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Articles 1 - 16 of 16

Full-Text Articles in Mechanical Engineering

The Effect Of Flinak Molten Salt Corrosion On The Hardness Of Hastelloy N, David Kok Apr 2019

The Effect Of Flinak Molten Salt Corrosion On The Hardness Of Hastelloy N, David Kok

Scholar Week 2016 - present

The Molten Salt Reactor (MSR) has been identified as a promising candidate to replace aging nuclear reactors around the world. However, a suitable combination of molten salt and container material needs to be found in order to reduce the potential for corrosion in the MSR before it can be considered commercially viable. FLiNaK molten salt and the nickel-based alloy Hastelloy N have been identified as prime candidates for this function, but the severity of FLiNaK corrosion in Hastelloy N requires additional study before this combination can be used in the operation of a MSR. In this study, Hastelloy N samples ...


Performance Analysis Of An Exhaust Heat Recovery System Utilizing Heat Pipes, Metal Foam, And Thermoelectric Generators, Michael Resciniti Apr 2019

Performance Analysis Of An Exhaust Heat Recovery System Utilizing Heat Pipes, Metal Foam, And Thermoelectric Generators, Michael Resciniti

Scholar Week 2016 - present

This paper highlights a new type of modified heat pipe assisted thermoelectric generator system for automobile exhaust waste heat recovery. This system employs the use of metal foam as a heat transfer aid to increase the thermal energy transferred through the system. In this system, heat pipes are inserted into a metal foam block that is exposed to the exhaust gas stream. The metal foam increases heat transfer in a similar way that fins increase heat transfer. To confirm that this system provides a greater conversion of thermal energy, an experimental prototype was built and tested. Tests were conducted with ...


Fluid Power Vehicle Competition, Madison Graham, Wayne Ritchie, Emily Dicks, Ariana Cupello Jan 2019

Fluid Power Vehicle Competition, Madison Graham, Wayne Ritchie, Emily Dicks, Ariana Cupello

Williams Honors College, Honors Research Projects

Our senior design project for the Honors College and the Department of Mechanical Engineering was to design a fluid powered vehicle. Our design was tested in an official capacity against other universities’ vehicles at the Fluid Powered Vehicle Challenge hosted and funded by the National Fluid Power Association (NFPA) and its industry partners. This competition had six different evaluations for our vehicle design; three race events, midway presentation, final presentation, and safety inspection. The three different race events were the sprint race, the efficiency race, and the endurance race. The sprint race was a 475 feet speed test, the efficiency ...


Progress In Micro-Layered Fast Neutron Detectors, Priyarshini Ghosh, W. Fu, Mark J. Harrison, Patrick K. Doyle, Jeremy A. Roberts, D. S. Mcgregor Dec 2018

Progress In Micro-Layered Fast Neutron Detectors, Priyarshini Ghosh, W. Fu, Mark J. Harrison, Patrick K. Doyle, Jeremy A. Roberts, D. S. Mcgregor

Symposium on Advanced Sensors and Modeling Techniques for Nuclear Reactor Safety

The study of accident tolerant fuels is ongoing at the Transient Reactor Test Facility (TREAT) at Idaho National Laboratory. The TREAT Facility provides quick, high-energy neutron pulses that simulate various accident conditions. These neutron pulses are presently detected using an array of fast-neutron detectors called Hornyak buttons. Hornyak buttons suffer from poor detection efficiency and significant Ĉerenkov radiation contamination in the signal. A new enabling technology, the micro-layered fast-neutron detector (MLFD), is presented to monitor neutron flux changes during mild-to-severe reactor accidents. The MLFD was designed to overcome the shortcomings of the Hornyak buttons and to improve detection efficiency. The ...


Automated Recognition Of Corn Embryos For Selective Breeding, Tanner Holte Apr 2017

Automated Recognition Of Corn Embryos For Selective Breeding, Tanner Holte

Symposium on Undergraduate Research and Creative Expression

An analysis of a kernel of corn is essential to determining its worth for selective breeding. The embryo found in a kernel of corn is what is used to produce oils, and therefore maximizing its size would make a farmer's yield more efficient. The current method of recording the area of the corn's embryo, however, is to take measurements by hand. This project seeks to provide a solution by developing a program that can recognize and mark the embryo on a picture of a kernel of corn without needing guidance. The program will be taught to recognize patterns ...


Investigating The Kinetics Of Protein-Ligand Complexes Using Electrochemical Techniques, Marcos Cortes Apr 2017

Investigating The Kinetics Of Protein-Ligand Complexes Using Electrochemical Techniques, Marcos Cortes

Symposium on Undergraduate Research and Creative Expression

The rate of association/dissociation for a protein-ligand complex is measured by taking thrombin and its aptamer as a model system. Thrombin and its DNA aptamer (a synthetic nucleic acid) form a very stable complex. In our experiment, we first immobilize thrombin on an activated gold slide through covalent bonding. Afterwards, it is treated with the aptamer to form the complex. Then the gold slide is made into a working electrode in a custom designed three-electrode electrochemical cell with a suitable electrolyte. The flow of electrolyte charges is then monitored by using a potentiostat, against the introduction of different concentrations ...


Machine Learning Approaches For Tassel Identification, Joe Van Treeck Apr 2017

Machine Learning Approaches For Tassel Identification, Joe Van Treeck

Symposium on Undergraduate Research and Creative Expression

The tassel, the part of the corn plant containing the pollen, is affected by many factors in a complex manor. Furthermore, different genotypes of corn will react differently to their environment, releasing the pollen to fertilize other corn plants when conditions align. In order to advance efforts in plant breeding, it is important to understand the factors affecting the production and release of pollen, and how these factors interact with different genotypes. In this project we will develop a system for automated field-based phenotyping. We will design and implement a convolutional neural network that takes an input of thousands of ...


Towards Nondestructive Evaluation Of Cross-Linked Polyethylene (Xlpe) Insulation Material In Nuclear Power Plant Cables, Michael Byler Apr 2017

Towards Nondestructive Evaluation Of Cross-Linked Polyethylene (Xlpe) Insulation Material In Nuclear Power Plant Cables, Michael Byler

Symposium on Undergraduate Research and Creative Expression

This talk describes mechanical and electrical properties of cross-linked polyethylene (XLPE) after it is aged both thermally and with gamma radiation. XLPE is commonly used as insulation in nuclear power plant (NPP) cables; as US nuclear power plants reach their initial design life of 40 years, suitable testing methods must be developed to determine the integrity of XLPE insulation. Presently, the end-of-useful life of a cable insulation material is defined when its elongation-at-break (EAB) or breaking strain is reduced to 50 % of its initial value. To develop nondestructive methods of evaluating end-of-useful life, it is useful to seek correlations between ...


Effects Of Confinement Geometry On Diblock Copolymer Systems Using Finite Element Analysis, Jonathan Green Apr 2017

Effects Of Confinement Geometry On Diblock Copolymer Systems Using Finite Element Analysis, Jonathan Green

Symposium on Undergraduate Research and Creative Expression

Diblock copolymers have received much attention in recent years due to the unique, highly ordered microstructures they form. Potential applications of diblock copolymers include nanowire fabrication, organic electronics, and nanolithography. The formation of microstructures in a bulk system depends on the composition of the block copolymer and the strength of the interaction force that leads to self segregation. The addition of geometric confinement leads to a wider variety of structures compared to a bulk system. These structures depend on the geometry of the confinement, e.g the walls of a nanopore, and the strength of the interaction between the pore ...


A Methodology For Imaging Soybean Leaf Trichome Characteristics, Jocelyn Jackson Apr 2017

A Methodology For Imaging Soybean Leaf Trichome Characteristics, Jocelyn Jackson

Symposium on Undergraduate Research and Creative Expression

The research involved measuring the wettability in respect to trichrome density amongst 10 soybean leaf genotypes. Trichomes are fine outgrowths on plants that attract pests and provide protection for their habitation, which leads to soybean leaf damage. Therefore, trichome density is an important factor that contributes to soybean yield. Trichome densities of different soybean leaf genotypes were compared and the results gave insight to which genotypes could be more likely to repel pests and water. A chemical leaf clearing process and digital image enhancements allowed for the capturing of images that better exposed leaf trichomes for imaging. The amount of ...


Epics Torch, Madi Rogers, George Townsend, Brandon Henman, Holly Gregory, Patrick Leal, Brennan Mcpherron, Xinyue Pan Mar 2016

Epics Torch, Madi Rogers, George Townsend, Brandon Henman, Holly Gregory, Patrick Leal, Brennan Mcpherron, Xinyue Pan

Engagement & Service-Learning Summit: Connecting Through Listening & Scholarship

The Indiana Bicentennial Commission (IBC) was created by former governor Mitch Daniels to plan and execute a statewide celebration of Indiana’s 200th birthday in 2016. The commission has requested that researchers at Purdue University develop a high-tech Indiana-made flame torch a la the Olympic torch to be used in the celebration and displayed throughout all 92 counties of the state. In addition, the IBC requested that Purdue’s EPICS program develop a kid-friendly torch that can be used alongside the actual torch in relays, celebrations, and community outreach events throughout the state.

By collaborating with Purdue researchers throughout a ...


Learning To Learn: Embedding Peer Support As A Core Learning Skill At Third Level, Philip Russell Jun 2015

Learning To Learn: Embedding Peer Support As A Core Learning Skill At Third Level, Philip Russell

Philip Russell

This paper presents an overview of the Peer Learning Support Programme which has been developed by Mechanical Engineering staff and librarians at the Institute of Technology Tallaght in support of the Institute's Learning to Learn at Third Level module.


Design And Implementation Of An Interactive Animatronic System For Guest Response Analysis, Brian Burns Jun 2015

Design And Implementation Of An Interactive Animatronic System For Guest Response Analysis, Brian Burns

Phi Kappa Phi Research Symposium

In theme park based entertainment applications, there is a need for interactive, autonomous animatronic systems to create engaging and compelling experiences for the guests. The animatronic figures must identify the guests and recognize their status in dynamic interactions for enhanced acceptance and effectiveness as socially interactive agents, in the general framework of human-robot interactions. The design and implementation of an interactive, autonomous animatronic system in form of a tabletop dragon, Kronos, and the comparisons of guest responses in its passive and interactive modes are presented in this work. The dragon capabilities include a four degrees-of-freedom head, moving wings, tail, jaw ...


Merrill-Cazier Library Gas Exhibition, Betty Rozum, Andrew Wesolek, Pamela N. Martin Dec 2012

Merrill-Cazier Library Gas Exhibition, Betty Rozum, Andrew Wesolek, Pamela N. Martin

Andrew Wesolek

This exhibition, presented in the Merrill-Cazier Library, captured the history and accomplishments of the GAS program. Click the download button to see a PowerPoint presentation featuring images and text from the exhibition.


Merrill-Cazier Library Gas Exhibition, Betty Rozum, Andrew Wesolek, Pamela N. Martin Jul 2012

Merrill-Cazier Library Gas Exhibition, Betty Rozum, Andrew Wesolek, Pamela N. Martin

Education and Outreach

This exhibition, presented in the Merrill-Cazier Library, captured the history and accomplishments of the GAS program. Click the download button to see a PowerPoint presentation featuring images and text from the exhibition.


Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Microgravity, Troy Munro, Andrew Fassman Mar 2011

Surface Geometry And Heat Flux Effect On Thin Wire Nucleate Pool Boiling Of Subcooled Water In Microgravity, Troy Munro, Andrew Fassman

Presentations

The motivation of this nucleate boiling research is to understand the effects of surface geometry and heat flux as applied to a thin wire heater. This will further the understanding of the fundamental behaviors of boiling onset, steady state heat transfer, and bubble dynamics with respect to nucleate boiling with the goal of creating efficient thermal management systems for future space applications. Using three different thin platinum wire geometries and five different power levels, subcooled water was boiled over a period of approximately 30 seconds for 15 parabolic arcs to simulate microgravity. To represent the trends in bubbles behavior across ...