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Proceedings Paper

Fuel flexibility via real-time Raman fuel-gas analysis for turbine system control
Author(s): M. Buric; S. Woodruff; B. Chorpening; D. Tucker
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Paper Abstract

The modern energy production base in the U.S. is increasingly incorporating opportunity fuels such as biogas, coalbed methane, coal syngas, solar-derived hydrogen, and others. In many cases, suppliers operate turbine-based generation systems to efficiently utilize these diverse fuels. Unfortunately, turbine engines are difficult to control given the varying energy content of these fuels, combined with the need for a backup natural gas supply to provide continuous operation. Here, we study the use of a specially designed Raman Gas Analyzer based on capillary waveguide technology with sub-second response time for turbine control applications. The NETL Raman Gas Analyzer utilizes a low-power visible pump laser, and a capillary waveguide gas-cell to integrate large spontaneous Raman signals, and fast gas-transfer piping to facilitate quick measurements of fuel-gas components. A U.S. Department of Energy turbine facility known as HYPER (hybrid performance system) serves as a platform for apriori fuel composition measurements for turbine speed or power control. A fuel-dilution system is used to simulate a compositional upset while simultaneously measuring the resultant fuel composition and turbine response functions in real-time. The feasibility and efficacy of system control using the spontaneous Raman-based measurement system is then explored with the goal of illustrating the ability to control a turbine system using available fuel composition as an input process variable.

Paper Details

Date Published: 3 June 2015
PDF: 10 pages
Proc. SPIE 9482, Next-Generation Spectroscopic Technologies VIII, 94820S (3 June 2015); doi: 10.1117/12.2177015
Show Author Affiliations
M. Buric, National Energy Technology Lab. (United States)
S. Woodruff, National Energy Technology Lab. (United States)
B. Chorpening, National Energy Technology Lab. (United States)
D. Tucker, National Energy Technology Lab. (United States)


Published in SPIE Proceedings Vol. 9482:
Next-Generation Spectroscopic Technologies VIII
Mark A. Druy; Richard A. Crocombe; David P. Bannon, Editor(s)

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