New Optimal Sensor Suite for Ultrahigh Temperature Fossil Fuel Applications

Abstract

Accomplishments during Phase II of a program to develop and demonstrate photonic sensor technology for the instrumentation of advanced powerplants are described. The goal of this project is the research and development of advanced, robust photonic sensors based on improved sapphire optical waveguides, and the identification and demonstration of applications of the new sensors in advanced fossil fuel power plants, where the new technology will contribute to improvements in process control and monitoring. During this program work period, major progress has been experienced in the development of the sensor hardware, and the planning of the system installation and operation. The major focus of the next work period will be the installation of sensors in the Hamilton, Ohio power plant, and demonstration of high-temperature strain gages during mechanical testing of SOFC components.

Development of an improved device to control flame brightness in combustion chambers of steam boilers

“…It is very interesting to explore the possibility of simultaneous control of CO and CO 2 in relation to background bright temperatures [11]. However, the method is more suitable for use in the metallurgical industry.…”

“…The use of a sapphire optical fiber in coal burners is not justified because the emission spectra of combustion products do not fully coincide with its "window" of transparency [11]. The maximum transparency is the highest with a wavelength of 2.94 µm.…”