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A New Energy-based Model for the Prediction of Primary Atomization of Urea-Water Sprays
Technical Paper
2009-01-0902
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The aim of this work is the development of an energy-based model to predict primary break-up of urea and water (Ad Blue) sprays in condition typical of Selective Catalyst Reduction (SCR) systems. The atomization model for Ad Blue injection, developed in the present investigation, performs an energy balance of the liquid column to asses its deformation near the nozzle exit and to predict the dimension of droplets after the primary break-up. To formulate the energy balance it is necessary to evaluate several terms: the theoretical kinetic energy of the jet in absence of dissipation, its real kinetic energy, the fraction of energy dissipated due to turbulence effects, the surface energy before break-up, the surface energy of the droplets after the break-up. The model was implemented in the KIVA3v code and experimental data from Malvern analysis were used for the validation.
Authors
Citation
de Risi, A., Donateo, T., Sciolti, A., Calò, M. et al., "A New Energy-based Model for the Prediction of Primary Atomization of Urea-Water Sprays," SAE Technical Paper 2009-01-0902, 2009, https://doi.org/10.4271/2009-01-0902.Also In
References
- Birkhold, Felix Meingast, Ulrich Wasswrmann, Peter Deutschmann Olaf “Analysis of the Injection of Urea-water-solution for automotive SCR DeNOx-Systems: Modeling of Two-phase Flow and Spray/Wall-lnteraction”-” SAE PAPER 2006-01-0643
- Gabrielsson Pär L.T. “Urea-SCR in automotive applications –” Topics in Catalysis 28 Nos 1–4 April 2004
- Birkhold, Felix Meingast, Ulrich Wassermann, Peter Deutschmann Olaf Modelling and simulation of the injection of urea-water –solution for automotive SCR DeNOx-sistems – Applied Catalysis B: Environmental 70 2007 119 127
- A Computer Program for Chemically Reactive Flows with Sprays Amsden, A. A. O’Rourke, P. J. Butler T. D. Los Alamos National Laboratory May 1989
- A KIVA Program with Block-Structured Mesh for Complex Geometries Amsden Anthony A. Los Alamos National Laboratory March 1993
- Donateo T. de Risi A. Laforgia D. “Optimization of High Pressure Common Rail Electro-injector using Genetic Algorithms” SAE Paper 2001-01-1980 2001
- De Risi, A. Donateo, T. Laforgia, D. “A New Advanced Approach to the Design of Combustion Chambers in Diesel Engines” Int. J. Vehicle Design 41 Nos. 1/2/3/4 165 187 2006