Novel Modified Optical Fibers for High Temperature In-Situ Miniaturized Gas Sensors in Advanced Fossil Energy Systems Email Page
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Performer:  Virginia Polytechnic Institute and State University Location:  Blacksburg, Virginia
Project Duration:  07/01/2005 – 06/30/2014 Award Number:  FC26-05NT42441
Technology Area:  Plant Optimization Technologies Total Award Value:  $2,437,870
Key Technology:  Sensors and Controls DOE Share:  $1,938,172
Performer Share:  $499,697

Stochastically Porous Glass and Sapphire Photonic<br/>Crystal Fiber (SPCF) gas sensors and associated<br/>gas detection absorption spectrum
Stochastically Porous Glass and Sapphire Photonic
Crystal Fiber (SPCF) gas sensors and associated
gas detection absorption spectrum

Project Description

The objective is to develop novel modified fiber materials for high temperature gas sensors based on evanescent wave absorption in standing hole optical fibers. To overcome the response time limitation of currently available holey fibers (due to gas phase diffusion constraints), a novel process will be developed to produce holes perpendicular to the fiber axis. An investigation of the feasibility of upgrading the technology to single crystal sapphire by use of sol-gel processing and laser backside photochemical etching will be accomplished, thereby providing a quantum leap in temperature capability of the gas sensor.

Project Benefits

This project will develop novel modified fiber materials for high temperature gas sensors. These developments are expected to lead to the availability of an inexpensive, rugged, device that is capable of measuring the concentration of multiple pollutants in lean-burn coal combustion exhaust streams as well as sensors that can be used to improve combustion control in coal-fired power plants. The expected impact of this technology is more accurate measurements within a boiler or gasifier for better control of the operation of the facility in a dynamic fashion leading to lower operating costs, improved fuel utilization, and reduced emissions.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Maria Reidpath:
Technology Manager Robert Romanosky:
Principal Investigator Gary Pickrell: