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Full-Text Articles in Engineering

Development Of A Marine Biodegradable Target Balloon, Blake Samuel Robinson, Arash Sam Akhavi, David Leonardo Albarran-Martinez Jun 2021

Development Of A Marine Biodegradable Target Balloon, Blake Samuel Robinson, Arash Sam Akhavi, David Leonardo Albarran-Martinez

Materials Engineering

The US Navy utilizes PVC target balloons, known as Killer Tomatoes, that are inflated onboard a naval vessel then deployed into the ocean to calibrate a variety of weaponry. The Navy has requested the investigation of biodegradable polymers to replace the PVC in attempts to reduce ocean waste that is generated from the leftover PVC material. After communicating with American Pacific Plastic Fabricators (APPF), the current manufacturer of the Killer Tomatoes, we gained an understanding of the manufacturing process and the material requirements that would allow a new material to be integrated into their current process. Two proprietary, trial polymers …


Smart Packing With Qr - Improving Cal Poly's Parking System For All Users, Kelsey Bazshushtari, Andrew Lee, Christopher Ragasa Jun 2016

Smart Packing With Qr - Improving Cal Poly's Parking System For All Users, Kelsey Bazshushtari, Andrew Lee, Christopher Ragasa

Industrial and Manufacturing Engineering

Cal Poly Smart Parking, herein referred to as CPSP QR Code Initiative, is developed to reduce the wait times student, staff, and guest drivers experience when searching for a parking spot on campus. Cal Poly is currently undergoing a large growth in student population, and, as a result, is experiencing congestion in parking lots. Drivers will commonly spend frustrating amounts of time "vulturing" these parking lots for an open spot. CPSP QR Code Initiative consists of a database that is controlled by user submitted data through QR codes scanned on a user’s smartphone. This system will provide drivers with a …


Development Of A Model And Optimal Control Strategy For The Cal Poly Central Plant And Thermal Energy Storage System, Daniel Douglas Castro Mar 2016

Development Of A Model And Optimal Control Strategy For The Cal Poly Central Plant And Thermal Energy Storage System, Daniel Douglas Castro

Master's Theses

This thesis develops a calibrated model of the Cal Poly Central Chilled Water Plant with Thermal Energy Storage for use in determining an optimal operating control strategy. The model was developed using a transient systems simulation program (TRNSYS) that includes plant performance and manufacturer data for the primary system components, which are comprised of pumps, chillers, cooling towers, and a thermal energy storage tank. The model is calibrated to the actual measured performance of the plant using the current control strategy as a baseline. By observing and quantifying areas for potential improvement in plant performance under conditions of high campus …


Cal Poly Dining: The Avenue Redesign, Eric Calbonero, Derek Nollsch, Casey Reilly Jun 2015

Cal Poly Dining: The Avenue Redesign, Eric Calbonero, Derek Nollsch, Casey Reilly

Industrial and Manufacturing Engineering

Executive Summary

Campus Dining is planning to close VG’s Cafe during the 2015-2016 school year; as a result, the remaining restaurants on campus need to accommodate the additional student demand. The student team consisting of Eric Calbonero, Derek Nollsch, and Casey Reilly met with Campus Dining’s Director of Operations, Greg Yeo, about this issue—he directed the team toward a redesign of The Avenue Food Court. To redesign The Avenue, the project team focused on several key deliverables as follows:

  • Study current customer trends in The Avenue

  • Develop a proposed facilities layout and design

  • Perform a capacity analysis of The Avenue …


Cal Poly Chocolates, Jason Ferrel, Taylor Fitzpatrick Jun 2013

Cal Poly Chocolates, Jason Ferrel, Taylor Fitzpatrick

Industrial and Manufacturing Engineering

Our design for this project began with building a strong understanding of the current production process. A meeting with the manager, Anna Nakayama, provided a detailed overview of the entire process and outlined some areas of concern. In addition, she provided us with access to critical data such as standard operating procedures and inventory spreadsheets. From there, time studies were conducted for each of the 8 types of chocolate. These time studies helped identify three main issues facing Cal Poly Chocolates. The first issue is in the packaging area of production. The process is entirely manual and has become a …


Analyzing The Costs Of Different Energy Storage Systems For California Polytechnic State University, Christian Royer Jun 2013

Analyzing The Costs Of Different Energy Storage Systems For California Polytechnic State University, Christian Royer

Industrial and Manufacturing Engineering

The goal of this project was to analyze the different ways to release energy from an energy storage device into the grid to save money. This project was worked in conjunction with a Master’s of Science student. An entire year of Cal Poly’s energy usage was examined and multiple trends were observed about when the maximum amount of energy was used. These trends looked at the time of day, the day of the week, and season to see what would be the best way to release energy into the grid to save money. There were two different batteries sizes examined …


Static Balancing Of The Cal Poly Wind Turbine Rotor, Derek Simon Aug 2012

Static Balancing Of The Cal Poly Wind Turbine Rotor, Derek Simon

Master's Theses

The balancing of a wind turbine rotor is a crucial step affecting the machine’s performance, reliability, and safety, as it directly impacts the dynamic loads on the entire structure.

A rotor can be balanced either statically or dynamically. A method of rotor balancing was developed that achieves both the simplicity of static balancing and the accuracy of dynamic balancing. This method is best suited, but not limited, to hollow composite blades of any size. The method starts by quantifying the mass and center of gravity of each blade. A dynamic calculation is performed to determine the theoretical shaking force on …


California Polytechnic State University Wind Resource Assessment, Jason Allan Smith Sep 2011

California Polytechnic State University Wind Resource Assessment, Jason Allan Smith

Master's Theses

Wind resource assessment at California Polytechnic State University shows there is potential for wind power generation on Cal Poly land. A computational fluid dynamics model based on wind data collected from a campus maintained meteorological tower on Escuela Ranch approximately 5 miles northwest of campus suggests there are areas of Cal Poly land with an IEC Class III wind resource at a height of 80 meters above ground. In addition during the daytime when the campus uses the most energy there are large portions of land with annual average daytime wind speeds above 6.9m/s. These areas have been identified by …