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Articles 1 - 9 of 9
Full-Text Articles in Mechanical Engineering
Effect Of Aerogel On The Thermal Performance Of Corrugated Composite Sandwich Structures, Jacob Dillon Chess
Effect Of Aerogel On The Thermal Performance Of Corrugated Composite Sandwich Structures, Jacob Dillon Chess
Master's Theses
Current insulation solutions across multiple industries, especially the commercial sector, can be bulky and ineffective when considering their volume. Aerogels are excellent insulators, exhibiting low thermal conductivities and low densities with a porosity of around 95%. Such characteristics make aerogels effective in decreasing conductive heat transfer within a solid. These requirements are crucial for aerospace and spaceflight applications, where sensitive components exist among extreme temperature environments. When implemented into insulation applications, aerogel can perform better than existing technology while using less material, which limits the amount of volume allocated for insulation. The application of these materials into composites can result …
Portable Thermoelectric Refrigerator, Cassandra Danielle Beck, Ryan Theodore Gelinas, Joshua Michael Dimaggio, Zachary David Wilson
Portable Thermoelectric Refrigerator, Cassandra Danielle Beck, Ryan Theodore Gelinas, Joshua Michael Dimaggio, Zachary David Wilson
Mechanical Engineering
This project created a versatile thermoelectric refrigerator that can be used via a wall outlet. The product is durable and effective. The refrigerator is functional in any ambient temperature, and uses thermoelectric cooling, and work from a standard 120V power outlet. By understanding existing products’ limitations and strengths, this project produced a product that outperforms what’s currently on the market. Many of the existing products’ operating temperature is dependent on the ambient temperature of the surroundings, which is a large drawback. Additionally, most of them take a long time to reach their lowest temperature, around 3 hours. One team member, …
Driver Cooling System, Joseph Fatin Bolous, Jake Donald Deboer, Alvin Theodore Lau
Driver Cooling System, Joseph Fatin Bolous, Jake Donald Deboer, Alvin Theodore Lau
Mechanical Engineering
This document provides our Final Design Review (FDR) for the Driver Cooling System Project. It contains our background research, which includes current product research, technical research, and information on our sponsor’s needs as a customer as well our manufacturing process, test results, and final design. We created a problem statement to define the scope of the project, discuss sponsor and consumer needs and wants, and technical specifications. After brainstorming, we ultimately selected a thermoelectric cooling system (TEC) after presenting our Preliminary Design Report and Critical Design Report. We built the final prototype, as can be seen in the manufacturing plan, …
3-Dimensional Automated Heat Flux Calibration Device, Victor Raul Chacon, David Madison Morrisset, Alex Michael Schnorr, Kevin Scott
3-Dimensional Automated Heat Flux Calibration Device, Victor Raul Chacon, David Madison Morrisset, Alex Michael Schnorr, Kevin Scott
Mechanical Engineering
This document aims to describe the problems in current radiant heat source heat flux calibration techniques and the approach our team took to solve them through automation. The following sections outline the basic premise of the problem we addressed and who our end product benefited. The proceeding sections addresses the research that we have performed regarding heat flux measurements and automation. This research includes current solutions – mostly partial solutions for problems that are similar but not exactly like ours. Following the background research, we define objectives, with specific details that outline how we evaluated different possible solutions, and how …
Thermal Modelling And Validation Of Heat Profiles In An Rf Plasma Micro-Thruster, Alec Sean Henken
Thermal Modelling And Validation Of Heat Profiles In An Rf Plasma Micro-Thruster, Alec Sean Henken
Master's Theses
The need and demand for propulsion devices on nanosatellites has grown over the last decade due to interest in expanding nanosatellite mission abilities, such as attitude control, station-keeping, and collision avoidance. One potential micro-propulsion device suitable for nanosatellites is an electrothermal plasma thruster called Pocket Rocket. Pocket Rocket is a low-power, low-cost propulsion platform specifically designed for use in nanosatellites such as CubeSats. Due to difficulties associated with integrating propulsion devices onto spacecraft such as volume constraints and heat dissipation limitations, a characterization of the heat generation and heat transfer properties of Pocket Rocket is necessary. Several heat-transfer models of …
Upgrading The Sr-30 Miniature Turbojet For Adaptable Exhaust, Shannon Ferreira, Erin Mcmurchie, Peter Pratt
Upgrading The Sr-30 Miniature Turbojet For Adaptable Exhaust, Shannon Ferreira, Erin Mcmurchie, Peter Pratt
Mechanical Engineering
The California Polytechnic State University, San Luis Obispo (Cal Poly, SLO) Aerospace Department is requesting a variable nozzle adaptation for their SR-30 turbojet engine. The nozzle is intended for laboratory use in sophomore and junior level courses to supplement instruction on the effects that exhaust behavior has on the performance of propulsion technologies. Topics covered during a performance study of the SR-30 turbojet engine will include, but are not limited to: Brayton Cycle analysis, turbojet operation in ideal and non-ideal test conditions, instrumentation limitations, and basic nozzle operation. The SR-30 turbojet engine is similar in design and operation to engines …
Heat Flow Characterization Of Speakers, Sabrina M. Gough, Lydia K. Hedge, Nicolas M. Jones
Heat Flow Characterization Of Speakers, Sabrina M. Gough, Lydia K. Hedge, Nicolas M. Jones
Mechanical Engineering
Statement of Confidentiality: The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.
Transient Heat Storage Systems, Ian M. Sweeney, Brock M. Johnson, Todd K. Lundberg
Transient Heat Storage Systems, Ian M. Sweeney, Brock M. Johnson, Todd K. Lundberg
Mechanical Engineering
Phase change materials (PCM) have many applications in transient cooling systems, including those with high transient heat loads and low duty cycles. These materials allow a system to remain within a narrow temperature range with a relatively low weight compared to conventional heat sinks or high-power cooling systems. This senior capstone project includes the design of a PCM based thermal energy storage system to integrate into an existing cooling loop, as well as a determination of viable PCM’s for the application. This report contains the necessary information to build the test apparatus.
Finite-Difference Modeling Of The Batch Process Smoldering Combustion Of Wastewater, Laura H. Kawashiri
Finite-Difference Modeling Of The Batch Process Smoldering Combustion Of Wastewater, Laura H. Kawashiri
Master's Theses
A MATLAB model was developed for the smoldering combustion of wastewater in the context of a decentralized residential wastewater treatment appliance. Data from a batch process sewage smoldering experiment was simulated using implicit finite-difference approximations, assuming one-dimensional transient conductive heat transfer. The time-dependent temperature profiles within the column represented the main parameters of interest and were used to verify recoverable heat energy estimations. Given that the modeling method used for this thesis represents a unique approach, the assumptions and limitations of this model are thoroughly described in the context of reproducing results for other smoldering setups. A lack of convergence …