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- W2079674678 abstract "ABSTRACT An energy-harvesting thermoelectric generator (TEG) is being developed to provide power for wireless sensors used in health monitoring of Navy machinery. TEGs are solid-state devices that convert heat directly into electricity without any moving parts. In this application, the TEGs utilize the heat transfer between shipboard waste heat sources and the ambient air to generate electricity. In order to satisfy the required small design volume of less than one cubic inch, Hi-Z is using its innovative thin-film Quantum Well (QW) thermoelectric technology that will provide a factor of four increase in efficiency and a large reduction in the device volume over the currently used bulk Bi 2 Te 3 based thermoelectics. QWs are nanostructured mult i-layer films. These wireless sensors can be used to detect cracks, corrosion, impact damage, and temperature and vibration excursions as part of the Condition Based Maintenance (CBM) of the Navy ship machinery. The CBM of the ship machinery can be significantly improved by automating the process with the use of self-powered wireless sensors. These power-harvesti ng TEGs can be used to replace batteries as electrical power sources and to eliminate power cables and data lines. The first QW TEG module was fabricated and initial tests were successful. It is planned to conduct performance tests the entire prototype QW TEG device (consisting of the TEG module, housing, thermal insulation and the heat sink) in a simulated thermal environment of a Navy ship. Keywords: energy harvesting, wireless sensors, health monitoring, thermoelectric, quantum well, power supply, nano structure" @default.
- W2079674678 created "2016-06-24" @default.
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- W2079674678 date "2006-03-16" @default.
- W2079674678 modified "2023-09-23" @default.
- W2079674678 title "Design, fabrication, and testing of energy-harvesting thermoelectric generator" @default.
- W2079674678 doi "https://doi.org/10.1117/12.658843" @default.
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