Distributed Fiber Optic Sensor for On-line Monitoring of Coal Gasifier Refractory Health Email Page
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Performer:  Virginia Polytechnic Institute and State University Location:  Blacksburg, Virginia
Project Duration:  05/01/2011 – 10/31/2015 Award Number:  FE0005703
Technology Area:  Plant Optimization Technologies Total Award Value:  $1,832,666
Key Technology:  Sensors & Controls DOE Share:  $1,464,574
Performer Share:  $368,091

Microscope image of the darkened segment of<br/>gold coated fiber after 1000°C annealing in Inconel alloy tube.
Microscope image of the darkened segment of
gold coated fiber after 1000°C annealing in Inconel alloy tube.

Project Description

In this three year project, Virginia Tech Center for Photonics Technology will develop a first-of-a-kind, high-temperature distributed sensing platform capable of monitoring the space- and time-varying thermal properties of an entrained flow gasifier refractory wall. The sensor operates using optically-generated transient, traveling long-period gratings in a photonic crystal optical fiber to achieve fully-distributed measurement of temperatures above 1000°C with centimeter-level spatial resolution.

Project Benefits

This project will develop a high-temperature distributed sensing platform for monitoring a gasifier's refractory wall. Direct measurement technology will enable early detection of hot spots in the refractory wall, expand the capability for comprehensive on-line monitoring of refractory health, and improve gasifier availability by reducing the frequency of refractory maintenance. The expected impact of this technology is ower operating costs through reduced forced outages in power generation systems.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Maria Reidpath: maria.reidpath@netl.doe.gov
Technology Manager Robert Romanosky: robert.romanosky@netl.doe.gov
Principal Investigator Anbo Wang: Awang@vt.edu