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Determining Energy Output In Manual And Automated Solar Arrays, James K. Ayres 2016 University of Tennessee at Chattanooga

Determining Energy Output In Manual And Automated Solar Arrays, James K. Ayres

Honors Theses

The scope for the project was to design and construct a system that could be used to both manually and automatically track the sun using solar panels to demonstrate engineering principles for classroom and laboratory experiments at both the primary and secondary education levels. For ease of demonstration, a manual and automatic tracker was designed for the experiment. Using a standard camera tripod, the solar panels were attached to fabricated mounts to allow for omnidirectional movement. For the automated, or active tracker, an Ardunio Uno microcontroller was used in conjunction with two 180˚ servos to adjust the active tracker solar ...


Operational Vulnerability Of The High Speed Rail Infrastructure In Malaysia From Climate Change Risks, Sazrul Leena Binti Sa’adin, Sakdirat Kaewunruen, David Jaroszweski 2016 Department of Public Works, Ministry of Interior, Kuala Lumpur, Malaysia

Operational Vulnerability Of The High Speed Rail Infrastructure In Malaysia From Climate Change Risks, Sazrul Leena Binti Sa’Adin, Sakdirat Kaewunruen, David Jaroszweski

Sakdirat Kaewunruen

Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. Globally the atmosphere and ocean has increasingly getting warmer, the amount of ice on the earth is decreasing, and sea level has risen. The current railway network in Malaysia, over the last decade, has been significantly affected by severe weather conditions such as rainfall, lightning, wind and very high temperatures. These extremes can lead to asset system failure, degraded operation and ultimately, delays to train services. Thus to avoid those disaster happen, such resilience infrastructure is a vital ...


Safety-Based Maintenance For Geometry Restoration Of Railway Turnout Systems In Various Operational Environments, Muhammad Fitri Ishak, Serdar Dindar, Sakdirat Kaewunruen 2016 KERETAPI TANAH MELAYU BERHAD (KTMB)

Safety-Based Maintenance For Geometry Restoration Of Railway Turnout Systems In Various Operational Environments, Muhammad Fitri Ishak, Serdar Dindar, Sakdirat Kaewunruen

Sakdirat Kaewunruen

Turnout system is one of the most critical infrastructures in the railway operations. As high demand in railway operation, the railway operators have to increase the axle load, traffic density and speed of the operation. These would be able to give high impact to the turnout system as increasing the vibration level and noise when the rolling stock crossing the turnout. Therefore, any failure in turnout system can cause negative impact to the operation in scope of maintenance cost and catastrophic consequence effect from the failure could happen such as major derailment. Safety-based maintenance (SBM) approach is an effective maintenance ...


Full Virtual Reality Vs. Integrated Virtual Reality Training In Welding, Richard T. Stone, Elease McLaurin, Peihan Zhong, Kristopher Patrick Watts 2016 Iowa State University

Full Virtual Reality Vs. Integrated Virtual Reality Training In Welding, Richard T. Stone, Elease Mclaurin, Peihan Zhong, Kristopher Patrick Watts

Richard T. Stone Ph.D.

This study demonstrates that both fully virtual and virtual reality (VR) integrated into real-world training programs are appropriate for use in the domain of welding training, depending on the level of task difficulty. Performance differences were virtually indistinguishable between participants in the fully virtual and the integrated training group at the low and medium weld difficulty levels. At the highest level of difficulty, it became apparent that the VR system was no longer solely sufficient for training. This study also tracked the usage patterns for the visual aids used in the VR simulator. These optional aids were presented to the ...


Large Length Scale Capillary Fluidics: From Jumping Bubbles To Drinking In Space, Andrew Paul Wollman 2016 Portland State University

Large Length Scale Capillary Fluidics: From Jumping Bubbles To Drinking In Space, Andrew Paul Wollman

Dissertations and Theses

In orbit, finding the "bottom" of your coffee cup is a non-trivial task. Subtle forces often masked by gravity influence the containment and transport of fluids aboard spacecraft, often in surprising non-intuitive ways. Terrestrial experience with capillary forces is typically relegated to the micro-scale, but engineering community exposure to large length scale capillary fluidics critical to spacecraft fluid management design is low indeed. Low-cost drop towers and fast-to-flight International Space Station (ISS) experiments are increasing designer exposure to this fresh field of study. This work first provides a wide variety of drop tower tests that demonstrate fundamental and applied capillary ...


Me 350 Air Conditioning Experiment, Joshua Baida, Ellie Hallner, Tyler Eschenbach 2016 California Polytechnic State University, San Luis Obispo

Me 350 Air Conditioning Experiment, Joshua Baida, Ellie Hallner, Tyler Eschenbach

Mechanical Engineering

In keeping with Cal Poly's focus on physically applying the concepts learned in the classroom, our team of engineering students has compiled a laboratory experiment displaying the basic thermodynamic cycle found in air conditioning systems. This vapor compression cycle is displayed on a visualization board that features all four major components of the system: the compressor, the evaporator, the condenser, and the throttling valve. Students will take measurements of temperature and pressure at each stage in the cycle and also gauge the power draw from the compressor to gain an understanding of how performance and electricity cost come into ...


Improvement Of Mounting Techniques For Accelerated Wear Testing Of Artificial Heart Valves, Kyle Koon, Clay Bougher, Lawrence Yang 2016 California Polytechnic State University, San Luis Obispo

Improvement Of Mounting Techniques For Accelerated Wear Testing Of Artificial Heart Valves, Kyle Koon, Clay Bougher, Lawrence Yang

Mechanical Engineering

Confidential


Non-Puncturing, No Slip Thv Leaflet Gripper, Brooks Kelly, Eric Nagaoka, Johnny Phane 2016 California Polytechnic State University, San Luis Obispo

Non-Puncturing, No Slip Thv Leaflet Gripper, Brooks Kelly, Eric Nagaoka, Johnny Phane

Mechanical Engineering

Confidential


Variable Electron Applicator, Alex Choi, Jacqueline Dulken, Gabriel Kardener, Nelson Lin 2016 California Polytechnic State University, San Luis Obispo

Variable Electron Applicator, Alex Choi, Jacqueline Dulken, Gabriel Kardener, Nelson Lin

Mechanical Engineering

No abstract provided.


Fluid Analysis In Solar Heat Pipes, Ben Krumholz, Michael Agavo, William Dundon 2016 California Polytechnic State University, San Luis Obispo

Fluid Analysis In Solar Heat Pipes, Ben Krumholz, Michael Agavo, William Dundon

Mechanical Engineering

Evacuated tube solar collectors are efficient systems that use heat pipes to facilitate heat transfer. They use incoming solar radiation to heat water. Professor Mason Medizade tasked the team with choosing a component of the system to research and test its influence on system performance. The team investigated the working fluid that runs through the heat pipes. Distilled water, acetone, and ethanol at a range of fill volumes form 1 mL to 11 mL were tested. The team's goal was to find a volume for each fluid to maximize performance of the system. Performance was defined as average temperature ...


Disc Brake Energy Conversion, D. Coleman Badgley, Jeffrey W. Powell 2016 California Polytechnic State University, San Luis Obispo

Disc Brake Energy Conversion, D. Coleman Badgley, Jeffrey W. Powell

Mechanical Engineering

The original goal of this project was to complete the design and building of a disc brake energy conversion project started by a former senior project team, and then spend a majority of the year performing testing in order to see if the device could be used to accurately calculate the Joule's constant. However, due to unforeseen complications and obstacles, the design and manufacturing portion of the project ended up taking much longer than anticipated. A majority of this time was spent designing the hydraulic plumbing system that would actuate the brakes. The previous team purchased some hydraulic parts ...


4th And 5th Axis Rotary Table, Dakota Bass, Ricky Riedl, Nicole Slagle, Irene Yee 2016 California Polytechnic State University, San Luis Obispo

4th And 5th Axis Rotary Table, Dakota Bass, Ricky Riedl, Nicole Slagle, Irene Yee

Mechanical Engineering

No abstract provided.


Inclusive Lectern, Trent Canales, Sean Day, Dyaln Sigley, Stephen Sippel 2016 California Polytechnic State University, San Luis Obispo

Inclusive Lectern, Trent Canales, Sean Day, Dyaln Sigley, Stephen Sippel

Mechanical Engineering

A lectern is an essential piece of equipment for almost all speeches and presentations. They come in many forms and range in degree of professionalism depending on the occasion. Lecterns not only hold a presenter’s notes, a microphone, or other presentation aids, they provide a structure for a presenter that can bolster their confidence during a presentation. As such, it is important that all presenters have a lectern available to them. Unfortunately this is not always the case due to lectern accessibility limitations. This problem inspired the Cal Poly Disability Resource Center to request a lectern that satisfies the ...


Solar Turbines Compressor Blade Installation Tools, Ryan Bruce, Carolyn Honeycutt, Stephen Oltrogge, Emmett Ross 2016 California Polytechnic State University, San Luis Obispo

Solar Turbines Compressor Blade Installation Tools, Ryan Bruce, Carolyn Honeycutt, Stephen Oltrogge, Emmett Ross

Mechanical Engineering

The following report documents a California Polytechnic State University, Mechanical Engineering Senior Project sponsored by the gas turbine manufacturer, Solar Turbines. The senior project team consisted of four senior mechanical engineering students at Cal Poly, all with general concentrations; Ryan Bruce, Carolyn Honeycutt, Steve Oltrogge, and Emmett Ross. Kenneth Thomas sponsored the group and serves as the point of contact between the senior project team and Solar Turbines. He is a member of the Solar Turbines Mechanical Design Engineering Team and a Cal Poly graduate. Christoph Maurer served as the project team’s on-campus advisor.

A gas turbine uses internal ...


Wind Tunnel Wheel Balance, Brady Hiob, Ryan Hamamura, Samuel Fleet 2016 California Polytechnic State University, San Luis Obispo

Wind Tunnel Wheel Balance, Brady Hiob, Ryan Hamamura, Samuel Fleet

Mechanical Engineering

No abstract provided.


Cp Ev Dynamics, Steven Montevideo, Ashlie Reott, L. Carter Price 2016 California Polytechnic State University, San Luis Obispo

Cp Ev Dynamics, Steven Montevideo, Ashlie Reott, L. Carter Price

Mechanical Engineering

No abstract provided.


Ancillary Attachment Methods, Creed Borden, Mickey Mackle, Thomas Tolley 2016 California Polytechnic State University, San Luis Obispo

Ancillary Attachment Methods, Creed Borden, Mickey Mackle, Thomas Tolley

Mechanical Engineering

No abstract provided.


Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai 2016 California Polytechnic State University – San Luis Obispo

Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai

Mechanical Engineering

A team of four senior-level undergraduate students in the Interdisciplinary Senior Project Design course in the Engineering Department of California Polytechnic State University: San Luis Obispo have worked to develop a prosthetic socket cooling system, namely for veteran Taylor Morris and exclusively for a transfemoral prosthetic socket, under the Quality of Life+ Laboratory. This cooling system will utilize the thermoelectric effect known as the Peltier effect to transmit heat generated from the residual limb to the surrounding environment by means of forced convection over small aluminum heat sinks. Two measurement devices have also been developed to, one, measure the heat ...


Metals Am Design For Manufacturing, Maren Cosens, Ben Wong, Kevin Hale 2016 California Polytechnic State University, San Luis Obispo

Metals Am Design For Manufacturing, Maren Cosens, Ben Wong, Kevin Hale

Mechanical Engineering

We are looking to improve upon the current post processing techniques for metal additive manufacturing (AM). This project, sponsored by Lawrence Livermore National Laboratory (LLNL), will investigate ways to improve the design of stainless steel 316 parts made by AM, and how these designs will help with post processing techniques. We hope that the findings regarding stainless steel will apply to to improve the AM and post processing handshake in general. In particular, the project will focus on including different features in different basic part design shapes to aid in fixturing and post-processing of the part made by AM. This ...


Efficiency Testing Of An Electronic Speed Controller, Grace Cowell, Matthew Hudson, Marcus Pereira 2016 California Polytechnic State University, San Luis Obispo

Efficiency Testing Of An Electronic Speed Controller, Grace Cowell, Matthew Hudson, Marcus Pereira

Mechanical Engineering

This project required the development of a rig that could experimentally determine the efficiency of an Electronic Speed Controller (ESC). The selected design focuses on measuring the losses due to heat from the device and comparing this to its input power. The selected design is a flow rig that utilizes the heat equation q=ṁcpΔT. The rig provides a steady state measurement of the ESC heat output by passing a known mass flow rate of air across the ESC and measuring the temperature difference. It uses a flowmeter to determine ṁ, thermocouples to determine ΔT, and a table lookup to ...


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