Low cost porous fiber optic multi-gas sensors for combustion control systems. Part 1: Fiber optic sensor feasibility analysis

The objective was to develop an improved gas sensor system for accurate 'on-line' monitoring of combustion species aimed to improve the efficiency of gas fired combustion systems. Phase 1 of the program was the feasibility analysis of the proposed fiber optic multi-gas sensor. The analysis included: (1) a comprehensive literature search of research being performed in the areas of combustion diagnostics and fiber optic sensors; (2) a gas sensor vendor survey to evaluate the potential use of commercially available gas sensors for 'on-line' stack gas analysis; and (3) an optical fiber evaluation, including temperature testing of selected fiber samples and evaluation of fiber optic materials which are currently under development. Phase 2 of the program will entail fabrication and testing of the proof-of-concept fiber optic sensor system.