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Harnessing waste heat and reducing wasted lighting : three mechanical structures for efficient energy systems

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dc.contributor.advisor Steven B. Leeb, John J. Cooley and Peter R. Armstrong. en_US
dc.contributor.author Stronger, Brad A en_US
dc.contributor.other Massachusetts Institute of Technology. Dept. of Mechanical Engineering. en_US
dc.date.accessioned 2010-04-28T17:16:07Z
dc.date.available 2010-04-28T17:16:07Z
dc.date.copyright 2008 en_US
dc.date.issued 2008 en_US
dc.identifier.uri http://hdl.handle.net/1721.1/54659
dc.description Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008. en_US
dc.description Cataloged from PDF version of thesis. en_US
dc.description Includes bibliographical references (p. 47-48). en_US
dc.description.abstract This thesis presents three mechanical structures designed for efficient energy systems. In [3], Cooley presents a modification of a fluorescent lamp which allows it to detect nearby occupants and dim itself automatically. This modification presents marketability challenges, as a metal electrode must be suspended from the lamp, but one solution is to integrate an electrode holder into the bulb socket. We present one design for such an integrated electrode. Second, we discuss the creation of a homopolar motor to convert the low-voltage electrical power available from a thermoelectric wafer, which could be powered by waste heat. We are able to achieve brushes and bearings with electrical resistance as low as 70 m[Omega] and friction torque under 300 ,/N.m to demonstrate a proof-of-concept test setup. The demonstrated electromotive force constant is 82 V/rad/s using a 1 inch diameter, 5500 gauss magnet. Finally, we discuss the application of waste heat harvesting to household water heating, and discuss several designs for a water heater with integrated attachment points for waste heat producing devices. en_US
dc.description.statementofresponsibility by Brad A. Stronger. en_US
dc.format.extent 48 p. en_US
dc.language.iso eng en_US
dc.publisher Massachusetts Institute of Technology en_US
dc.rights M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. en_US
dc.rights.uri http://dspace.mit.edu/handle/1721.1/7582 en_US
dc.subject Mechanical Engineering. en_US
dc.title Harnessing waste heat and reducing wasted lighting : three mechanical structures for efficient energy systems en_US
dc.type Thesis en_US
dc.description.degree S.B. en_US
dc.contributor.department Massachusetts Institute of Technology. Dept. of Mechanical Engineering. en_US
dc.identifier.oclc 606891494 en_US


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