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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Stevens, J.W. |
| Copyright Year | 1999 |
| Description | Author affiliation: Dept. of Mech. Eng., Mississippi State Univ., MS, USA (Stevens, J.W.) |
| Abstract | An energy harvesting device designed to produce small (sensor-scale) amounts of electric power is being developed at Mississippi State University, USA. The device will use the daily temperature difference between the air and the ground as input to a thermoelectric generator. The advantages of such a passive device include high reliability, long life-span, low visibility, night-time power production and ruggedness. In this paper, previous results which demonstrated optimum thermoelectric design parameters for this small /spl Delta/T case are extended to include effects of linearly and sinusoidally varying thermal resistance in the heat exchangers. Such variation would occur in an operating device from changes in the air-side convective heat transfer coefficient, for example. It is shown that for the linear case an optimum is reached at the geometric mean of the two extremes in thermal resistance. A closed form function of the mean value and fluctuation magnitude provides the optimum for the sinusoidal case. |
| Starting Page | 68 |
| Ending Page | 71 |
| File Size | 388501 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780354516 |
| ISSN | 10942734 |
| DOI | 10.1109/ICT.1999.843336 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-08-29 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Thermoelectricity Heat transfer Thermal resistance Power generation Ocean temperature Thermoelectric devices Heat engines Water heating Solar power generation Land surface temperature |
| Content Type | Text |
| Resource Type | Article |
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