Measurement and prediction of interactions between burners in multi-low NOx burner systems
Measurements using Laser Doppler Anemometry (LDA) have been carried out on the isothermal flow from multiple small-scale burners enclosed in a furnace-type geometry. These have been used to validate Computational Fluid Dynamics (CFD) models using the commercial unstructured CFD code FLUENT/UNS version 4.1. The flows from arrays of two, four and six co- and counter-rotating burners have been measured at various burner pitches. Measurements show that the isothermal flows impinge on one another and interact significantly when the burner pitch is reduced to 1.3 burner exit diameters, although interactions between flows do not significantly affect the main central core flow. Predictions indicate that the burner jet entrainment is significantly affected by interactions, and the entrainment rate if dependent on the number of burners and whether a co- or counter-rotating swirl arrangement is adopted. Both two and four counter-rotating flows entrain greater amounts of surrounding air than a single burner flow, with the greatest entrainment found with two counter-rotating flows.
- Research Organization:
- ABB Combustion Services Ltd., Derby (GB)
- Sponsoring Organization:
- European Commission (EC)
- OSTI ID:
- 20013513
- Resource Relation:
- Conference: 1998 International Joint Power Generation Conference, Baltimore, MD (US), 08/23/1998--08/26/1998; Other Information: PBD: 1998; Related Information: In: Proceedings of the 1998 international joint power generation conference (FACT-Vol.22). Volume 1: Fuels and combustion technologies; Gas turbines; Environmental engineering; Nuclear engineering, by Gupta, A.; Natole, R.; Sanyal, A.; Veilleux, J. [eds.], 921 pages.
- Country of Publication:
- United States
- Language:
- English
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