Active Combustion Control for a Low-Emissions Aircraft Engine Combustor Prototype: Experimental Results

Autor:	John C. DeLaat, George Kopasakis, Joseph R. Saus, Changlie Wey, Clarence T. Chang
Rok vydání:	2013
Předmět:	Engineering business.industry Mechanical Engineering Phasor Aerospace Engineering Combustion Fuel injection Instability Automotive engineering Fuel Technology Internal combustion engine Space and Planetary Science Combustor Dynamic pressure Current (fluid) business
Zdroj:	Journal of Propulsion and Power. 29:991-1000
ISSN:	1533-3876 0748-4658
DOI:	10.2514/1.b34653
Popis:	Lean combustion concepts for aircraft engines are more susceptible to combustion instabilities. Prior activity has demonstrated active control to suppress combustion instabilities with a conventional rich-front-end combustor. The current effort is developing further understanding of the problem specifically as applied to future lean-burning, very low-emissions aircraft engine combustors. A prototype low-emissions aircraft engine combustor with a combustion instability has been identified and previous work has characterized the combustor’s dynamic behavior. The combustor exhibits thermoacoustic instabilities related to increasing fuel flow that prevent full-power operation. Active combustion instability suppression using the adaptive sliding phasor average control method has been demonstrated experimentally with this combustor prototype in a combustion test cell operating at engine pressures, temperatures, and flows. A high-frequency fuel valve perturbed the combustor fuel flow. Successful instability supp...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ca1437c4e75f2b46bd5d860e21ea4704 https://doi.org/10.2514/1.b34653 Zobrazit plný text záznamu