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A Model To Relate Environmental Variation To Npdes Permit Violations At Thermoelectric Facilities On The Taunton River, Seth Delevan Sheldon 2012 University of Massachusetts Boston

A Model To Relate Environmental Variation To Npdes Permit Violations At Thermoelectric Facilities On The Taunton River, Seth Delevan Sheldon

Graduate Doctoral Dissertations

Large thermoelectric facilities are issued permits to discharge high volume, high temperature effluents as part of the National Pollutant Discharge Elimination System (NPDES). Once-through cooled power plants are especially dependent on large quantities of cool water to operate. When ambient temperatures are high or streamflow is very low, power plant managers must reduce (i.e., "dial back") energy generation in order to avoid violating their NPDES permit limitations. Sudden dial-back can have human health impacts when electricity is no longer available to provide cooling or other vital services. A superior system of electricity and environmental management would reduce the probability of …


Nevada Grown, Cutting Edge Clean Energy Innovation Please, Nevada Institute for Renewable Energy Commercialization (NIREC) 2012 University of Nevada, Las Vegas

Nevada Grown, Cutting Edge Clean Energy Innovation Please, Nevada Institute For Renewable Energy Commercialization (Nirec)

Nevada Newsflash

The Nevada chapter of Young Professionals in Energy (YPE Nevada) seeks to facilitate the advancement of mid-career energy professionals in the state of Nevada through social, educational, vocational and community service events. YPE Nevada aims to build a cohesive network of energy professionals from students to retired executives, and to create an environment where members can learn from each other’s experiences, share industry knowledge and discuss career matters. By expanding networking between the state’s energy professionals, it aims to enhance entrepreneurial activity.


Unlv Students To Build Zero Net Energy Home; Boom & Bust Report, Nevada Institute for Renewable Energy Commercialization (NIREC) 2012 University of Nevada, Las Vegas

Unlv Students To Build Zero Net Energy Home; Boom & Bust Report, Nevada Institute For Renewable Energy Commercialization (Nirec)

Nevada Newsflash

Design and build an approximately 800 square foot home that consumes zero net energy.

Those are the instructions for Team Las Vegas, after the University of Nevada, Las Vegas (UNLV) became one of only 20 schools worldwide to quality for the 2013 Solar Decathlon, sponsored by the U.S. Department of Energy’s National Renewable Energy Laboratory.

UNLV’s entry, Autonomy House, is marketed as an “age-in-place” home for an empty nester whose children have grown up. The 730-squarefoot home will use daylighting from windows, insulation and solar panels to produce more energy than it consumes. Additionally, it will filter rainwater for household …


Enhancement In Degradation Of Environmental Pollutants: Fenton Degradation Of 2,4,6-Trinitrotoluene And Photodegradation Of Deepwater Horizon Crude Oil, Sarah M. King 2012 University of New Orleans

Enhancement In Degradation Of Environmental Pollutants: Fenton Degradation Of 2,4,6-Trinitrotoluene And Photodegradation Of Deepwater Horizon Crude Oil, Sarah M. King

LSU New Orleans Theses and Dissertations

Pollution poses serious threats to both the environmental and the organisms that depend on their environment for survival. Due to the toxicity of most contaminants, there is a dire need for remediation of polluted sites. Remediation studies were conducted on two high priority pollutants: 2,4,6-trinitrotoluene (TNT) and crude oil.

TNT was the most common explosive used in the 20th century. Continuous contamination has resulted in an urgent need for remediation. Fenton reagent provides an advanced oxidation process that is capable of remediating recalcitrant explosives, such as TNT. One drawback of Fenton chemistry is that the reaction requires acidic pH …


The Full Cost Of Renewables: Managing Wind Integration Costs In California, William Savage 2012 Pomona College

The Full Cost Of Renewables: Managing Wind Integration Costs In California, William Savage

Pomona Senior Theses

Wind power will be an important component of California's aggressive strategies to meet its greenhouse gas reduction targets by the year 2020. However, the costs of integrating wind power's variable and uncertain output are often ignored. I argue that California must take prudent action to understand, minimize, and allocate wind integration costs. A review of numerous studies suggests that for wind penetration levels below 20%, integration costs should remain modest. However, costs are heavily dependent on market structure, and I suggest numerous ways that California can optimize its market design to manage wind integration costs.


Join Nevada's Newly Formed Networking Group For All Energy Professionals, Nevada Institute for Renewable Energy Commercialization (NIREC) 2012 University of Nevada, Las Vegas

Join Nevada's Newly Formed Networking Group For All Energy Professionals, Nevada Institute For Renewable Energy Commercialization (Nirec)

Nevada Newsflash

“YPE Nevada is designed to engage Nevada’s mid-career energy professionals through a variety of career-related, community service, professional education and social events to be scheduled across the entire state. ” said YPE Nevada Board Member Walt Borland, the President and CEO of NIREC that is sponsoring the launch of the new chapter. “And, we expect that this enhanced interaction will help to drive more energy-related entrepreneurial activity in Nevada.”


Blackstarting The North American Power Grid After A Nuclear Electromagnetic Pulse (Emp) Event Or Major Solar Storm, Joshua Good 2012 James Madison University

Blackstarting The North American Power Grid After A Nuclear Electromagnetic Pulse (Emp) Event Or Major Solar Storm, Joshua Good

Masters Theses, 2010-2019

The electric power grid is our most critical infrastructure. This key resource provides the energy required for all other infrastructures to function. In modern times, electricity has become necessary to sustain life. The power grid in the U.S. is a target for terrorists and is vulnerable to naturally-occurring events. Numerous assessments have been performed on the vulnerability of our national power grid to both manmade and natural events.1 Two significant wide-area threats against our power grid are solar storms and electromagnetic pulse (EMP) attacks. Solar storms are naturally-occurring events that have the potential to create large-scale blackouts that could potentially …


A Business Case For Electric Power Distributors Using Simulation: Investigating The Combined Use Of The Strategies Of Feed-In-Tariffs, Distributed Generation, Time Of Use Rates, And Efficiency, Brooks E. Taylor 2012 James Madison University

A Business Case For Electric Power Distributors Using Simulation: Investigating The Combined Use Of The Strategies Of Feed-In-Tariffs, Distributed Generation, Time Of Use Rates, And Efficiency, Brooks E. Taylor

Masters Theses, 2010-2019

Numerous references found in the academic and trade literature discuss the availability and applicability of certain technologies and policies to allow the U.S. electrical grid to address the future challenges of continued growth and aging infrastructure. However, the existing utility companies seem reluctant to adopt these new measures. This thesis will describe some of these strategies and develop a model using Stella system dynamics software that will explore the potential financial impact to the utilities from using these strategies in combination. The four strategies to be investigated are feed in tariffs, time of use rates, distributed generation, and demand-side energy …


Metocean Data Management And Modeling To Support U.S. Offshore Wind Power Development In The Mid-Atlantic, Whitney Amanda West 2012 James Madison University

Metocean Data Management And Modeling To Support U.S. Offshore Wind Power Development In The Mid-Atlantic, Whitney Amanda West

Masters Theses, 2010-2019

Efforts to encourage more conservative electricity consumption, through public awareness campaigns and government-mandated energy efficiency standards, have consistently been overshadowed by population increase and increased standards of living, leading to higher electricity demand, year after year. Sufficient resources and technology exist to support the development of a robust offshore wind industry to help meet this rising demand, but a number of barriers unique to the U.S. have hindered progress. Addressing many of these obstacles involves resolving uncertainty issues related to development. Not only is there a general lack of data to provide stakeholders, developers, and governing authorities with sufficient information …


Cochrane Resources Proposes To Drill One New Natural Gas Well, The Horse Point Federal Well 12-13, United States Department of the Interior, Bureau of Land Management 2012 Utah State University

Cochrane Resources Proposes To Drill One New Natural Gas Well, The Horse Point Federal Well 12-13, United States Department Of The Interior, Bureau Of Land Management

Environmental Assessments (UT)

This Environmental Assessment (EA) has been prepared to analyze Cochrane Resources proposal to drill one new natural gas well. The access road and pipeline would be within the Horse Point Lease boundary and would not need a right-of-way.


Energy Consumption And Greenhouse Gas Emissions From Commercial And Manufacturing Sectors Specific Studies On Hvac Equipment And Dairy Processing, Aik Jong Tan 2012 University of Arkansas, Fayetteville

Energy Consumption And Greenhouse Gas Emissions From Commercial And Manufacturing Sectors Specific Studies On Hvac Equipment And Dairy Processing, Aik Jong Tan

Graduate Theses and Dissertations

Commercial and manufacturing sectors in United States consumed approximately 50% of the total End use energy in 2010. In 2009, 81.5% of the greenhouse gas (GHG) emitted in the United States was energy related. From the broad aspects of commercial and manufacturing sectors; two relatively narrow and specific topics, commercial building's HVAC equipment and dairy processing were chosen to increase the understanding of the energy use and GHG emission in these two sectors. Few published studies related to these two specific areas are available. The first study in this thesis discussed the energy use and GHG emissions by HVAC equipment …


Environmental Critiques Of Nuclear Energy, William Hummel 2012 Pomona College

Environmental Critiques Of Nuclear Energy, William Hummel

Pomona Senior Theses

This essay identifies and evaluates the most common environmental critiques made against nuclear energy development. Environmentalists articulate four major concerns: the destructive effects and health risks of uranium mining; the dangers posed by radiation releases and meltdowns; the difficult of nuclear waste disposal; and national security concerns, including nuclear weapons proliferation and the possibility of attack or sabotage. By characterizing and describing these concerns, we are better able to decide which problems are most compelling, and suggest possible policy-driven solutions.


Evaluation Of Highly Efficient Distribution Transformer Design And Energy Standards Based On Load, James Sanguinetti 2012 University of Nevada, Las Vegas

Evaluation Of Highly Efficient Distribution Transformer Design And Energy Standards Based On Load, James Sanguinetti

UNLV Theses, Dissertations, Professional Papers, and Capstones

Power distribution transformers have been prevalent in commercial building distribution systems since the inception of modern commercial electricity. Yet as more and more manufactures seek to improve transformer efficiencies by making changes to the design of the transformer itself, a fundamental concept may be overlooked - the impact transformer demand sizing has on power losses. When modern transformers are improperly sized for the application they will be installed for they are not being utilized at their optimum design loading range, which may impact operating efficiency.

This thesis will aim to test and evaluate modern day transformer design coupled with currently …


Improving Efficiency And Capacity Of Hydro-Turbines In The Western United States, Hoover Dam, Jonathan Sanchez 2012 University of Nevada, Las Vegas

Improving Efficiency And Capacity Of Hydro-Turbines In The Western United States, Hoover Dam, Jonathan Sanchez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goal for this thesis is to minimize clearances and tolerances, in order to prevent water leakage. A proper seal on the seal rings does not let excess water flow through the turbine runner, thus conserving more water and wasting less energy. Moreover, water leakage past worn wear plates allows for an extra load for the turbine when operating in condense mode. When the wicket gates are closed, water leakage past worn plates wastes mechanical energy in the water; thus, decreasing the efficiency of the Francis turbine, especially when operating at partial loads. Furthermore, the wicket gates also known as …


Mathematical Modeling Of Fluid Spills In Hydraulically Fractured Well Sites, Oluwafemi Michael Taiwo 2012 University of Arkansas, Fayetteville

Mathematical Modeling Of Fluid Spills In Hydraulically Fractured Well Sites, Oluwafemi Michael Taiwo

Graduate Theses and Dissertations

Improved drilling technology and favorable energy prices have contributed to the rapid pace at which the exploitation of unconventional natural gas is taking place across the United States. As a natural gas well is being drilled, reserve pits are constructed to hold the drilling fluids and other materials returned from the drilling process. These reserve pits can fail, and when they do, plant and animal life of the surrounding area may be adversely affected. This project develops a screening tool for a suitable location for a reserve pit. This work will be a critical piece of the Infrastructure Placement Analysis …


Dynamic Modelling Of Single Phase Grid Connected Photovoltaic System, Gopi Krishna Ari 2012 University of Nevada, Las Vegas

Dynamic Modelling Of Single Phase Grid Connected Photovoltaic System, Gopi Krishna Ari

UNLV Theses, Dissertations, Professional Papers, and Capstones

Grid-connected photovoltaic (PV) power systems have been sustaining an exponential growth rate during the past decade. This steep growth is driven by a growing concern about climate change, the adoption of an aggressive regional renewable portfolio standard, rebates and tax incentives, and reduction in PV system cost. One of the main technical barriers that can ultimately limit further PV penetration is the fast variations in the PV system's output power induced by cloud transients. Such events are known to cause voltage fluctuations which may lead to excessive operations of voltage regulation equipment and light flickering.

Solar irradiance variability, which can …


Buffering Pv Output During Cloud Transients With Energy Storage, Yacouba Moumouni 2012 University of Nevada, Las Vegas

Buffering Pv Output During Cloud Transients With Energy Storage, Yacouba Moumouni

UNLV Theses, Dissertations, Professional Papers, and Capstones

Consideration of the use of the major types of energy storage is attempted in this thesis in order to mitigate the effects of power output transients associated with grid-tied CPV systems due to fast-moving cloud coverage. The approach presented here is to buffer intermittency of CPV output power with an energy storage device (used batteries) purchased cheaply from EV owners or battery leasers. When the CPV is connected to the grid with the proper energy storage, the main goal is to smooth out the intermittent solar power and fluctuant load of the grid with a convenient control strategy. This thesis …


Developing A Simulation Model For Power Demand Control Analysis And Privacy Protection In Smart Grid, Sungchul Lee 2012 University of Nevada, Las Vegas

Developing A Simulation Model For Power Demand Control Analysis And Privacy Protection In Smart Grid, Sungchul Lee

UNLV Theses, Dissertations, Professional Papers, and Capstones

With the growing awareness of the need for Smart Grid, various countries are taking initiatives for developing Smart Grid. However, there is limited research on utilizing Smart Grid for Power Demand Control compared to the other areas such as Smart Grid communication network or renewable energy integration. Therefore, this study attempts to help the current Outage Management System by creating a Simulator that allows an intuitive power demand control analysis. Electrical usage is simulated by taking various inputs including the number of houses, family size, work and life patterns, electrical devices, time, etc. For accurate estimate of family and life …


Identifying Optimal Cellulosic Biomass Feedstock Supply Areas For Potential Biorefineries In Arkansas, Mark Cooper 2012 University of Arkansas, Fayetteville

Identifying Optimal Cellulosic Biomass Feedstock Supply Areas For Potential Biorefineries In Arkansas, Mark Cooper

Graduate Theses and Dissertations

In February 2010, the U.S. Environmental Protection Agency released the revised Renewable Fuel Standard (RFS2), mandating at least 36 billion gallons of renewable fuels to be produced annually in America, and blended into all on/off road, locomotive, and marine gasoline and diesel by the year 2022. America's existing biorefineries fall significantly short of being able to meet this mandate, resulting in the need for rapid expansion in the near future if this goal is to be met. The state of Arkansas has abundant resources to offer the renewable energy industry, if properly utilized. The goal of this thesis is to …


Biological Strategies And Mathematical Approaches For Limiting Bacterial Contaminants And Chemical Pollutants In Bioethanol Fermentations, Alia Chahed Ep Limayem 2012 University of Arkansas, Fayetteville

Biological Strategies And Mathematical Approaches For Limiting Bacterial Contaminants And Chemical Pollutants In Bioethanol Fermentations, Alia Chahed Ep Limayem

Graduate Theses and Dissertations

During the most recent decades increased interest in fuel from biomass in the United States and worldwide has emerged each time petroleum derived-gasoline registered well publicized spikes in price. The willingness of the U.S. government to face the issues of more heavily high-priced foreign oil and climate change has led to more investment on plant-derived sustainable biofuel sources. Biomass derived from corn has become one of the primary feedstocks for bioethanol production for the past several years in the U.S. However, the argument of whether to use food as biofuel has led to a search for alternative non-food sources. Consequently, …


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