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Articles 1 - 11 of 11
Full-Text Articles in Engineering
Design Of A Gas Conditioning System For The Second Generation Union College Areogel Lab Catalytic Test Bed, Thomas Swanton
Design Of A Gas Conditioning System For The Second Generation Union College Areogel Lab Catalytic Test Bed, Thomas Swanton
Honors Theses
The goal of this project was to design and fabricate a system which could deliver artificially created test gas to the heating section at a specified composition, flow rate, and humidity, while additionally simulating the transient conditions found in automobile exhaust. It will make up one subsystem of the Union College Aerogel Lab’s second generation catalytic test bed. The test bed will be used to test the viability of catalytic aerogels as three way catalysts for automotive exhaust. To date a system for mixing test based on partial pressure has been fabricated and is operational, a system for generating transient …
Control System For A Doubly Fed Induction Generator, Nathan Haines
Control System For A Doubly Fed Induction Generator, Nathan Haines
Honors Theses
Doubly Fed Induction Generators (DFIGs) are typically used in large scale (three to five Megawatt) wind turbines because they can be operated over a wide range of wind speeds, have flexible control systems, power electronics need only pass about 30% of the generator power, and the windmill experiences fewer mechanical stresses. This project is to construct the control system for a DFIG. This control system will be used to test the feasibility of using a DFIG on a small-scale wind turbine. Testing confirms that the DFIG delivers power over a wider range of simulated wind speed than a standard induction …
History Of Concussion Research In American Football, Timothy Hersey
History Of Concussion Research In American Football, Timothy Hersey
Honors Theses
Concussions have been the topic of discussion in the news and media in recent years for their profound impact on today’s sport industry. Athletes have become bigger, faster, and stronger then in the past, increasing the chance of injury. This can been seen in all sports. Contact sports specifically have seen a rise in mild traumatic brain injuries (MTBIs) over the years. Extensive research has been done to determine the causes of concussion, the short and long term effects of brain injury, and better ways to reduce the risk in sports. Concussion research in athletics has mainly focused on American …
Maximum Power Point Tracking Device For A Photovoltaic Panel, Betsy Schwartz
Maximum Power Point Tracking Device For A Photovoltaic Panel, Betsy Schwartz
Honors Theses
The operating characteristics of a photovoltaic (PV) solar panel are dependent upon the lighting and temperature conditions, as well as the characteristics of the energy storage device and/or loads that it feeds. PV panels normally operate at a fixed voltage and current for a given load and sunlight condition. The operating conditions will not necessarily produce the maximum possible power output of a solar panel for the set conditions. The efficiency of power delivery from a PV panel can be greatly increased by a Maximum Power Point Tracker (MPPT). An algorithm can be designed to shift the operating value to …
Designing A Self-Powered Device To Aid In Fencing Training And Scoring, Zak Smolen
Designing A Self-Powered Device To Aid In Fencing Training And Scoring, Zak Smolen
Honors Theses
The purpose of this project is to redesign a currently available electric training tool for the sport of fencing in order to fix several existing faults such as cost and power use. The second stage of this project uses this new low-power design to explore small-scale energy harvesting by integrating a charging mechanism into the device to generate power from the movements of the fencer. This goal of this project is to research and explore modern low-power device design, at both the hardware and software levels, and then to apply those techniques to improve a real-world product. The final result …
Analysis Of Degenerative Cervical Spondylolisthesis And Corrective Orthopaedic Implants, Tyler Heck
Analysis Of Degenerative Cervical Spondylolisthesis And Corrective Orthopaedic Implants, Tyler Heck
Honors Theses
Back pain is often due to the degeneration of intervertebral discs, which can lead to a condition known as spondylolisthesis, whereby a vertebra slips out of position in the anteroposterior direction. There are numerous orthopaedic implants which are used by surgeons to correct this condition; however, there has been no conclusive research conducted in comparing the efficacies of these implants. In the cervical spine, this condition most commonly occurs over two levels. For the purposes of this study, an implant’s efficacy depends on its ability to return the slipped vertebra back into natural position immediately after surgery. To test these …
16th Annual Sampe Student Bridge Contest: Design Of A Wood Core Flax Fiber-Reinforced Composite I-Beam, Robert J. Wagner
16th Annual Sampe Student Bridge Contest: Design Of A Wood Core Flax Fiber-Reinforced Composite I-Beam, Robert J. Wagner
Honors Theses
The goal of this project was to demonstrate the applicability of natural composites in structural applications for objects with shorter intended life spans such as sports equipment. This was done by competing in the 16th Annual SAMPE Student Bridge Contest with a natural fiber, natural core composite I-beam in Long Beach, California on May 8th, 2013. The beam was to withstand 3,000 lbs under three-point-bending while maintaining a low weight. In order to compete, natural reinforcement fibers, natural core materials and a bonding matrix had to be identified; a beam within allowable contest dimensions had to be designed; and a …
Measurement Of Skin Friction Drag On Hydrophobic Silica Aerogel Surfaces With Potential Application To Technical Swimsuit Design, Matthew R. Wahl
Measurement Of Skin Friction Drag On Hydrophobic Silica Aerogel Surfaces With Potential Application To Technical Swimsuit Design, Matthew R. Wahl
Honors Theses
The goal of this project was to fabricate and test a prototype technical swimsuit (low-drag suit worn by swimmers in their most important races) that utilized the hydrophobic properties of silica aerogels. This process involved coating a preexisting suit with aerogel material and completing the build of the newly redesigned water channel at Union College. To evaluate performance of materials, surface drag testing of airfoils coated in aerogel materials was performed using a dynamometer in the water channel. Several additions were made to the water channel in order to reduce variation in drag results. Variation was successfully decreased from 134% …
Studying The Material Properties Of The Embryonic Chicken Heart, Kyra Burnett
Studying The Material Properties Of The Embryonic Chicken Heart, Kyra Burnett
Honors Theses
Congenital heart disease is the number one cause of birth defects in the United States, affecting approximately 40,000 newborns each year. Research has shown that serious structural defects of the heart can occur due to abnormal looping. Looping refers to the positional and morphological changes of the early embryo heart and is divided into different phases. Although progress has been made in identifying the genetic processes behind heart looping, the forces involved with the developmental process are still not fully understood. In this research, the chicken embryo heart was used as the experimental model and certain material properties were characterized. …
The Design Of A Maneuverable Rolling Robot, David Carabis
The Design Of A Maneuverable Rolling Robot, David Carabis
Honors Theses
The purpose of this project was to design, fabricate, and test a maneuverable rolling robot. Although some other rolling robots were researched for this project, a novel approach was taken to design a unique, cheap robot that could turn and was fully enclosed by a rotating outer shell. The design and research phase of this project included the evaluation of several designs, the development of a mathematical model detailing forward motion of the robot, and the derivation of several design equations. Of the possible designs, an interior counterweight was chosen to provide a torque to the outside shell and move …
Development And Validation Of A Computational Model For Studying Secondary Droplet Breakup In Time-Varying Flows, Brandan A. West
Development And Validation Of A Computational Model For Studying Secondary Droplet Breakup In Time-Varying Flows, Brandan A. West
Honors Theses
Secondary droplet breakup is an important topic in fluid mechanics that has applications in many atomization processes. To date, the experimental and computational research of secondary droplet breakup has focused primarily on the breakup process in flows that have steady velocities. This study utilizes computational fluid dynamics software called Star-CCM+ Version 7.04.006 to study the effects of time-varying flows on the droplet breakup process. Time-varying flows are more representative than steady flows are of the flow situations in combustion chambers of high-level engines such as jet and rocket engines. Weber number is the ratio of the external flow’s inertial forces …