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5,621 full-text articles. Page 77 of 123.

Solubility And Thermodynamic Modeling Of Carcinogenic Nitrosamines In Aqueous Amine Solvents For Co2 Capture, Jesse Thompson, Naser Matin, Kunlei Liu 2017 University of Kentucky

Solubility And Thermodynamic Modeling Of Carcinogenic Nitrosamines In Aqueous Amine Solvents For Co2 Capture, Jesse Thompson, Naser Matin, Kunlei Liu

Center for Applied Energy Research Faculty and Staff Publications

A better understanding of key fundamental properties of nitrosamines, including their solubility in aqueous amine solvents, is needed to understand and accurately model the vapor-phase emission levels from operating CO2 capture systems. In this work, the first experimental Henry's volatility coefficient of a nitrosamine was obtained with a novel method using static headspace solid phase micro extraction (SPME) and gas chromatography mass spectrometry (GC/MS). The experimentally determined Henry's volatility coefficient of nitrosopyrrolidine (NPY) was found to be around 0.02 (dimensionless) at 25 °C, and falls in the range of a semi-volatile compound. A linear temperature dependency of the Henry's …


Techno-Economic Analysis Of A Secondary Air Stripper Process, J. R. Heberle, Heather Nikolic, Jesse Thompson, Kunlei Liu, Lora L. Pinkerton, David Brubaker, James C. Simpson, Song Wu, Abhoyjit S. Bhown 2017 Electric Power Research Institute

Techno-Economic Analysis Of A Secondary Air Stripper Process, J. R. Heberle, Heather Nikolic, Jesse Thompson, Kunlei Liu, Lora L. Pinkerton, David Brubaker, James C. Simpson, Song Wu, Abhoyjit S. Bhown

Center for Applied Energy Research Faculty and Staff Publications

We present results of an initial techno-economic assessment on a post-combustion CO2 capture process developed by the Center for Applied Energy Research (CAER) at the University of Kentucky using Mitsubishi Hitachi Power Systems’ H3-1 aqueous amine solvent. The analysis is based on data collected at a 0.7 MWe pilot unit combined with laboratory data and process simulations. The process adds a secondary air stripper to a conventional solvent process, which increases the cyclic loading of the solvent in two ways. First, air strips additional CO2 from the solvent downstream of the conventional steam-heated thermal stripper. This extra stripping …


Thermal Degradation Pathways Of Aqueous Diamine Co2 Capture Solvents, Jesse Thompson, Henry Richburg, Kunlei Liu 2017 University of Kentucky

Thermal Degradation Pathways Of Aqueous Diamine Co2 Capture Solvents, Jesse Thompson, Henry Richburg, Kunlei Liu

Center for Applied Energy Research Faculty and Staff Publications

Diamines have shown promise as CO2 capture solvents, yet very little is known about their pathway for thermal degradation. In this study, diamine thermal degradation was quantitatively monitored in lab-scale experiments on four aqueous diamine solvents; ethylenediamine (EDA) 1,2-propanediamine (1,2-DAP), 1,3-diaminopropane (1,3-DAP) and N-methyl-1,2-ethanediamine (NMEDA), to gain a more comprehensive understanding of their degradation pathway(s). The major degradation products were identified by high resolution time-of-flight mass spectrometry (TOF-MS). Degradation pathways were proposed showing that the primary thermal degradation route for this class of amine are through carbamate formation followed by intermolecular cyclization to form an imidazolidinone or nucleophilic attack …


Kinetic Energy Investigation, Mike Jackson 2017 University of Arkansas, Fayetteville

Kinetic Energy Investigation, Mike Jackson

High School Lesson Plans

Students will build a mouse trap powered car that converts elastic potential energy contained in the trap’s spring to linear kinetic energy of the car. The release of this energy results in a net force which leads to linear acceleration. This acceleration can be measured with Vernier Logger Pro®, and using Newton’s Second Law of Motion, the net force can be calculated. Finally, using the concept of work, the final kinetic energy of the car can be calculated. Once students become familiar with the calculation of work and energy, the teacher will challenge the students to modify their cars to …


Pore Resolved Simulations Of Char Particle Gasification, Greg Hingwah Fong 2017 Marquette University

Pore Resolved Simulations Of Char Particle Gasification, Greg Hingwah Fong

Master's Theses (2009 -)

Coal is a significant source of energy in today’s world and many studies have been conducted in order to better understand and optimize its use. To address greenhouse effects associated with coal combustion, cleaner methods for harnessing its energy are being explored. One such method is gasification, a process which converts coal into syngas, a mixture consisting primarily of H2 and CO. Syngas can be used to generate electricity or to produce hydrocarbons that can be used as fuels. To better understand and optimize the process, simulations can be used to study the gasification of individual porous char particles that …


A Parametric Investigation And Optimization Of A Cylindrical Explosive Charge, Logan Ellsworth Beaver 2017 Marquette University

A Parametric Investigation And Optimization Of A Cylindrical Explosive Charge, Logan Ellsworth Beaver

Master's Theses (2009 -)

Explosive device design has a wide impact in the space, manufacturing, military, and mining industries. As a step toward computer assisted design of explosives, an optimization framework was developed using the Design Analysis Kit for Optimization and Terrascale Applications (Dakota). This software was coupled with the hydrocode CTH. This framework was applied to three exploding cylinder models, two in 1D and one in 2D. Gradient descent, dividing rectangles, and a genetic algorithm were each applied to the one-dimensional models. Parametric studies were performed as a basis for comparison with the optimization algorithms, as well as qualifying the 1D model's accuracy. …


Development Of An Optimal Controller And Validation Test Stand For Fuel Efficient Engine Operation, Jack G. Rehn III 2017 Marquette University

Development Of An Optimal Controller And Validation Test Stand For Fuel Efficient Engine Operation, Jack G. Rehn Iii

Master's Theses (2009 -)

There are numerous motivations for improvements in automotive fuel efficiency. As concerns over the environment grow at a rate unmatched by hybrid and electric automotive technologies, the need for reductions in fuel consumed by current road vehicles has never been more present. Studies have shown that a major cause of poor fuel consumption in automobiles is improper driving behavior, which cannot be mitigated by purely technological means. The emergence of autonomous driving technologies has provided an opportunity to alleviate this inefficiency by removing the necessity of a driver. Before autonomous technology can be relied upon to reduce gasoline consumption on …


Design And Manufacture Of A Waste Compactor Prototype: A Step Towards Implementing A Non-Burn Health Care Waste Disposal In Developing Countries, Tito Mwinuka 2017 Department of Mechanical and Industrial Engineering, College of Engineering and Technology, University of Dar es Salaam

Design And Manufacture Of A Waste Compactor Prototype: A Step Towards Implementing A Non-Burn Health Care Waste Disposal In Developing Countries, Tito Mwinuka

Tanzania Journal of Engineering and Technology (TJET)

Non-burn technology is the only safe way of handling and disposing infectious healthcare waste. It involves steam treatment of infectious waste at temperatures higher than 121 o C for a minimum of 30 minutes before disposing them just like other municipal waste. Infectious healthcare waste is normally only about 10 25% of all healthcare waste. In this paper, design, manufacturing and testing of a waste compactor for reducing waste volume to facilitate its handling is discussed. Preliminary tests show that the waste volume can be reduced to less than 10% of its original volume using the developed compactor. Waste compactors …


Comparing Building Modeling Software To The Energy Record Of A Preexisting Structure, Nathan Lasley 2017 Western Kentucky University

Comparing Building Modeling Software To The Energy Record Of A Preexisting Structure, Nathan Lasley

Mahurin Honors College Capstone Experience/Thesis Projects

Buildings are complex systems - even "simple" residential structures. Many factors go into building energy consumption and the design to reduce it. Computer energy modeling allows the simultaneous consideration and balance of many of those variables. Computer models are only as good as the information provided however. Tools like blower door and duct blaster can be used to aid in verifying the model or to provide more information to build a better model. In order to verify of building computer energy simulation methods, the Western Kentucky University (WKU) Office of Sustainability located at 503 Regents Ave. in Bowling Green KY …


Techno-Economic Analyses Of Large-Scale Electric Vehicle Systems, Florida Solar Energy Center, Zhihua Qu 2017 Florida Solar Energy Center

Techno-Economic Analyses Of Large-Scale Electric Vehicle Systems, Florida Solar Energy Center, Zhihua Qu

FSEC Energy Research Center®

This project developed the process, methodology and algorithms for computer models to evaluate the techno-economic implications of a large-scale electrified transportation sector. The model factors include developing and interacting with a network of electric vehicles and the electric grid, the infrastructure for electric vehicle charging, integrating the transportation and power systems into the urban setting, studying the impact of distributed energy storage and determining the economic impact of increased renewable energy and EVs on the electricity grid and its stability. The modeling related project results are presented in five journal articles and two conference papers. In this final report, the …


Optimal Charging Scheduler For Electric Vehicles On The Florida Turnpike, Florida Solar Energy Center, Zhihua Qu 2017 Florida Solar Energy Center

Optimal Charging Scheduler For Electric Vehicles On The Florida Turnpike, Florida Solar Energy Center, Zhihua Qu

FSEC Energy Research Center®

This project developed a methodology to simulate and analyze roadway traffic patterns and expected penetration and timing of electric vehicles (EVs) with application directed toward the requirements for electric vehicle supply equipment (EVSE) siting and purchasing/leasing at turnpike plazas. The project also developed a wireless-communication-based driver-assistance application that would optimize the location and timing of charging for individual drivers as well as efficiency of the overall charging network. The first steps of the project were to develop the systematic methodology for analyzing expected penetration of electric vehicles (EVs) and their impacts on the overall transportation infrastructure. An analytical model consisting …


Improved Hot Water Code Calculation, Florida Solar Energy Center, Jeffrey Sonne 2017 Florida Solar Energy Center

Improved Hot Water Code Calculation, Florida Solar Energy Center, Jeffrey Sonne

FSEC Energy Research Center®

The purpose of this report is to identify hot water waste sources, characterize the implications of climatic differences on hot water use and characterize the energy impacts of hot water recirculation systems and controls with respect to energy consumption in Florida homes, and recommend Florida-specific methods that can be employed in the Florida Energy Code for residential hot water use and energy consumption calculations.


Jfs Turbine Engine For Cal Poly Mechanical Engineering Department, Dorian Capps, Zoe Kai Tuggle 2017 California Polytechnic State University, San Luis Obispo

Jfs Turbine Engine For Cal Poly Mechanical Engineering Department, Dorian Capps, Zoe Kai Tuggle

Mechanical Engineering

This project concerns the development of a gas turbine engine laboratory activity for use in one of Cal Poly’s technical elective courses in the Mechanical Engineering Department, ME 444: Combustion Engine Design. The class is taught by Dr. Patrick Lemieux, who is also in charge of the on-campus engines lab where the turbine engine will be installed. The engine itself is a JFS-100-13A turboshaft engine that will be coupled to an electric dynamometer inside of the dyno test cell. Students taking the ME 444 class, likely starting in Winter Quarter of 2018, will be able to perform hands-on experiments using …


A Meta-Analysis Of Energy Savings From Lighting Programs In Michigan, Teryila Ephraim Amough 2017 Western Michigan University

A Meta-Analysis Of Energy Savings From Lighting Programs In Michigan, Teryila Ephraim Amough

Dissertations

In order to fill the gap in aggregates savings, the challenges faced by electric utilities for the demand of lighting energy are addressed by lighting efficiency programs. The shrinking capacity and electrical grid reliability call for improved ways to evaluate energy saving programs with evaluation methods that are robust in determining the impact of lighting programs. This study employed meta-analysis as an evaluation method to determine energy savings, impact, emissions of greenhouse gases (GHG), pollutants, and health effects from lighting programs in Michigan. The findings of the study showed the programs impact in Hedges’ g of 0.36 for the overall …


Transportation Planning For Electric Vehicles And Associated Infrastructure, Florida Solar Energy Center, David L. Block 2017 Florida Solar Energy Center

Transportation Planning For Electric Vehicles And Associated Infrastructure, Florida Solar Energy Center, David L. Block

FSEC Energy Research Center®

Planning is the key to successful adoption and deployment of any new technology, and it is particularly important when that advancement involves a paradigm shift such as electrified transportation. At its core, electric transportation is largely a technology deployment. The vehicles and supporting infrastructure are unique to this mode of transportation; requiring new and specific planning and policies to support their deployment. This EVTC project brings together these planning elements and their role in the future U.S. transportation network. The project results are presented in five planning related subject areas: (1) Identification of 14 of the 22 EVTC program topics …


Prediction Of Electric Vehicle Penetration, Florida Solar Energy Center, David L. Block 2017 Florida Solar Energy Center

Prediction Of Electric Vehicle Penetration, Florida Solar Energy Center, David L. Block

FSEC Energy Research Center®

The object of this report is to present the current market status of plug-in-electric vehicles (PEVs) and to predict their future penetration within the world and U.S. markets. The sales values for 2016 show a strong year of PEV sales both in the world and the U.S. China leads in yearly sales at 316,800 (a 53% increase for 2016 from 2015) followed by Western Europe at 209,300 vehicles sold. The U.S. is third at 159,600. These three regions comprise 91% of the global sales market. The world total of PEV sales for 2016 is estimated to be 756,000 up from …


Residential Performance Code Methodology For Crediting Dehumidification And Smart Vent Applications Final Report, Florida Solar Energy Center, Robin Vieira 2017 Florida Solar Energy Center

Residential Performance Code Methodology For Crediting Dehumidification And Smart Vent Applications Final Report, Florida Solar Energy Center, Robin Vieira

FSEC Energy Research Center®

As energy efficiency reduces the hours where air conditioning is called for, and as codes require outdoor air to be brought into homes, humidity levels in homes may rise to the point where dehumidification is required. However, there are currently no standards in Florida's Energy Conservation Code for dehumidification. Thus, a mechanical contractor that invests in an expense such as variable speed heat pumps or heat pipe technology in order to dehumidify and save energy receives little benefit relative to another home that installs an inefficient dehumidifier. A reference home dehumidification strategy needs to be established.Another strategy to reduce interior …


Are Solar Panels A Viable Power Source For A Green Energy Vehicle?, Mason C. Adams 2017 Linfield College

Are Solar Panels A Viable Power Source For A Green Energy Vehicle?, Mason C. Adams

Senior Theses

A solar cell powered go-kart has been built and tested. The result shows using solar energy alone cannot meet the requirement of running a regular passenger car. This is due to the limited surface area of the passenger car. This thesis also discusses the operating principles of solar panels, the physics of P type and N type semiconductors, and the formation of the PN junction, as well as the solar current. Modifications of an existing go-kart are described in detail in this thesis. Suggestions for making green vehicles are discussed as well.


Electric Vehicle Battery Durability And Reliability Under Electric Utility Grid Operations, Florida Solar Energy Center, Matthieu Dubarry 2017 Florida Solar Energy Center

Electric Vehicle Battery Durability And Reliability Under Electric Utility Grid Operations, Florida Solar Energy Center, Matthieu Dubarry

FSEC Energy Research Center®

Battery degradation is extremely important to EV technologies and is a function of several factors, such as electrode chemistries, operating temperatures, and usage profiles (i.e. vehicle-only vs. vehicle-to-grid (V2G) applications). The goal of this research was to assess such impact. Laboratory testing of commercial "18650" Li-ion cells was conducted in Hawaii Natural Energy Institute's Battery Testing Laboratory. The battery test plan used two separate experiments: a cycling experiment to assess the impact of both V2G and grid-to-vehicle (G2V) charging strategies and a calendar aging experiment to assess the impact of temperature and State of Charge (SOC). The results have shown …


Automated And Connected Vehicle Implications And Analysis, Florida Solar Energy Center, David L. Block 2017 Florida Solar Energy Center

Automated And Connected Vehicle Implications And Analysis, Florida Solar Energy Center, David L. Block

FSEC Energy Research Center®

Automated and connected vehicles (ACV) and, in particular, autonomous vehicles have captured the interest of the public, industry and transportation authorities. ACVs can significantly reduce accidents, fuel consumption, pollution and the costs of congestion which in turn will offer a fundamental change to the future U.S. transportation network. The objective of this project was to evaluate ACV technologies, activities, laws and policies that are now in place or proposed and to assess future ACV usage. The assessment also evaluates the highest level of automated vehicles called autonomous or self-driving vehicles and includes how electric vehicles (EVs) will participate in the …


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