Physical Sciences and Mathematics Commons^™

Propagation Characteristics Of Density Currents And Implications To Pollutant Transport In A Stratified Reservoir, Xin Sun, Yan Xu, Tinglin Huang, Xiao Tang

International Conference on Hydroinformatics

With global warming, the frequency and intensity of extreme rainfall events were predicted to change more dramatically in the near future while the amount of total precipitation will change slightly. Large volume of turbid inflow will enter the source water reservoir after a heavy rainfall, and evolve in various types of density currents depending on the density difference between the inflow and background water. Density currents play an important role in the thermal structure and pollutant transport in the reservoir. Understanding the behaviors of density current is fundamental to study the changes of source water quality during the flooding season. …

Potential And Technological Advancement Of Biofuels, Rajee Olaganathan, Fabian Ko Qui Shen, Lim Jun Shen

Publications

This scientific paper examines the feasibility of biofuels as a solution to the world‟s energy crisis. It studies the development of the four different generations of biofuel that have been discerned over the years, determining the pros and cons of each. The paper further investigates the issues concerning each generation, and determines how their successors have solved and improved on those problems. In order to give the reader an unbiased perspective, the paper studies both general advantages and disadvantages that encompasses social, economic and environmental impacts. Research and development on the first two generations of biofuels have matured, and case …

An Empirical Exploration Of The Effects Of Natural Gas Prices On Solar Energy Growth, Jeffrey Walton

Economics Theses

This paper analyzes the relationship between natural gas prices and solar installation in the past ten years. The point is to explain how the fluctuations in natural gas prices have effected solar installation. Briefly, natural gas prices from three to five years ago have a positive coefficient on solar installation in the current period, meaning that as the natural gas price three to five years ago increases, solar installation today increases. In course of the analysis, we find that the Goldilocks theory holds true and a natural gas price range from $4 to $6 leads to the highest level of …

The Energy Basis Of Food Security, Eric Garza

Food Systems Summit 2014

Food security includes elements of food availability, access and use. In the complex system that is our global food system, many variables influence an individual’s ability to achieve food security, but given that many people access food through economic markets food prices have come to be a vital component of food security. Food prices are influenced by many factors, but among these are fuel prices. For the last decade trends in food prices have tracked those of fuel prices consistently, and just as fuel prices have generally increased since 2005 food prices have done the same. Rising and increasingly volatile …

Using Green Building To Mitigate Climate Change In The Twenty-First Century, Lisa Battiste

Honors Theses

The need for green buildings are rapidly becoming more important as the nation faces impending energy crises and the world heats up from the overabundance of greenhouse gases. Buildings in America are one of the largest consumers of energy and one of the greatest contributors to CO2 emissions; more than the total emissions from all the transportation vehicles used every day. By making the construction and use of buildings more resource efficient, this can help alleviate the environmental strain of climate change. Neutralizing or eliminating carbon emissions from building use will significantly reduce the amount of greenhouse gases in the …

Cost Benefit Analysis Of The Keystone Xl Pipeline, Daniel Carr

Honors Theses

The Keystone XL pipeline is one of the most controversial topics in North America over the last five years. The debate is based on the trade‐off between Canadian oil sands as a usable energy resource and the environmental effects associated with the extraction and refining of the oil. The green house gasses emitted from the extraction and refining of oil sands produces several environmental concerns that make the proposed pipeline controversial. On the other hand, Canadian oil companies see a significant benefit from the ability of Canadian oil reaching international markets. TransCanada, a 79.99 percent owner of the pipeline, conducted …

Application Of A High-Performance Optically Enhanced Solar Thermal Collector System, Timothy H. Cameron

Honors Theses

In an effort to make Union College a more environmentally friendly campus, this research project focuses on the application of Union’s liquid-based solar thermal collector system. The motivation for this research project is due to the increasing demand for renewable energy sources in order to decrease our society’s dependence on fossil fuels. The system features nine, 16-tube, evacuated tube solar modules which absorb radiant solar energy from the sun. Through a two loop system, thermal energy is stored in water within two-80 gallon storage tanks. This research project involves the design, construction, and analysis of two applications in order to …

Looking For Small Changes In Heat Capacity Using A Differential Scanning Calorimeter, Will Linthicum

Honors Theses

One of the major difficulties in development of renewable energy is the lack of an adequate and economical means of energy storage. In the case of concentrated solar power a large mass of thermal fluid is required to store a reasonable amount of energy. This is primarily because the fluids tend to have a low specific heat capacity. Formulating composites of these fluids can enhance their specific heat capacity and avails opportunities to make concentrated solar power more attractive. In most cases, the specific heat capacity of composite materials is a weighted average of the individual component heat capacities. This, …

Cztsse Thin Film Solar Cells : Surface Treatments, Chinmay S. Joglekar

Open Access Theses

Chalcopyrite semiconducting materials, specifically CZTS, are a promising alternative to traditional silicon solar cell technology. Because of the high absorption coefficient; films of the order of 1 micrometer thickness are sufficient for the fabrication of solar cells. Liquid based synthesis methods are advantageous because they are easily scalable using the roll to roll manufacturing techniques.

Various treatments are explored in this study to enhance the performance of the selenized CZTS film based solar cells. Thiourea can be used as a sulfur source and can be used to tune band gap of CZTSSe. Bromine etching can be used to manipulate the …

A New Day For Nuclear: The Impact Of Nuclear Energy And Its Effects, Hannah G. Hilliard

Senior Honors Theses

Energy is a resource on which civil society is built. It affects every aspect of life and is vital to the survival of the modern world. This paper explores nuclear power and the effects it has on a national and global scale. The research looks at both the positive and negative aspects of nuclear energy, giving weight to both sides of the argument to present a detailed look at this resource. The research is compiled from a wide range of authors from scientists and nuclear experts to reporters and strategic intelligence agents. A proposed technology for the advancement of nuclear …

Processing And Interpretation Of Illinois Basin Seismic Reflection Data, Katherine M. Gigandet

Browse all Theses and Dissertations

An anonymous oil company released 2D dynamite reflection data from the Illinois basin to be reprocessed and interpreted by Wright State University. The aim of the project is to exhaustively apply different seismic processing methods to the data to determine if any improvement in the imaging and interpretation may be accomplished. The data interpretation procedure convolved extracted wavelets from the final migrated section with reflectivity calculated from well log data provided. Once major formation tops were identified attribute analysis was applied to locate potential oil volumes of interest.

The raw shot records from this impulse data are dominated by guided …

On Target For People And Planet: Setting And Achieving Water-Related Sustainable Development Goals, Julie Van Der Bliek, Peter G. Mccornick, James Clarke

Daugherty Water for Food Global Institute: Faculty Publications

Our specific focus in this book is on securing water for sustainable food production. This links to sustainable water resources management, delivering on the water supply and sanitation requirements and provisioning water for energy and the urban sector. A specific intent is to ensure that the realities in low- and middle-income countries in Africa and Asia are recognized and to provide practical pathways to change that fit these realities and the aspirations of those countries. This will help to prepare for the next step in the SDG [sustainable development goals] process: devolving the SDGs to the national level. It will …

Why Waste The Wind? A Look Into Small Scale Wind Energy, Mitchell Negus, Jon Swanton, Ben Chilcoat, Mark Settembrino

Student Showcase

The human race’s dependence on fossil fuels for energy generation has started to cause major changes in the environment. Climate change is a universal issue and it is evident that our current energy schematic is not sustainable. At the University of Massachusetts, small-scale wind power has the potential to be a key component in UMass’ energy portfolio as the university shifts from reliance on fossil fuels to renewable energy. Strategically placed turbines would produce clean, renewable energy, reduce greenhouse gas emissions, and help to decentralize energy dependence on the Central Heating Plant. Small-scale turbines, like the eddyGT, are tested technologies …

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, …

Local Energy Governance In Vermont: An Analysis Of Energy System Transition Strategies And Actor Capacity, Tarah Rowse

Graduate College Dissertations and Theses

While global, national, and regional efforts to address climate and energy challenges remain essential, local governments and community groups are playing an increasingly stronger and vital role. As an active state in energy system policy, planning and innovation, Vermont offers a testing ground for research into energy governance at the local level. A baseline understanding of the energy planning and energy organizing activities initiated at the local level can support efforts to foster a transition to a sustainable energy system in Vermont. Following an inductive, applied and participatory approach, and grounded in the fields of sustainability transitions, energy planning, and …