Browsing by Author "Everbach, E. Carr"

Now showing 1 - 7 of 7
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    Analysis of Noise Mitigation for the 1-95 / Scudder Falls Bridge Improvement Project
    (2014) Donahey, Rémy; Everbach, E. Carr; Cheever, Erik Allen
    In response to community concerns regarding increased traffic noise resulting from the 1-95 / Scudder Falls Bridge Improvement Project, this project modeled various noise barrier configurations using the Traffic Noise Model from the Federal Highway Administration. The alternatives were qualitatively compared based on applicable standards, cost, and community concerns and a recommendation was given.
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    Design and Construction of an Electromechanically Driven Wave Flume
    (2014) Samuelson, Katie; Everbach, E. Carr; Siddiqui, Faruq Mahmud Anam
    A small-scale wave flume was designed and constructed for the Swarthmore College Engineering Department. Wave flumes are used in laboratories to conduct studies on fluid dynamics, wave theory, sediment transport, and near-shore and ocean processes. The wave flume contains an electromechanically driven piston-type wave-maker to generate water waves. The wave flume is constructed from 1/2 in. thick Plexiglass® sheets and utilizes part of a tank previously constructed and in storage. The 23 ft.-1/8 in. long, 21-7/8 in. high, and 10 in. wide wave flume is supported on a Unistrut™ metal framing substructure. A piston-type wave-maker constructed of Plexiglass® produces the waves and is driven by an Animatics SmartMotor and actuator system that enables the generation of arbitrary waveforms. Additionally, a removable beach was constructed to dissipate the wave energy at the end of the wave flume, opposite of the wave-maker. Given the dimensions of the flume and motor characteristics, waves with a period ranging from 0.312 s to 3.37 s and a wavelength from 6 in. to 132 in. in water from 4 in. to 18 in. may be produced.
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    Design and Feasibility Study of Personal Ornithopters
    (2014) Abel, Imoleayo; Everbach, E. Carr
    While personal jet packs may not be practical, an electromechanically-assisted set of wings may be. No modern heavier-than-air craft flaps its wings; conversely, no bird, bat or insects relies upon fixed wings. Bio-mimicry would suggest that if artificial wings were sized and powered proportional to human weight, it should be possible for a person to fly. This project explores the feasibility of personal ornithopters for short distance commutes.
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    Onsite Wastewater Treatment for a College Subarea
    (2014) Jones, Nia E.; Everbach, E. Carr; Siddiqui, Faruq Mahmud Anam
    This project examines the practices of wastewater treatment, specifically decentralized wastewater treatment. The primary objective was to design an onsite wastewater treatment plant for a subarea on the campus of Swarthmore College that would serve as a more sustainable and cost efficient alternative to the current methods of treatment.
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    Solar Scoreboard
    (2014) Ruben, Cody; Everbach, E. Carr
    The main result of this project was the design of an electrical system that powers Swarthmore's baseball scoreboard using solar energy. This energy is harvested through 2 Kyocera KC130TM photovoltaic panels. These are connected in series to a MorningStar ProStar PS-30M PWM Solar Battery Charge Controller, which maximizes the power output of the solar panels, monitors the state of charge of the battery, and controls the output to the load. The battery used in the system is a 24V lead-acid battery with 200Ah capacity. In between the controller and the scoreboard, a power inverter is used to convert the DC power from the battery to 120V AC required by the scoreboard. In order to expose the solar panels to enough sunlight for this system, they must be installed behind the right field foul pole, rather than on the scoreboard itself. This is due to blockages from trees and a building behind the scoreboard. The estimated cost of this system was $1360.00. This design was created using a combination of TRNSYS and Excel. These tools can be used to design future systems similar to this scoreboard. The cost estimation gives an idea as to what the cost of similar systems would be. If the work needed to connect a scoreboard to the grid exceeds this value, then the system is economically worth installing. The cost of the system as well as connection to the grid will vary with each system, but this project can be used as a model for the design and analysis of future systems.
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    Solar Tracking System
    (2014) Rosenblatt, Anne; Aaron, Nicole; Everbach, E. Carr
    Our goal was to create a solar tracking system that eliminated the need for manual adjustments and did not continuously rotate without regard for weather conditions. We decided we would accomplish this by programming a solar tracker to run initially based on a more intelligent clock system (that would not continue rotating in times without sunlight). Then we could incorporate a self-correcting feature for fine-tuning the direction the system was pointing. Finally, we wanted to connect this solar tracking system to a solar pipe to test whether that could make it a more efficient light source.
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    To Frack or Not to Frack
    (Swarthmore College, 2013-11-12) Everbach, E. Carr
    Carr Everbach has taught Engineering at Swarthmore for 24 years. His course ENVS 2: "Human Nature, Technology, and the Environment" examines the ways environment spurs development of technologies, and, conversely, the ways technologies affect the environment. Hydraulic fracturing for natural gas and oil is following the trajectory of many previous technologies, with similar unintended consequences.