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Articles 1 - 11 of 11
Full-Text Articles in Energy Systems
A Simplified Thermal And Battery Model For Off-Grid Solar Air Conditioning In Florida’S Hurricane Context, Steven A. Sanford
A Simplified Thermal And Battery Model For Off-Grid Solar Air Conditioning In Florida’S Hurricane Context, Steven A. Sanford
Honors Theses
Florida’s hurricane-prone climate often leaves residents without power and at risk of dangerous indoor heat conditions. This thesis examines whether an off-grid, solar-powered air conditioning system can feasibly maintain safe indoor temperatures over a one-week outage period during peak hurricane season. A simplified, lumped-capacitance thermal model and an energy-based (Coulomb-counting) battery state of charge (SoC) approach were developed in MATLAB to simulate a DC-powered air conditioner (the DC48 unit) in a single-zone space. Historical weather and solar irradiance data from Vero Beach, Florida, represent the hot and humid conditions typical of post-hurricane scenarios. The model uses an on/off plus deadband …
Nuclear Energy As A Reliable And Safe Source Of Power Generation, Sarup Dhungana
Nuclear Energy As A Reliable And Safe Source Of Power Generation, Sarup Dhungana
Honors Theses
There is a high demand of energy for generating civil applicable power in the world and in the USA, correspondingly. The world has been consuming various sources to extract the power to meet its demands. Most of the power sources include renewable and non-renewable sources like fossil fuels, natural gas, coal, water, solar, wind, and nuclear power. Although most of these sources have many advantages in terms of their capacity and cost of production, nuclear power can be categorized as the emerging driving force in the United States and in the world for power generation, because of its reliability and …
Gasification Based Waste Tire Integrated Energy Conversion Systems, Karah Powell
Gasification Based Waste Tire Integrated Energy Conversion Systems, Karah Powell
Honors Theses
The objective of this study was to evaluate the operating parameters impacts on the performance of a gasification-based waste tire integrated energy conversion system. In this system, the waste tires are put into a downdraft gasifier that is providing fuel for a solid oxide fuel cell (SOFC). The system is evaluated by the syngas production, power generation, and overall efficiency under various operating conditions. A hybrid 1-D model was adopted to perform a parametric study of the tire gasification and calculations were done to estimate the integrated system power generation and overall efficiency using MATLAB. Three parameters were studied: the …
Evaluation And Sizing Of Solar Powered Reverse Osmosis Water Desalination System, Sandip Subedi
Evaluation And Sizing Of Solar Powered Reverse Osmosis Water Desalination System, Sandip Subedi
Honors Theses
About 71 % of the surface of Earth is water, out of which around 2.5 % is freshwater. The majority of the surface of Earth is occupied by seawater which also contains dissolved salt. The salt concentration in seawater makes it toxic to humans because the human body is unable to get rid of the salt that comes from seawater. The demand for fresh water is increasing due to the rise in global population. In this context, desalinated seawater is considered as a viable resource to meet the growing demand for fresh water. Desalination process is highly energy intensive due …
Feasibility Study Of Portable Solar Powered Blood Storing Refrigerator, Saroj Subedi
Feasibility Study Of Portable Solar Powered Blood Storing Refrigerator, Saroj Subedi
Honors Theses
This report is focused on the preliminary feasibility of portable solar-powered blood-storing refrigerators primarily based on calculations of energy required to maintain the temperature of the refrigerator, the electricity required throughout the day, calculating sufficiency of power supplied by the solar panel, and selection of battery for power storage. The method and the trend of a feasibility study involve the study of blood properties, separation of blood components after donation, and their storage conditions. Then, the portable size of the refrigeration has been proposed with three different compartments for storage of each blood component. The further methods involve the selection …
Sizing And Economics Of Solar Powered Indoor Swimming Pool, Aman Bhatta
Sizing And Economics Of Solar Powered Indoor Swimming Pool, Aman Bhatta
Honors Theses
With increasing global population and aspiration for higher standards for living, there is a rapid increase in demand for energy. With the concerns of climate change becoming ever more pressing, a shift from the conventional energy source to an alternative green version to meet the energy demand could be of significant interest. A large amount of energy is required to maintain water temperature in the swimming pool at a human comfort temperature. Several studies have been performed to calculate and evaluate the feasibility of powering thermal systems for swimming pools using solar energy. Still, extensive analysis using solar thermal energy …
Parametric Design Of Flywheel For An Electric Punch Press, Prashant Dhakal
Parametric Design Of Flywheel For An Electric Punch Press, Prashant Dhakal
Honors Theses
Almost all designs start with a design requirement. These may be weight, volume, clearance, and even custom calculations. Finding a solution that meets these requirements often involves tedious and time-consuming iterations. Once the solution has been found, the design must be optimized to find the best possible solution. Finding the ‘best possible design’ requires substantial time and effort dedicated to iterating and analyzing the potential model solutions. This is where Parametric design comes into play. The Parametric design aids in specifying the key parameters of the design and makes changes interactively, with the model updating automatically. The purpose of this …
Computational Study On Suppression Of Airfoil Flow Separation Using High-Frequency Translational Surface Actuation, Bibek Gupta
Computational Study On Suppression Of Airfoil Flow Separation Using High-Frequency Translational Surface Actuation, Bibek Gupta
Honors Theses
Flow separation is a phenomenon that occurs when pressure increases in the streamwise direction of a flow, making a distinctive boundary layer or separation bubble. It causes aircraft to experience an increase in drag and noise and a decrease in a lift, hence degrading their aviation performance. This study uses numerical simulations to understand better the effects of high-frequency translational surface actuation (HFTSA) on flow separation control. The numerical simulations mimic the experimental parameters of an experiment performed by Okoye et al. on using the HFTSA system to control flow separation. A symmetrical airfoil structure of chord length of 0.3 …
Least Cost Analysis For Solar Photovoltaic Maintenance Of The Wmu Miller Auditorium Array, Kelsey Pitschel
Least Cost Analysis For Solar Photovoltaic Maintenance Of The Wmu Miller Auditorium Array, Kelsey Pitschel
Honors Theses
The solar photovoltaic array at Miller Auditorium is a 50 kW DC system that has relied on five seasonal angle adjustments and no cleaning measures to reach an average of 64.7 MWh annual energy generation since 2012 1 . This amount of energy generation yields $7,046 in annual energy savings based on current market pricing for end use electricity of $0.1089/kWh 2 . The current adjustment schedule based on seasonal tilts accounts for an annual costs between $760 and $848, but actual adjustments have historically not taken place according to the existing schedule. The analysis focuses on optimizing net energy …
Human-Assisted Fluid Power Vehicle, Aaron Huntoon
Human-Assisted Fluid Power Vehicle, Aaron Huntoon
Honors Theses
The rising cost of energy has prompted industrial and technology companies to research and implement renewable or green energy sources in every aspect of their business. This green technology can consist of sources such as: solar, wind, fluid, or others to create energy from renewable sources. The use of these various sources reduces the pollution associated with standard methods of energy development, and it will ultimately drive costs down to benefit the general population. One of the largest benefactors to the use of renewable energy sources is the transportation industry. Billions of people rely on various modes of transportation every …
Designing An Accessible Hall Effect Thruster, Matthew Baird
Designing An Accessible Hall Effect Thruster, Matthew Baird
Honors Theses
A group of three Mechanical Engineering students have selected to design a 200 W Hall Effect Thruster to fulfill the Mechanical and Aeronautical Engineering senior design project. Preliminary studies were performed on the theory behind electric propulsion and plasma physics. The group designed the Western Hall Thruster and used COMSOL Multiphysics® simulation software to refine the magnetic circuit. The group then fabricated and performed magnetic testing of their thruster in Western Michigan University’s Aerospace Laboratory for Plasma Experiments. This testing will seek to prove that a standard research HET can be built by universities without substantial financial resources.