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California Polytechnic State University, San Luis Obispo

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A Fire Protection And Life Safety Analysis Of An Oupatient Healthcare System Building, Conrad Chandler Jun 2023

A Fire Protection And Life Safety Analysis Of An Oupatient Healthcare System Building, Conrad Chandler

Fire Protection Engineering: Culminating Experience Project Reports

The subject building of the report is an outpatient healthcare system building that is a two stories in height and 184,670 SF building. This building offers primary, specialty, and mental health outpatient care to patients throughout its state of location.

The facility is a mixed occupancy building with business as the primary occupancy, a surgery suite that classifies as an ambulatory health care occupancy, and assembly uses in the conference rooms, kitchen, and canteen. The Authority Having Jurisdiction (AHJ) has adopted the National Fire Codes (NFC) published by the National Fire Protection Association (NFPA), and throughout this report, the life …


A Study Of The Accuracy Of Stock Feeding And Implementation Of Future Improvements: Project Reflection, Drew R. Tilton Jun 2023

A Study Of The Accuracy Of Stock Feeding And Implementation Of Future Improvements: Project Reflection, Drew R. Tilton

Agricultural Education: Graduate Internship Reports

This report details the role of an assistant coach with responsibilities connected to animal welfare, stock management and feed program.


Aged 539 And 580 Report: Cal Poly Rodeo Fitness Program And Assistant Coaching, Mia I. Prichard Jun 2023

Aged 539 And 580 Report: Cal Poly Rodeo Fitness Program And Assistant Coaching, Mia I. Prichard

Agricultural Education: Graduate Internship Reports

This report details the role of an assistant coach and the implementation of a fitness program for student athletes. This fitness program was designed to enhance athletic performance in the rodeo arena and prepare the Cal Poly Rodeo team members to compete at their highest levels. This paper outlines the daily tasks of an assistant coach throughout this process, as well as the outcomes of this experience.


Aged 539 Project- Soledad High School, Jacob Torres Jun 2023

Aged 539 Project- Soledad High School, Jacob Torres

Agricultural Education: Graduate Internship Reports

This internship and project report includes documentation required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The documents are concurrently used for the Agriculture Incentive Grant review process at Soledad High School conducted by representatives of the California Department of Education. The supporting material includes information to receive state and local funding, outline the goals and objectives of the program, along with an overview of Soledad High School, the agriculture program and the community.


Cal Poly Rodeo Clinics/Horsemanship, Riley J. Bishop Jun 2023

Cal Poly Rodeo Clinics/Horsemanship, Riley J. Bishop

Agricultural Education: Graduate Internship Reports

In this project I worked with the cal poly rodeo students to enhance their horsemanship. In that I work with setting up different clincs for our students to get more help with there knowledge in the arena. I also talk about the sponsorship program that I worked on as well helping to find different ways of getting money for our program.


Programmable And Modular Dc-Dc Converter, Joshua C. Hutchinson, Elijah M. Gordon Jun 2023

Programmable And Modular Dc-Dc Converter, Joshua C. Hutchinson, Elijah M. Gordon

Electrical Engineering

This project considers the design, implementation, and testing of an open-source dc-dc converter for microgrid prototyping. Unlike conventional dc-dc converters that are proprietary and require specialist knowledge, and are usually designed for a single function, the proposed dc-dc converter will comprise of a programmable MCU and a Raspberry Pi (RPi) interface to allow less-skilled consumers to monitor and modify a power converting system. We will develop an open-source library that contains voltage control, current control, maximum power point tracking, and battery charge control profiles. Each library will be easy to implement through a GUI on the Raspberry Pi and will …


Tank Level Controller Plc Lab, Siddhi Upadhyaya, Teghvir Grewal Jun 2023

Tank Level Controller Plc Lab, Siddhi Upadhyaya, Teghvir Grewal

Electrical Engineering

The California Polytechnic State University San Luis Obispo’s Electrical Engineering Department is currently developing lab experiments for the new EE435 (Industrial Power Control and Automation) class. In order to support these efforts, fourth year Cal Poly students are expected to develop laboratory experiments that will be conducted during this new class for the semester system. The lab experiment focused on in this project is called the Tank Level Controller. This experiment will introduce EE 435 students to Schneider Electric Programmable Logic Controller (PLC) hardware and software, which is prominent in the automation industry.
This experiment will require students to develop …


Hvac Fan Cooling System Using Modicon M580, Ogbonnaya Okoronkwo Okorie, Nicolas Jens Fache Jun 2023

Hvac Fan Cooling System Using Modicon M580, Ogbonnaya Okoronkwo Okorie, Nicolas Jens Fache

Electrical Engineering

A common problem that many devices have when operating is overheating. Whether it is operating at full capacity or idle, those devices that we use exert heat to some type of extent. The physical and electronic components of the device can only withstand so much heat before the component becomes damaged. This product provides a method of preventing overheating by being a cooling system for your device. A solution for preventing overheating of the components in these electronic devices is by having some sort of cooling system. Our product’s cooling system will be based on energy efficiency, which means that …


Power Source Characterization For Microgrid Systems, Jalius Welch, Chris Crossan Jun 2023

Power Source Characterization For Microgrid Systems, Jalius Welch, Chris Crossan

Electrical Engineering

Our project aims to develop an affordable and versatile device for testing and analyzing solar panels, batteries, and other voltage sources. The primary objective is to create a portable, cost-effective, and space-efficient device that can be used in various scenarios, including the evaluation of remote microgrids and specialized systems. The device will enable users to gather crucial information about the voltage-current relationship, voltage-power relationship, and other power characteristics of each test source across a range of load currents. One key aspect of the device is its configurability, allowing users to easily modify device parameters and components to accommodate different use …


Current Source Dc-Dc Converter For Undersea Fiber Optic Sensors, Richard Anthony Esplana Kwan, John Charles Rodinec, Andrew Armstrong Jun 2023

Current Source Dc-Dc Converter For Undersea Fiber Optic Sensors, Richard Anthony Esplana Kwan, John Charles Rodinec, Andrew Armstrong

Electrical Engineering

Today, there are nearly 400 cable networks spanning roughly 750,000 miles to connect our world together. With thousands of miles of cable already lying on the ocean floor, with thousands more to come, many have recognized a unique opportunity in using this cable infrastructure as an attachment point for sensors to help study and monitor the ocean. Placing sensors onto a submarine cable is not a simple task; the sensors will require power that they receive from a transmission cable, from a battery, or from the submarine cable itself. Unfortunately, the existing power feed configuration for submarine cables typically only …


Photophoretic Optical Trapping, Essa Ababseh Jun 2023

Photophoretic Optical Trapping, Essa Ababseh

Electrical Engineering

Photophoretic Optical Trapping (POT) is a relatively new concept in the field of optics which has potential application in 3D display. The POT is realized by confining a particle within a very small location of the optical system, mostly around the focus. The particle, if captured by the beam, has the potential to print visible 3D images in free space. Our POT system is encapsulated by an acrylic enclosure, which also incorporates a biconvex lens as well as an adjustable focus laser module. Particles are released around the top of the lens’ focal point until the captured particle can be …


Cybersecurity In Industrial Automation Lab Design For Ee 435, Jules Khalil Emile Hajjar, Emily Zhou Jun 2023

Cybersecurity In Industrial Automation Lab Design For Ee 435, Jules Khalil Emile Hajjar, Emily Zhou

Electrical Engineering

This project involves the creation of an instructional laboratory aimed at teaching cybersecurity for industrial automation applications. Specifically tailored for Electrical Engineering students at Cal Poly, the experiment focuses on configuring the Modicon M580, a PLC from Schneider Electric, and serves to introduce students to relevant cybersecurity protocols and techniques. This project will be implemented into the EE435 (Industrial Power Control and Automation) course curriculum upon Cal Poly’s transition to the semester system.


Pre-Regulator Switching Converter For Photovoltaic Inverters, Lily Seymour, Stephen Alvarado Jun 2023

Pre-Regulator Switching Converter For Photovoltaic Inverters, Lily Seymour, Stephen Alvarado

Electrical Engineering

The photovoltaic industry is constantly looking for more efficient and affordable methods to boost power generation and equipment lifetime. This project considers the design, simulation, fabrication, and testing of a DC-DC switching converter for pre-regulator photovoltaic system applications. The proposed converter is unique in that the solar array is divided up and switched between series and parallel instead of switching to charge and discharge a component for a desired duty cycle. This redesign of the conventional photovoltaic topology allows for more flexibility and control over the output voltage and current of the system, which ideally will protect the inverter from …


Battery Hardware Simulator, Kian N. Orang, Marcelo Garcia Jun 2023

Battery Hardware Simulator, Kian N. Orang, Marcelo Garcia

Electrical Engineering

This project aims to develop a battery hardware simulator, which will serve as a tool for studying microgrids. The primary objective is to create a simulation system that can emulate various battery technologies that are used in microgrids, including lithium-ion and lead acid. By utilizing this battery simulator, Cal Poly students can safely test battery management systems and battery-sensitive electronics without the inherent risks associated with real batteries. Our project implemented this design with a 4-quadrant programmable power supply (ITECH) connected to an AP Systems grid tied inverter. The power supply acts as the battery which can receive or supply …


Development Of Multiple Input Single Output Dc-Dc Converter, Ryan Bailey, Miguel Carmona, Jose Velez-Lopez Jun 2023

Development Of Multiple Input Single Output Dc-Dc Converter, Ryan Bailey, Miguel Carmona, Jose Velez-Lopez

Electrical Engineering

This senior project report details the testing and validation of the designed DC-DC Multiple Input Single Output converter. The MISO uses four-switch buck-boost topology to output a single 48V from multiple nominal 24V inputs. The previous iteration of the MISO was plagued with an overheating mosfet that would drastically reduce the lifespan of the boards and reduce efficiency. This newest iteration includes more ground panes to combat the issues. In addition, the 200W MISO board was redesigned to utilize an edge connector for secure installment, removal, and replacement in the actual DC House system panel. The slots also have a …


Smart Table Top, Conner Sima, Nathan R. Jaggers, Jacob Barnes Jun 2023

Smart Table Top, Conner Sima, Nathan R. Jaggers, Jacob Barnes

Electrical Engineering

Dungeons and Dragons 5th Edition (D&D) is a tabletop role playing game (TTRPG) with complicated mechanics and a seemingly overwhelming amount of information. D&D players are often looking for ways to more effectively track information and products that enhance their game experience. One such product is a custom miniature; players use these to track their character’s location and for the enjoyment of creating a physical representation of their imagination. Virtual Tabletops (VTT’s) were developed to make the entire experience digital. The digital nature of VTT’s make all of the game’s rules and mechanics accessible at the click of the mouse; …


Wireless Energy Harvesting System, Matthew Palma, Audrey Toop, Andrew Fahey Jun 2023

Wireless Energy Harvesting System, Matthew Palma, Audrey Toop, Andrew Fahey

Electrical Engineering

The modern world is built upon wireless transmission of data. The signals that carry this data travel through the air, an untapped source of power. Unreceived transmissions are dissipated into useless forms of energy when they should be reclaimed. Wireless electronics can theoretically be powered by harvesting energy from the electromagnetic signals in the wireless internet frequency band. The aim of this project is to develop a system to capture ambient energy, convert it into DC power, and store the power for later use. The product will consist of three subsystems: an antenna receiver, a rectifier and voltage-multiplier, and a …


Cal Poly Cubesat Lab Next Generation Systemboard, Austin S. Gnecco Jun 2023

Cal Poly Cubesat Lab Next Generation Systemboard, Austin S. Gnecco

Electrical Engineering

Cal Poly CubeSat Lab’s current “SystemBoard” or primary compute board that it flown on their satellites has been flying for over 15 years and is beginning to show it’s age. Many components onboarda are nearing obsolescence and are hard to source for new boards. In this project, the specifications for a new revision of CPCL’s core SystemBoard, named SystemBoard 3.0, were defined and designs were generated for a 1st generation prototype, as well as producing evaluation boards to test the developed subsystems before their integration into a final product. This project was necessary to ensure that CPCL can continue to …


Reaction Wheel Based Rocket Active Spin Stabilization, Tanuj Vemuri Jun 2023

Reaction Wheel Based Rocket Active Spin Stabilization, Tanuj Vemuri

Electrical Engineering

Cal Poly Space Systems is the high-powered and experimental rocketry club at Cal Poly SLO. They aim to design, test, and launch fully integrated launch vehicles. In order to create efficient and reliable vehicles, stabilization systems must be implemented. One parameter that can be actively stabilized is the vehicle’s roll. The roll of the vehicle can have noticeably effects on vehicle performance, as uncontrolled roll leads to decreased system stability in flight. Un-controlled roll can also have negative impacts on the quality of onboard video, which is used for post-flight analysis and marketing.

Reaction wheels are a popular method for …


Directional Speaker, Gabriel Tramontina Ceribelli, Vincent Trevor Pierce Jun 2023

Directional Speaker, Gabriel Tramontina Ceribelli, Vincent Trevor Pierce

Electrical Engineering

Parametric Acoustic Arrays (PAA) are highly directional soundwaves whose attenuation and spread are much less affected by distance from the source as compared to traditional speakers. A well-known application for PAA is the directional speaker. Studies show that noise directly affects health and decreasing noise pollution can help improve the quality of life for millions of people. Directional speakers can revolutionize society by coupling space with sound. This project encodes audio into two RF-Pulse Width Modulated (PWM) waves to drive a transducer array. Each RF-PWM wave interferes with the other in air to generate a Single Sideband (SSB) frequency spectrum …


Bearing Health Detector, Natalie N. Tokhmakhian, Alexander J. Davis Jun 2023

Bearing Health Detector, Natalie N. Tokhmakhian, Alexander J. Davis

Electrical Engineering

Bearings, a common component in rotating machinery, are essential components of modern rotating machines; thus, monitoring their health is crucial when reducing downtime and boosting production efficiency. The Bearing Health Detector (BHD), a hand-held device, captures and processes the sound of a machine under test in real time and estimates the level of wear and tear by comparing the sound to previous tests. The BHD encompasses audiences involved with roller bearings in rotating machinery and is designed to provide the diagnosis of wear through the universal detection of good, satisfactory, and very poor with the following color scheme: green, yellow, …


Intelligent Transportation Systems (Its): A Survey Of What It Is, What It Does, Where It Faulters, And Where To Go With It, Niklas Nordstrom Jun 2023

Intelligent Transportation Systems (Its): A Survey Of What It Is, What It Does, Where It Faulters, And Where To Go With It, Niklas Nordstrom

City and Regional Planning

The world of technology continues to find itself incorporated into an ever-expanding number of fields with a rapidly increasing number of applications. One of these is transportation, under the umbrella of Intelligent Transportation Systems (ITS). The intention of this application at a macro scale is to increase the surface transport safety, efficiency, and convenience. As technological improvements continue to be made, ITS grows in popularity and implementation, and is now found in many cities across the United States. Correct implementation of ITS could have huge benefits in the transportation sector, but without thinking about its implications now, there is a …


Thermal Inequity And Planning Practices: Uncovering The Linkages And Creating Equitable Mitigation Strategies, Elia Rosner Jun 2023

Thermal Inequity And Planning Practices: Uncovering The Linkages And Creating Equitable Mitigation Strategies, Elia Rosner

City and Regional Planning

This paper examines the ways in which historical planning practices have contributed to the unequal vulnerability of marginalized communities to extreme heat, resulting in thermal inequity. Historical planning practices including discriminatory policies and uneven resource allocation, have intensified the effect of the urban heat island (UHI), leading to increased exposure to extreme heat and its associated health risk. Understanding the correlation between planning practices and the UHI effect is crucial for developing effective strategies to mitigate extreme heat impacts and improve thermal equity. By analyzing the underlying factors and consequences of planning decisions, this research aims to inform policy makers, …


Storytelling And Racial Identity: How First-Generation Students Of Color Navigate Their Identities At Predominately White Institutions, Kimberly Garcia Cruz Jun 2023

Storytelling And Racial Identity: How First-Generation Students Of Color Navigate Their Identities At Predominately White Institutions, Kimberly Garcia Cruz

Communication Studies

Utilizing the Narrative Paradigm (Fisher, 1984) and thematic analysis (Braun & Clarke, 2006) the present study seeks to explore and further understand the ways in which first-generation students of color navigate, and thus make meaning, of their race and class identities at a Predominantly White Institution (PWI). Through qualitative interviews with 14 first-generation students of color (henceforth, FGSOC), themes that emerged included: (1) being used to “it”, (2) financial differences cause a clash with belonging, and (3) cultural spaces bring welcoming feelings. Findings were consistent with previous research regarding barriers faced by first-generation students of color. The current study adds …


University Rover Challenge, Dylan S. Tabalan, Daniel Xu, Logan Pascoe, Jake Stone Jun 2023

University Rover Challenge, Dylan S. Tabalan, Daniel Xu, Logan Pascoe, Jake Stone

Mechanical Engineering

Our team has designed, created, and tested a base rover for the University Rover Challenge (URC), conducted by the Mars Society. The rover's design focuses on modularity and robustness, incorporating a chassis constructed from aluminum extrusions, a robust rocker-bogie suspension system, a six-wheel drive train, and basic controls. The choice of aluminum extrusions ensures modularity for future enhancements, while the rocker-bogie suspension system, commonly used in other competitive and actual Mars rovers, provides improved stability and maneuverability. Rover operations are governed by a server-client architecture, with an Xbox controller input providing an intuitive user interface for movement control. Comprehensive testing …


Drop Test Release Mechanism, Sophie M. Getty, Matthew A. Tichenor, Nash W. Levy, Connor D. Dilloughery Jun 2023

Drop Test Release Mechanism, Sophie M. Getty, Matthew A. Tichenor, Nash W. Levy, Connor D. Dilloughery

Mechanical Engineering

Many boxes for shipping undergo drop tests by the manufacturer to ensure their durability. Certain constraints are necessary to successfully carry out these tests such as not damaging the box prior to the drop and maintaining consistency throughout every drop.

Our team has designed a Drop Test Release Mechanism that addresses these constraints. It provides repetitive drops for different objects that vary in shape and size such as small electronics or parts. This device utilizes a soft-clamping mechanism that can release an object with minimal force applied onto it prior to drop. A frame made of 80/20 was designed to …


Animatronic Monarch Butterfly: Mechanical System, Janine Rae Moreno, Enrico Cruz, Alexia Murphy, Lakshmanan Muthukaruppan Jun 2023

Animatronic Monarch Butterfly: Mechanical System, Janine Rae Moreno, Enrico Cruz, Alexia Murphy, Lakshmanan Muthukaruppan

Mechanical Engineering

This report describes the design, manufacturing, and design verification of an interactive animatronic monarch butterfly created by a team of mechanical and computer engineering students for the Girl Scouts of California's Central Coast. The purpose of the project is to engage Girl Scouts in learning about monarch butterflies and provide hands-on experience in robotics and STEM. The report covers design changes, manufacturing processes, and assembly of various components, including the butterfly body, wings, legs, and electronic housing. The software and electronics used in the project are also briefly discussed, as the computer engineering team was responsible for the software and …


Cooled Liquid Rocket Thrust Chamber, Benjamin Gibson, Kealan Frederick Harris, Ryan Frank Schackel, Bjorn Thorsen Jun 2023

Cooled Liquid Rocket Thrust Chamber, Benjamin Gibson, Kealan Frederick Harris, Ryan Frank Schackel, Bjorn Thorsen

Mechanical Engineering

Cooling may affect the thrust output of a small-scale rocket. Little research is published about small-scale rocket performance. We hypothesize the thrust produced varies as the amount of cooling varies. To facilitate assessing this hypothesis, we have designed and built a liquid rocket engine rated for at approximately 25 lbf of thrust. Our objective was to build in parallel with Cal Poly Space Systems, who built a rocket engine with similar specifications except without cooling. Our challenge is to integrate film cooling, so that the effects of cooling may be compared to Cal Poly Space System’s engine which has …


Nfpa Fluid Powered Vehicle Challenge 2023, Joshua A. Romano, Milo T. Klein, Marius Tali, Connor C. Getz, Yael G. Valdez Jun 2023

Nfpa Fluid Powered Vehicle Challenge 2023, Joshua A. Romano, Milo T. Klein, Marius Tali, Connor C. Getz, Yael G. Valdez

Mechanical Engineering

This report includes the design process undergone by Team Shifty in designing a vehicle for the NFPA’s Fluid Powered Vehicle challenge. The report covers the background of the competition, research done by the team, engineering specifications for the design, preliminary and final designs, the manufacturing plan and process, project management details, and several recommendations for future teams participating in the challenge.

The National Fluid Power Association, NFPA, is a trade association with the goal of connecting fluid power companies and advancing fluid power. With the goal of advancement in mind, NFPA hosts an annual Fluid Powered Vehicle Challenge (FPVC). Since …


Thermoacoustic Refrigerator, Rees Phillip Verleur, Colleen Farrell Mccandless, Anders Matthew Bjork, Yashraj Ashwinkumar Solanki Jun 2023

Thermoacoustic Refrigerator, Rees Phillip Verleur, Colleen Farrell Mccandless, Anders Matthew Bjork, Yashraj Ashwinkumar Solanki

Mechanical Engineering

In the Thermoacoustic Refrigerator Cal Poly Mechanical Engineering senior project, we designed, built, and tested a thermoacoustic refrigeration system which achieved an average temperature difference of 11.0°C. Our system consists of a resonator tube with an instrumented stack, mounted onto a base with a speaker and amplifier. An external power supply and function generator provide the power and signal to the system, and a thermocouple reader displays the temperature of the top and bottom of the stack. The system consistently achieved a significant temperature difference between the two ends of the stack in various ambient conditions, and it was quick …