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Paired Storage Distributed Energy System Design for a Local Community Farm
Get PDFThis project considers the design of a renewable energy microgrid for a 19-acre community farm in San Luis Obispo, CA as the farm seeks to increase the magnitude of its electrical loads, and gain back-up electrical capability. The microgrid design will enable lower carbon emissions, reduce demand on the utility grid while saving on energy costs, and provide improved reliability and resiliency to the operator of the community farm. The eventual implementation of the design by a professional engineering entity will allow the community farm to expand its education program to include renewable energy as well as gain notoriety in the sustainability conscience community that City Farm relies on for donations. The design process will consist of 1) analysis of the farm’s existing electrical system and its loads, 2) a dive into State, local, and utility rules defining under what circumstances microgrids can be built interconnected to the grid, 3) analysis to estimate optimal component and resource sizing, and 4) recommending locations, components, protection and component settings for the smart distributed energy generation facility 5) analysis on safety, back up capacity, and financial feasibility of the design
Linear Induction Motor Design
No full textThis project entails the design of a linear induction motor for electric bicycle and motorcycle applications. This design demonstrates superior mechanical efficiency and power transfer compared with the previous design that it is based upon. It is an improvement on conventional permanent magnet synchronous motors. We designed, simulated, and began fabrication of a new motor design based on an existing linear rail motor design from/by the Cal Poly Hyperloop Club. The motor uses two stationary laminated cores and six windings to rotate an aluminum annulus. It is intended to operate on 3-phase AC power with a variable frequency drive (VFD) controller
Covalent Adaptable Networks for Wood Coatings
Get PDFWood swells and shrinks causing problems with seasonal humidity. Applying thick coatings of reactive finishes based on cross-linked polyurethane, epoxy, or polyesters can slow moisture-vapor exchange. However, the use of thick coatings leads to cracking and crazing sooner than thin finishes. This research proposes the addition of 3.3 mol % triazabicyclodecene, a conventionally used covalent adaptable network catalyst, in a commercially available polyester-based wood coating. The self-healing of the wood coating is tested using DMA stress relaxation and compression molding. The result from DMA renders inconclusive and compression molding indicates the novel wood coating oxidizes at elevated temperatures. The wood coating thus shows no substantial evidence of self-healing and bond rearrangement. The durability of the wood coating was subsequently tested using QUV artificial weathering. Ultimately the films show significant yellowing after exposure to UV. Using DSC and FTIR the wood coating also exhibits poor thermal and chemical stability. Overall the formulation of a novel self-healing outdoor wood coating is unsuccessful. However, CANs still show much promise for use in self-healing outdoor wood coatings
The Grand Entrance: A Faculty and Staff Housing Development
Get PDFThe team chose this project because it is one of many upcoming projects detailed for California Polytechnic State University (University) in the 2035 Master plan. The University has a capacity of over 21,000 students and 3,000 employees, including 1,400 faculty. Many students and faculty from the University live within city limits, with students making up a majority of the rental market in the city. In a typical four-bedroom house, four students with four separate incomes can rent out a house together and pay a much higher rent than a faculty member with one to two incomes could. Additionally, The City of San Luis Obispo has reached a near-zero vacancy rate, with the average rent passing the average salary of a new University employee. As a result of this, many faculty members are forced to look for housing in the cities surround San Luis Obispo, creating longer and more inconvenient commutes. The University is aware of increasing difficulties for faculty to reside in the area and is seeking a design proposal for a faculty housing development on the corner of Slack St and Grand Ave. The Request for Proposals (RFP), issued in June 2022, outlined the need for 150-220 new rental and for sale units, with a variety of unit types and floor plans. This report serves as the deliverable for the University’s RFP, consisting of Site Analysis, Visioning, and Final Design. Over the course of Spring Quarter 2023, the team conducted several research methods, including in person site visits, existing building tours, and data collection from various news sources. We compiled this information into the first chapter of this report: SIte Context and Analysis. This chapter is organized into different types of data: Physical, Social, Regulatory, Cultural & Historical, and University. All data was summarized into the Strengths, Weaknesses, Opportunities, and Threats (SWOT) table and the Site Analysis Map. Next, the team took all the Site Analysis data and used it to create a vision for the project. We began by establishing design principals to guide our inspiration for the project. Once principals were established, the team conducted case studies based on housing projects in San Luis Obispo as well as other Universities. Pulling inspiration from these studies, we developed Goals, Principals, and Design Ideas for our project. Keeping these goals in mind, we began the design phase with two preliminary concept diagrams and final concept for the project. In the final few weeks of Spring Quarter, we began the Design Phase. Using SketchUp, Illustrator, and Photoshop, the team developed an illustrative site plan, a 3D model, and two perspective views of our final site. The Design chapter includes these deliverables as well as a project description and development table that connects our final design to the University’s RFP
Perforated Groove Cam Lock
Get PDFNASA Artemis III astronauts need a way to attach and detach various tools to an extension handle to be used during lunar EVA sample collection. Because lunar dust is so harsh and abundant, mechanisms must be designed to function regardless of the number of contact particulates. Past designs used on the Apollo missions proved to be problematic for their operators, opening the door for innovative improvement. A new mechanism has been proposed that directly addresses the performance issues of the original handle extension mentioned in NASA’s Apollo mission reports. The new mechanism boasts an open design that promotes dust tolerance while maintaining operational simplicity. The device contains two primary components: a cylindrical insert with a notched groove, and a perforated socket paired with a cam latch. The notches in the insert allow lunar dust to pass through the negative space without sacrificing contact stability. A similar effect is achieved by the perforations in the socket. The assembly meets all Neutral Buoyancy Lab (NBL) standards and is intended for use with EVA gloved hands. The approved design proposal is complete and physical development is near complete. The justification for this design pertains to the challenge specifications provided by NASA. All material requirements, as well as a finalized manufacturing plan have been identified. All specifications meet compliance, and a final prototype was tested in the NBL as well as the Simulant Lab in the Johnson Space Center
Xenabloom
Get PDFProposal for an architectural and structural design of a shade structure at the Leaning Pine Arboretum, employing the Xenaform typology of Poly Shells, LLC
Fire Protection Engineering for Building A
Get PDFBuilding A is a 9-storey mixed used development in Singapore to be completed in 2028. Fire safety provisions of Building A shall be in accordance with Singapore Fire Code 2018.
The report has analyzed the fire safety provisions in the area of structural fire protection provision, means of escape provision, automatic water suppression system provision, automatic fire detection and alarm system provision, engineering smoke control system provision, flammability assessment as well as performance based assessment.
Generally, building A complied to the prescriptive requirements of automatic water suppression system provision, automatic fire detection and alarm system, structural fire provision and means of escape provision.
However, there are 3 non-compliances to the Singapore Fire Code 2018: (1) Extended fire compartment size, (2) Insufficient exit capacity, and (3) Insufficient setback distance from notion boundary.
The non-compliance related to extended fire compartment size and insufficient exit capacity are approached with performance based fire engineering study (ASET/RSET assessment) in accordance with Singapore Fire Safety Engineering Guideline 2015.
For the ASET/RSET assessment, the following design fires have been considered: (1) Design fire 1 on 1st story which is the base of atrium for maximum smoke entrainment to the upper floors, (2) Design fire 2 on 3rd story with the highest ceiling and thus the largest fire size based on 2nd ring sprinkler activation, (3) Design fire 2 with wind effect for sensitivity study, and (4) Design fire 4 on 5th story music room where insufficient egress capacity is provided for the floor. Pathfinder evacuation modelling has been carried out for movement time estimation for occupant evacuation on respective floors.
The performance-based fire engineering study has concluded that the ratio of ASET/RSET for all the design fire are \u3e2 and thus Building A has met the acceptance criteria stipulated in SFEG 2015.
For the non-compliance of insufficient setback distance, radiation heat exposure study has been carried out in accordance with SFEG 2015. Design fire 3 with 50% increase in the largest fire size has been considered at the edge of the building nearest to the notional boundary. The study has concluded that the radiation heat exposure to the notional boundary is less than 12.6 kW/m2. In other words, the acceptance criteria of below 12.6 kW/m2 stipulated in SFEG 2015 has been met
Moving Students Toward Activism: Microblogging about Gender-Based Violence to Channel Emotion and Encourage Action
Get PDFFor students in gender studies courses, a unit on gender-based violence can be jarring. However, faculty can reflect on how to help students engage their emotions to enhance their learning and participate in gender activism. Students also benefit through the opportunity to reflect on their feelings and engage their emotional experience as part of their learning. In this assignment, I share how I’ve used a microblogging assignment to channel students’ emotions about gender-based violence into action-oriented digital activism content
Character Pieces for the Town of the Dead
No full textA set of 9 character pieces that are part of a larger project - a visual novel called “Town of the Dead.
Investigating Cost-Effective and Time-Efficient Ways to Speed Up Transit
Get PDFWith the emphasis on cities worldwide prioritizing more environmentally friendly forms of transportation, along with a new focus on equity to ensure that underserved and disadvantaged communities are served equitably and receive services that enable economic opportunity, access to recreation opportunities, and social services, equitable and sustainable forms of transportation are required. This study explores potential methods for enhancing and strengthening transit as a reliable and sustainable means of transportation. This study evaluates cost-effective methods for achieving significant gains in improving transit reliability and speed