High Temperature Electronic Nose for In-Situ Exhaust Measurement

76022S In order to actively control both combustion efficiency and pollution suppression in industrial boilers, power generation turbines, and other engines, the real-time measurement of exhaust gas composition is required. Current detection techniques are large and expensive and, therefore, not suited for the in situ measurement of the exhaust streams of these engines. This project will develop a high-temperature, small-form-factor platform that will allow multiple gas microsensors to perform in situ measurements on exhaust stream emissions, allowing the control of combustion parameters for improved efficiency and reduced pollution. During Phase I, individual high temperature sensors were tested, both in the laboratory and in the field, to determine their suitability for detecting emission species. A high temperature packaging concept, suitable for the incorporation of multiple sensors in a compact probe, was developed. In Phase II, sensors will be fabricated for extensive testing and characterization, a prototype system will developed, and the system will be demonstrated at fossil-fueled utilities and/or other relevant facilities. Phase II will culminate in the development and demonstration of a High Temperature Electronic Nose, suitable for monitoring emissions and feedback for the control of boiler burners in utility and industrial applications. Commercial Applications and Other Benefits as described by the awardee: In addition to industrial boilers and utility boilers, the high-temperature electronic nose should have application to almost any combustion engine, including gas turbine generators, aircraft, and automobile engines. These markets not only are very large, but also will require new technologies to meet the mandated pollution control requirements and to achieve improved engine efficiency.