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Articles 1 - 26 of 26
Full-Text Articles in Engineering
Determining The Impacts Of Corn Silage Mixing Ratios On Hydrogen Production From Beef Cattle Manure, Katya Faber-Quimby
Determining The Impacts Of Corn Silage Mixing Ratios On Hydrogen Production From Beef Cattle Manure, Katya Faber-Quimby
Honors Theses
With global warming becoming an increasingly serious threat and a growing population requiring additional energy resources, interest in the production of clean energy from the agricultural sector has surged in popularity. Biohydrogen, also known as green hydrogen, is H2 that has been produced using renewable energy, such as from agricultural byproducts or waste materials. It presents a promising alternative to nonrenewable resources due to its high potential for energy storage and lack of carbon emissions when used. Cattle manure has been explored as a resource for the production of biohydrogen. Selecting for hydrogen-producing microbes in the manure serves the …
The Neighborhood As An Energy-Generating Community The Case Of El-Banafseg Residential Neighborhood, East Cairo, Amany G. Micheal Prof., Mona Helmy Dr.
The Neighborhood As An Energy-Generating Community The Case Of El-Banafseg Residential Neighborhood, East Cairo, Amany G. Micheal Prof., Mona Helmy Dr.
Centre for Advanced Materials
Nowadays, energy consumption is a global challenge. This is due to the shortage of several energy sources, and consequently, to their increasing prices. This paper argues that by using an integrative approach for using various energy harvesting techniques, a typical residential neighborhood can be operated as a self-generator of its needed energy, or part of it.
The paper follows a mixed qualitative, experimental, and numerical simulation approaches to examine the practicality of the paper hypothesis. It uses Space syntax modeling theory (a socio-spatial software) to analyze the pedestrian flow to indicate the potential locations of the kinetic energy harvesting Piezoelectric …
Multi-Objective Optimization Of A Microgrid For An Islanded Community, Roozbeh Ghasemi, Martin Wosnik, Weiwei Mo
Multi-Objective Optimization Of A Microgrid For An Islanded Community, Roozbeh Ghasemi, Martin Wosnik, Weiwei Mo
Student Research Projects
Microgrid design for islanded communities is seeing renewed interest due to the increased accessibility of solar, wind, and energy storage technologies. Islanded communities are often economically disadvantaged, which requires cost-effective microgrid designs. This paper investigates the potential to achieve economic and environmental benefits via optimizing the sizing of various components of a renewable energy system. We used Shoals Marine Laboratory on Appledore Island, Maine, USA as a testbed for developing an optimization framework. A system dynamics (SD) model was first developed to simulate the daily operation of the island microgrid system and then the model was calibrated and validated using …
Integrated Processing Of Municipal Solid Waste For Maximizing Waste Reduction, Carbon Recovery And Fuel Production, Kameron J. King
Integrated Processing Of Municipal Solid Waste For Maximizing Waste Reduction, Carbon Recovery And Fuel Production, Kameron J. King
Civil & Environmental Engineering Theses & Dissertations
Nationally and internationally, waste generation is increasing and along with it negative environmental impacts. Many people think waste ends at disposal; however, environmental impacts have already begun. Unfortunately, 50% of waste ends up in a landfill which is the third largest source of human related methane emissions and a leading cause of global climate change. This study investigated a novel waste management strategy in hopes of mitigating negative environmental effects caused by conventional waste management practices. The novelty of the study lies in the development of an integrated method of hydrothermal carbonization and an anaerobic digestion (HTC + AD) process …
Photovoltaic Systems On Dairy Farms: Financial And Renewable Multi-Objective Optimization (Farmoo) Analysis, Michael Breen, J. Upton, Michael D. Murphy
Photovoltaic Systems On Dairy Farms: Financial And Renewable Multi-Objective Optimization (Farmoo) Analysis, Michael Breen, J. Upton, Michael D. Murphy
Publications
No abstract provided.
Electrification Of Domestic Hot Water To Aid The Integration Of Renewable Energy In The California Grid, Alejandro Cervantes
Electrification Of Domestic Hot Water To Aid The Integration Of Renewable Energy In The California Grid, Alejandro Cervantes
Cal Poly Humboldt theses and projects
Water heating in residential buildings, also known as domestic hot water (DHW), is the third largest use of energy after appliances and space conditioning. About 90% of the residential buildings in the state use natural gas fueled water heaters, 6% use electricity, and a small percent use liquefied petroleum gas (LPG) or solar water heaters. The current energy use associated with residential water heating is small relative to the total amount of energy consumption in the residential building sector, but it is still a contributor of greenhouse gas (GHG) emissions. Improving hot water systems can be beneficial for bill customer …
Our Energy Future, Fall/Winter 2007, Issue 15
Renewable Energy, Fall/Winter 2011, Issue 23
Evaluation Of Wind And Solar Energy Investments In Texas, Byungik Chang, Ken Starcher
Evaluation Of Wind And Solar Energy Investments In Texas, Byungik Chang, Ken Starcher
Civil Engineering Faculty Publications
The primary objective of the project is to evaluate the benefits of wind and solar energy and determine economical investment sites for wind and solar energy in Texas with economic parameters including payback periods. A 50 kW wind turbine system and a 42 kW PV system were used to collect field data. Data analysis enabled yearly energy production and payback period of the two systems.
The average payback period of a solar PV system was found to be within a range of 2-20 years because the large range of the payback period for PV systems were heavily influenced by incentives. …
The Heat Is On: The Capacities Required For The Establishment And Sustainability Of Community-Owned Renewable Energy District Heating Systems In Ireland, Gerard Doyle
Reports
International reviews of countries’ progress at tackling climate change show that Ireland is making small levels of progress on tackling issues associated with climate change. This paper will examine a theoretical framework, referred to as capacity analysis, to explain the capacities that need to be in place for the successful implementation of community-owned renewable energy district heating initiatives. The theoretical framework employed here is based on the ‘conceptual framework’ developed by Pringle which consists of four categories of capacity. The research methodology involves a case study with cases from Austria, Northern Ireland, the Republic of Ireland, Wales and Scotland. The …
Techno- Economic Feasibility Study Of Solar Water Pumping For Public Facilities In Nigeria, Anamika Singh
Techno- Economic Feasibility Study Of Solar Water Pumping For Public Facilities In Nigeria, Anamika Singh
Cal Poly Humboldt theses and projects
This thesis presents a techno-economic feasibility analysis of solar water pumping systems in public facilities located in rural parts of Nigeria. Three different public facilities namely, a primary health care center in Ibwa (PHC, Ibwa), a comprehensive health care center in Kwali (CHC, Kwali), and the LEA Primary School in Mapa (LEA School, Mapa), all located in Federal Capital Territory (FCT) of Nigeria, were analyzed. The facilities considered in the study have varying levels of water demand (micro, small, and medium), and they are used as cases to establish the techno-economic suitability of solar water pumping systems to deliver water …
Solar And Rain Catching Canopy. Urban Oasis, Afolabi Ibitoye, Langston Clark, Elena Zimareva, Evan Banks, Alexander Aptekar
Solar And Rain Catching Canopy. Urban Oasis, Afolabi Ibitoye, Langston Clark, Elena Zimareva, Evan Banks, Alexander Aptekar
Publications and Research
The Urban Oasis is designed to work within existing “pocket parks” in New York City as a combined rainwater collector, personal electronics charging station and resting designation for New Yorkers. Intended to not only lessen the demand on the city power grid by using renewable energy to charge devices, the urban oasis is also intended to mitigate grey water overfill in New York’s combined sewer system and, in general, serve as a model for responsible environmental stewardship in urban areas.
The important technical aspects of the canopy specifically analyzed were:
a) how much rainwater could the canopy be expected to …
Optimal Sintering Temperature Of Ceria-Doped Scandia Stabilized Zirconia For Use In Solid Oxide Fuel Cells, Amanda K. Assuncao
Optimal Sintering Temperature Of Ceria-Doped Scandia Stabilized Zirconia For Use In Solid Oxide Fuel Cells, Amanda K. Assuncao
Honors Undergraduate Theses
Carbon emissions are known to cause decay of the Ozone layer in addition to creating pollutant, poisonous air. This has become a growing concern among scientists and engineers across the globe; if this issue is not addressed, it is likely that the Earth will suffer catastrophic consequences. One of the main culprits of these harmful carbon emissions is fuel combustion. Between vehicles, power plants, airplanes, and ships, the world consumes an extraordinary amount of oil and fuel which all contributes to the emissions problem. Therefore, it is crucial to develop alternative energy sources that minimize the impact on the environment. …
A Decision Support Tool For Building Integrated Renewable Energy Microgrids Connected To A Smart Grid, Damilola A. Asaleye, Michael D. Murphy, Michael Breen
A Decision Support Tool For Building Integrated Renewable Energy Microgrids Connected To A Smart Grid, Damilola A. Asaleye, Michael D. Murphy, Michael Breen
Publications
The objective of this study was to create a tool that will enable renewable energy microgrid (REμG) facility users to make informed decisions on the utilization of electrical power output from a building integrated REμG connected to a smart grid. A decision support tool for renewable energy microgrids (DSTREM) capable of predicting photovoltaic array and wind turbine power outputs was developed. The tool simulated users’ daily electricity consumption costs, avoided CO2 emissions and incurred monetary income relative to the usage of the building integrated REμG connected to the national electricity smart grid. DSTREM forecasted climate variables, which were used …
The Technical, Economic, And Environmental Feasibility Of Rice Straw Residue For Biomass Energy Production In India, Gaurav Kumar
The Technical, Economic, And Environmental Feasibility Of Rice Straw Residue For Biomass Energy Production In India, Gaurav Kumar
Cal Poly Humboldt theses and projects
This study assessed the feasibility of mobilizing rice straw (paddy residues) for small scale (250kW) bioenergy applications in India by establishing sustainable residue removal rates and cost of supply values for two production regions (Punjab and Haryana). A key objective was to refine the methodology for estimating costs for collection and transportation of rice straw harvesting for bioenergy use. The delivered cost of rice straw retrieved from one hectare of land and transported 10 km to the power plant has been estimated at INR 2.05 (USD 0.03) per kg. Various technological options have been explored for electricity generation from rice …
Fulfilling The Promise Of The Paris Agreement: The Role Of Efficiency And Renewable Energy, Chuck Kutscher
Fulfilling The Promise Of The Paris Agreement: The Role Of Efficiency And Renewable Energy, Chuck Kutscher
CO2 Summit II: Technologies and Opportunities
Renewable energy, energy policy, energy efficiency, buildings
The rapid large-scale deployment of efficiency and renewable energy technologies is crucial to meeting the goals of the COP21 agreement. Key to achieving this is transitioning to zero-carbon cities comprised of highly efficient buildings powered by renewable electricity. This presentation will survey the current efficiency and renewable energy research underway at the National Renewable Energy Laboratory with special attention paid to zero-carbon buildings and the challenges of developing a renewable energy electric grid.
Improving Flow Distribution In Small-Scale Water-Supply Systems Through The Use Of Flow-Reducing Discs And Methods For Analyzing The Effectiveness Of Solar Powered Pumping For A Drinking Water Supply In Rural Panama, Briana I. Drake
Dissertations, Master's Theses and Master's Reports - Open
As continued global funding and coordination are allocated toward the improvement of access to safe sources of drinking water, alternative solutions may be necessary to expand implementation to remote communities.
This report evaluates two technologies used in a small water distribution system in a mountainous region of Panama; solar powered pumping and flow-reducing discs. The two parts of the system function independently, but were both chosen for their ability to mitigate unique issues in the community. The design program NeatWork and flow-reducing discs were evaluated because they are tools taught to Peace Corps Volunteers in Panama.
Even when ample water …
A Technical And Cultural Feasibility Assessment Of Household Microbial Fuel Cells For Use In Hanan'g District, Tanzania, Erinn Kunik
Dissertations, Master's Theses and Master's Reports
Microbial fuel cells (MFCs) are an emerging electricity generation technology that has the potential for use in developing countries. This study assessed the feasibility of using MFCs in Tanzania through technical analysis of a MFC prototype alongside with interviews with Tanzanians for a cultural feasibility assessment of MFCs. For the technical analysis, this study evaluated the inputs needed for a household MFC to operate and produce electricity with cattle manure as a fuel and evaluated the electrochemical and chemical performance as well as the fecal coliform reduction of the manure during MFC operation. For this study, a MFC was built …
Avoided Water Cost Of Electricity Generation For Solar Pv And Wind Technologies In Southern California, Matthew Cohen
Avoided Water Cost Of Electricity Generation For Solar Pv And Wind Technologies In Southern California, Matthew Cohen
Master's Theses
The objective of this thesis is to provide a foundation for evaluating the water costs associated with electricity production to calculate the avoided water cost of energy for solar PV and wind technologies relative to coal, natural gas, nuclear, geothermal, concentrated solar thermal, and biomass. Water consumption is estimated for energy production (fuel extraction and preparation) and electricity generation (power plant operation) using the best available information from published articles. The quantity of water consumed for electricity production is monetized for a Southern California case study based on the water rates of Metropolitan Water District of Southern California (MET), which …
Regional Integration Of Renewable Energy Systems In Ireland: The Role Of Hybrid Energy Systems For Small Communities, Craig Goodbody, Eileen Walsh, Kevin Mcdonnell, Philip Owende
Regional Integration Of Renewable Energy Systems In Ireland: The Role Of Hybrid Energy Systems For Small Communities, Craig Goodbody, Eileen Walsh, Kevin Mcdonnell, Philip Owende
Articles
Due to a lack of indigenous fossil energy resources, Ireland’s energy supply constantly teeters on the brink of political, geopolitical, and geographical unease. The potential risk to the security of the energy supply combined with the contribution of anthropogenic greenhouse gas emissions to climate change gives a clear indication of Ireland's need to reduce dependency on imported fossil fuels as primary energy source. A feasibility analysis to investigate the available renewable energy options was conducted using HOMER software. The Net Present Cost, the Cost of Energy, and the CO2 emissions of each potential energy combination were considered in determining the …
Investigating The Impacts Of Conventional And Advanced Treatment Technologies On Energy Consumption At Satellite Water Reuse Plants, Jonathan Roy Bailey
Investigating The Impacts Of Conventional And Advanced Treatment Technologies On Energy Consumption At Satellite Water Reuse Plants, Jonathan Roy Bailey
UNLV Theses, Dissertations, Professional Papers, and Capstones
With the ever increasing world population and the resulting increase in industrialization and agricultural practices, depletion of two of the world's most important natural resources, water and fossil fuels, is inevitable. Water reclamation and reuse is the key to protecting these natural resources. Water reclamation using smaller decentralized wastewater treatment plants, known as satellite water reuse plants (WRP), have become popular in the last decade. With stricter standards and regulations on effluent quality and requirements for a smaller land footprint (i.e. real estate area), additional treatment processes and advanced technologies are needed. This greatly increases the energy consumption of an …
Slides: Unido: Partner For Prosperity, Kandeh K. Yumkella
Slides: Unido: Partner For Prosperity, Kandeh K. Yumkella
2012 Energy Justice Conference and Technology Exposition (September 17-18)
Presenter: Dr. Kandeh Yumkella, Chairman, UN Energy; Director General, United Nations Industrial Development Organization (UNIDO)
16 slides
Using Life Cycle Assessment Methods To Guide Architectural Decision-Making For Sustainable Prefabricated Modular Buildings, Jeremy Faludi, Michael Lepech, George Loisos
Using Life Cycle Assessment Methods To Guide Architectural Decision-Making For Sustainable Prefabricated Modular Buildings, Jeremy Faludi, Michael Lepech, George Loisos
Dartmouth Scholarship
Within this work, life cycle assessment modeling is used to determine top design priorities and quantitatively inform sustainable design decision-making for a prefabricated modular building. A case-study life-cycle assessment was performed for a 5,000 ft2 prefabricated commercial building constructed in San Francisco, California, and scenario analysis was run examining the life cycle environmental impacts of various energy and material design substitutions, and a structural design change. Results show that even for a highly energy-efficient modular building, the top design priority is still minimizing operational energy impacts, since this strongly dominates the building life cycle's environmental impacts. However, as an …
Ecological Payback Time Of An Energy-Efficient Modular Building, Jeremy Faludi, Michael Lepech
Ecological Payback Time Of An Energy-Efficient Modular Building, Jeremy Faludi, Michael Lepech
Dartmouth Scholarship
Ecological payback time was calculated for demolishing an existing commercial building with average energy performance and replacing it with an energy-efficient, prefabricated building. A life-cycle assessment was performed for a 5,000 ft2 commercial building designed by Project Frog and prefabricated in San Francisco, California, and compared to the impacts of annual energy consumption and continued status quo operation of a comparable average commercial building. Scenarios were run both with and without rooftop solar panels intended to make the prefabricated building net zero energy. The analysis considers the materials and mof the existing building, compared to continued annual energy use of …
Do Wind Turbines Affect Weather Conditions?: A Case Study In Indiana, Meghan F. Henschen, Brittany Herrholtz, Lacey Rhudy, Kathryn Demchak, Brian Doogs, Joshua Holland, Erik Larson, Johnny Martin, Matthew Rudkin
Do Wind Turbines Affect Weather Conditions?: A Case Study In Indiana, Meghan F. Henschen, Brittany Herrholtz, Lacey Rhudy, Kathryn Demchak, Brian Doogs, Joshua Holland, Erik Larson, Johnny Martin, Matthew Rudkin
The Journal of Purdue Undergraduate Research
Wind turbines are becoming increasingly widespread in the United States as the world looks for cleaner sources of energy. Scientists, policymakers, and citizens have strong opinions regarding the positive and negative effects of wind energy projects, and there is a great deal of misinformation about wind energy circulating on the Web and other media sources. The purpose of this study is to gain a better understanding of how the rotation of hundreds of turbines can influence local weather conditions within a wind farm and in the surrounding areas. This experiment measures temperature, atmospheric pressure, wind speed, wind direction, relative humidity, …
Reflexions On The Use Of Renewable Power Sources And Nuclear Energy In Portugal, João F. Gomes
Reflexions On The Use Of Renewable Power Sources And Nuclear Energy In Portugal, João F. Gomes
João F Gomes
This paper analyses the current energy balance of Portugal, considering the actual sources which are mainly traditional fossil fuels, hydroelectric power and renewables. Other potential sources are discussed also and taken into consideration in view of the previewed evolution of the country in energetic terms. Among these, nuclear power, once regarded as an option, is now being re-considered. This paper also sums up the main issues to be considered in a future debate on the subject.