Of Proton Exchange Membrane Fuel Cells Using The Kinetic Monte Carlo Method,
2018
University of Nevada, Las Vegas
Simulation Of The Oxygen Reduction Reaction (Orr) Inside The Cathode Catalyst Layer (Ccl) Of Proton Exchange Membrane Fuel Cells Using The Kinetic Monte Carlo Method, Baosheng Bai, Yi-Tung Chen
Mechanical Engineering Faculty Research
In this paper, a numerical model of the kinetic Monte Carlo (KMC) method has been developed to study the oxygen reduction reaction (ORR) that occurs inside the cathode catalyst layer (CCL). Firstly, a 3-D model of the CCL that consists of Pt and carbon spheres is built using the sphere packing method; secondly, an efficient procedure of the proton-oxygen reaction process is developed and simulated. In the proton-oxygen reaction process, all of the continuous movements of protons and oxygen are considered. The maximum reaction distance is determined to be 8 Å. The input pressures of protons and oxygen are represented …
Design Of Wind Turbine Tower Height And Blade Length: An Optimization Approach,
2018
University of Arkansas, Fayetteville
Design Of Wind Turbine Tower Height And Blade Length: An Optimization Approach, Ryan Wass
Mechanical Engineering Undergraduate Honors Theses
The wind industry is a fast growing market and is quickly becoming competitive with traditional non-renewable energy resources. As with any developing industry, research must continually be redefined as more complex understandings of design variables are learned. Optimization studies are common ways to quickly refine design variable selections. Historical wind turbine data shows that the tower hub height to rotor diameter ratio scales almost linearly. However there is no specific rule that dictates the optimum hub height for a given diameter. This study addresses this question by using an Excel based optimization program to determine the height to diameter ratio …
The Correlation Between Energy Cost Share, Human, And Economic Development Using Time Series Data From Australasia, Europe, North America, And The Brics Nations,
2018
Deutsche Gesellschaft fur Internationale Zusammenarbeit (GIZ) GmbH
The Correlation Between Energy Cost Share, Human, And Economic Development Using Time Series Data From Australasia, Europe, North America, And The Brics Nations, Ryan Roberts, Josephine Kaviti Musango, Alan Colin Brent, Matthew K. Heun
University Faculty Publications and Creative Works
This paper investigates how a change in a region's energy cost share (ECS), a ratio of a region's energy expenditure as a fraction of its gross domestic product (GDP), affects the region's social and economic development. Nations from four regions of the world, namely Australasia, Europe, North America, and the BRICS nations (Brazil, Russia, India, China, and South Africa) were chosen for this study. Using time series data from the period of 1978 to 2010, the annual ECS of each country was compared to the year-on-year GDP change, as well as the components of the human development index (HDI). High …
Waste Heat Recovery From A Vented Electric Clothes Dryer Utilizing A Finned-Tube Heat Exchanger,
2018
Purdue University
Waste Heat Recovery From A Vented Electric Clothes Dryer Utilizing A Finned-Tube Heat Exchanger, Abdul Raheem A. Shaik, Stephen L. Caskey, Eckhard A. Groll
The Summer Undergraduate Research Fellowship (SURF) Symposium
Conventional residential clothes dryers continuously vent moist, hot air during the drying process. The vented air leaves the home but still has useful temperature and humidity that could be recovered to offset other heating demands in the home. A study is carried out to quantify the amount of heat extracted from the waste heat stream of a conventional, vented clothes dryer. To extract the heat, a water cooled, fin-and-tube heat exchanger is located within the exhaust duct. A steady state thermodynamic dry coil and wet coil model was built in Engineering Equation Solver (EES). The model accounts for the heat …
Untangling The Drivers Of Energy Reduction In The Uk Productive Sectors Efficiency Or Offshoring,
2018
University of Leeds
Untangling The Drivers Of Energy Reduction In The Uk Productive Sectors Efficiency Or Offshoring, Lukas Hardt, Anne Owen, Paul E. Brockway, Matthew K. Heun
University Faculty Publications and Creative Works
The UK has been one of the few countries that has successfully decoupled final energy consumption from economic growth over the past 15 years. This study investigates the drivers of final energy consumption in the UK productive sectors between 1997 and 2013 using a decomposition analysis that incorporates two novel features. Firstly, it investigates to what extent changes in thermodynamic efficiency have contributed to overall changes in sectoral energy intensities. Secondly, it analyses how much of the structural change in the UK economy is driven by the offshoring of energy-intensive production overseas. The results show that energy intensity reductions are …
Selecting The Most Effective Energy Modeling Tool Based On A Project Requirement,
2018
East Tennessee State University
Selecting The Most Effective Energy Modeling Tool Based On A Project Requirement, Sodiq Akande
Electronic Theses and Dissertations
Building energy usage can be derived and controlled by performing building energy modeling. BEM can be performed using numerous software tools such as DesignBuilder, OpenStudio, EnergyPlus etc. These modeling tools can be sorted into three different modeling categories: Black-box, Gray-box and White-box. It is important for a modeler to be able to quickly select the proper tool from the proper category to meet the need of the project. To validate the method of categorizing tools, the three models generated using tools from each category and the modeling outputs required were compared. Each model was designed to estimate the amount of …
Intermodel Comparison Between Switch 2.0 And Ge Maps: Evaluating A New Tool For Integrated Modeling Of Electric Vehicles And High-Renewable Power Systems,
2018
Florida Solar Energy Center
Intermodel Comparison Between Switch 2.0 And Ge Maps: Evaluating A New Tool For Integrated Modeling Of Electric Vehicles And High-Renewable Power Systems, Florida Solar Energy Center, Matthias Fripp
FSEC Energy Research Center®
This report presents an inter-model comparison between the Switch and GE Energy Consulting, (GE) Multi Area Production Simulation (MAPS) power system models. This work was conducted as part of the project on the "Effect of Electric Vehicles on Power System Expansion and Operation" under a sub award to the Hawaii Natural Energy Institute, University of Hawaii at Manoa (UH), from the Electric Vehicle Transportation Center (EVTC) at the Florida Solar Energy Center, University of Central Florida. The EVTC is a University Transportation Center funded by the Research and Innovative Technology Administration of the US Department of Transportation. The EVTC is …
What Can I Do As A Student To Make A Positive Impact On The Environment?,
2018
University of Arkansas, Fayetteville
What Can I Do As A Student To Make A Positive Impact On The Environment?, Tammy Guthrie, Greg Herzig, Kathy Prophet, Cassie Kautzer
Middle School Lesson Plans
Students discover ways they can make a positive impact on the environment.
Low Voltage Ride Through Enhancement For Wind Turbines Equipped With Dfig Under Symmetrical Grid Faults,
2018
Department of Electrical Engineering, University of Dar es Salaam, Dar es Salaam
Low Voltage Ride Through Enhancement For Wind Turbines Equipped With Dfig Under Symmetrical Grid Faults, Francis Mwasilu
Tanzania Journal of Engineering and Technology (TJET)
In modern power systems with significant penetration of wind-turbines (WTs), improvement of low voltage ride through (LVRT) capability of WTs equipped with doubly-fed induction generators (DFIGs) is an important issue. Thus, this paper proposes a low voltage ride through (LVRT) strategy, which comprise of a capacitor connected in series with an inductor both connected in parallel to a resistor. The configuration is then connected to a small series resistor via a pair of antiparallel-Thyristors. The circuit and its switching control scheme of the proposed LVRT circuit are designed to: minimize the transition times, maintain the RSC connection to the rotor-windings, …
