| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Advanced Materials for Harsh Environments
|
| Presentation Title |
Now On-Demand Only - Passive Wireless Sensors for Real Time Temperature and Corrosion Monitoring of Coal Boiler Components Under Flexible Operation |
| Author(s) |
Brian Robert Jordan, Kavin Sivaneri Varadharajan Idhaiam, Zachary Lynch , Daryl S. Reynolds , Edward M. Sabolsky |
| On-Site Speaker (Planned) |
Brian Robert Jordan |
| Abstract Scope |
The work focussed upon the development of wireless high temperature sensors for monitoring the temperature and corrosion of metal components commonly used in coal-fired boilers. The sensor architecture was based on a passive and chipless radio frequency identification (RFID) design in order to eliminate issues with sensor interconnection in the harsh environment. The RFID sensors design included thick film refractory metal and/or electrically conductive components pattered over a base ceramic dielectric layer. These sensors are either directly deposited onto to, or transferred over, common boiler metals, such as stainless steel 347H. Various wireless sensor interrogation methods and signal processing methods were investigated. The high-temperature corrosion behaviour of the stainless steel was characterized up to 1200ºC in high steam conditions, and the corrosion kinetics were correlated to the wireless sensor response over time. Post-mortem microstructural analysis after corrosion testing was completed on the coupons to investigate sensor stability and failure mechanisms. |