A robust, efficient and effective energy economy requires multiple sourcing options. Combustion of liquid fuels, especially in the transportation sector, serves and will continue to serve in this role for the foreseeable future. It is also predicted that the diversity of fuel sources will increase in the coming years. When integrating these diverse fuels into our current and evolving infrastructure, it is important to maintain reliable combustion performance. For turbine engines, one important combustion metric is reliable ignition.
In this work, we examine the effects of fuel composition and chemistry on ignition performance in a test facility that captures important aspects of gas turbine combustor flowfields. In addition to ignition probabilities for different fuels over a range of fuel-air ratios, high speed imaging and hot-wire velocity measurements were gathered for developing and comparing low-order modeling or high-fidelity simulations of the experiments. We also examined the interplay between the chemical evolution of the ignition kernel and the competing fluid entrainment using a reduced order model.
Sforzo, B., Dao, H., Wei, S. & Seitzman, J. “Liquid Fuel Composition Effects on Forced, Non-Premixed Ignition” Proceedings of the ASME Turbo Expo 2016, Seoul, South Korea, 2016, GT2016-56163, Accepted
Wei, S., Sforzo, B. & Seitzman, J. “Forced Ignition of Fuel-Stratified Flow” Poster, 2015 University Turbine Systems Research Workshop, Atlanta, GA. November 3, 2015