Print Email Facebook Twitter Emission Modeling of an Interturbine Burner Based on Flameless Combustion Title Emission Modeling of an Interturbine Burner Based on Flameless Combustion Author Augusto Viviani Perpignan, A.A.V. (TU Delft Flight Performance and Propulsion) Talboom, M.G. (Student TU Delft) Levy, Yeshayahou (Technion) Gangoli Rao, A. (TU Delft Flight Performance and Propulsion) Date 2018-01-18 Abstract Since its discovery, the flameless combustion (FC) regime has been a promising alternative to reduce pollutant emissions of gas turbine engines. This combustion mode is characterized by well-distributed reaction zones, which potentially decreases temperature gradients, acoustic oscillations, and NOx emissions. Its attainment within gas turbine engines has proved to be challenging because previous design attempts faced limitations related to operational range and combustion efficiency. Along with an aircraft conceptual design, the AHEAD project proposed a novel hybrid engine. One of the key features of the proposed hybrid engine is the use of two combustion chambers, with the second combustor operating in the FC mode. This novel configuration would allow the facilitation of the attainment of the FC regime. The conceptual design was adapted to a laboratory scale combustor that was tested at elevated temperature and atmospheric pressure. In the current work, the emission behavior of this scaled combustor is analyzed using computational fluid dynamics (CFD) and chemical reactor network (CRN). The CFD was able to provide information with the flow field in the combustor, while the CRN was used to model and predict emissions. The CRN approach allowed the analysis of the NOx formation pathways, indicating that the prompt NOx was the dominant pathway in the combustor. The combustor design can be improved by modifying the mixing between fuel and oxidizer as well as the split between combustion and dilution air. To reference this document use: http://resolver.tudelft.nl/uuid:f8ed29cf-d6d9-4cf1-bc67-f687ccf20f5b DOI https://doi.org/10.1021/acs.energyfuels.7b02473 ISSN 0887-0624 Source Energy & Fuels, 32 (1), 822-838 Part of collection Institutional Repository Document type journal article Rights © 2018 A.A.V. Augusto Viviani Perpignan, M.G. Talboom, Yeshayahou Levy, A. Gangoli Rao Files PDF acs.energyfuels.7b02473.pdf 3.39 MB Close viewer /islandora/object/uuid:f8ed29cf-d6d9-4cf1-bc67-f687ccf20f5b/datastream/OBJ/view