Name
Title | ||
|---|---|---|
Application of Sapphire-Fiber-Bragg-Grating-Based Multi-Point Temperature Sensor in Boilers at a Commercial Power Plant. |
Abstract | ||
|---|---|---|
Readily available temperature sensing in boilers is necessary to improve efficiencies, minimize downtime, and reduce toxic emissions for a power plant. The current techniques are typically deployed as a single-point measurement and are primarily used for detection and prevention of catastrophic events due to the harsh environment. In this work, a multi-point temperature sensor based on wavelength-multiplexed sapphire fiber Bragg gratings (SFBGs) were fabricated via the point-by-point method with a femtosecond laser. The sensor was packaged and calibrated in the lab, including thermally equilibrating at 1200 degrees C, followed by a 110-h, 1000 degrees C stability test. After laboratory testing, the sensor system was deployed in both a commercial coal-fired and a gas-fired boiler for 42 days and 48 days, respectively. The performance of the sensor was consistent during the entire test duration, over the course of which it measured temperatures up to 950 degrees C (with some excursions over 1000 degrees C), showing the survivability of the sensor in a field environment. The sensor has a demonstrated measurement range from room temperature to 1200 degrees C, but the maximum temperature limit is expected to be up to 1900 degrees C, based on previous work with other sapphire based temperature sensors. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.3390/s19143211 | SENSORS |
Keywords | Field | DocType |
single-crystal sapphire fiber,fiber Bragg gratings,distributed sensing,temperature sensing,wavelength multiplex,femtosecond laser,boiler | Femtosecond,Fiber Bragg grating,Maximum temperature,Electronic engineering,Laser,Engineering,Sapphire,Laboratory testing,Boiler (power generation),Optoelectronics,Power station | Journal |
Volume | Issue | Citations |
19 | 14.0 | 0 |
PageRank | References | Authors |
0.34 | 0 | 10 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yang, Shuo | 1 | 0 | 0.68 |
| Daniel Homa | 2 | 2 | 1.61 |
| Hanna Heyl | 3 | 0 | 0.34 |
| Logan Theis | 4 | 0 | 0.34 |
| John Beach | 5 | 0 | 0.34 |
| Billy Dudding | 6 | 0 | 0.34 |
| Glen Acord | 7 | 0 | 0.34 |
| Dwyn Taylor | 8 | 0 | 0.34 |
| Gary Pickrell | 9 | 0 | 0.68 |
| Wang, A. | 10 | 1 | 1.79 |