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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Ganesh, Sneha Schweisinger, Todd John, R. Wagner |
| Copyright Year | 2018 |
| Abstract | Energy harvesters are steadily gaining popularity as a power source for microelectronic circuits, particularly in wireless sensor nodes and autonomous devices. Energy harvesting from small temperature and/or pressure variations, coupled with an appropriate energy storage unit, can generate sufficient electric power to operate low power electronics. Ongoing research in this area seeks to improve the power capacity and conversion efficiencies of such systems. In this project, a phase change vapor based atmospheric energy harvester with an electromechanical power transformer has been developed. An ethyl chloride fluid system converts the pressure generated, in response to nominal environmental changes, into usable electric power through a mechanical driveline-spring unit and attached DC generator. Published numerical results have indicated 9.6 mW power generation capacity over a 24 hour period for a low frequency sinusoidal temperature input with ±1°C variation at standard pressure. A prototype electromechanical unit was fabricated and experimentally tested; 30 mW electric power for a resistance load was recorded using an emulated input corresponding to 50 bidirectional cyclic atmospheric variations (∼175 hour period). Linearized models were derived to help evaluate the system’s transient characteristics and these mathematical results agreed favorably with the experimental behavior. |
| Sponsorship | Dynamic Systems and Control Division |
| File Format | |
| ISBN | 9780791851906 |
| DOI | 10.1115/DSCC2018-9150 |
| Volume Number | Volume 2: Control and Optimization of Connected and Automated Ground Vehicles; Dynamic Systems and Control Education; Dynamics and Control of Renewable Energy Systems; Energy Harvesting; Energy Systems; Estimation and Identification; Intelligent Transportation and Vehicles; Manufacturing; Mechatronics; Modeling and Control of IC Engines and Aftertreatment Systems; Modeling and Control of IC Engines and Powertrain Systems; Modeling and Management of Power Systems |
| Conference Proceedings | ASME 2018 Dynamic Systems and Control Conference |
| Language | English |
| Publisher Date | 2018-09-30 |
| Publisher Place | Atlanta, Georgia, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Temperature Ethyl compounds Circuits Vapors Generators Energy harvesting Power transformers Pressure Electricity (physics) Stress Transients (dynamics) Fluids Energy generation Sensors Low-power electronics Engineering prototypes Springs Energy storage |
| Content Type | Text |
| Resource Type | Article |
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