The objective of this thesis was to develop a novel understanding of the mechanics of two phase gas-liquid flows and sprays injected through industrial effervescent nozzles. This was done using detailed experimental investigations and scaling for two-phase flows and sprays. This study helps to quantify near-field liquid and gas phase statistics that are challenging and impossible to measure in the reactors due to inaccessibility restrictions. The development of nozzles is generally performed on air-water systems. My plan was to begin with the study of small-scale sprays (air and water) to compare to full scale industrial conditions at pilot operation (air-water) or at commercial operation (steam-bitumen), to determine size scaling relationships. The relationship between the lab scale air-water experiments and real industrial scale steam-bitumen has never been fully examined. Knowledge from this thesis will make the development of future nozzles with much less dependent on trial and error. This thesis was an attempt to establish fundamental scaling relationships for the prediction of two-phase spray behavior that can be applied directly to full scale industrial size nozzles that would be of very significant value to industries and to the scientific community in general. Understanding the performance of two phase nozzles through established scaling laws will aid in optimizing the two phase nozzle flow conditions and will serve as a major tool in nozzle design and development for future generation nozzles for many industrial applications.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:AEU.10048/1664 |
| Date | 06 1900 |
| Creators | Rahman, Mohammad |
| Contributors | Brian Fleck (Mechanical Engineering), Ted Heidrick (Mechanical Engineering), Dr. Andr G. McDonald (Mechanical Engineering), Dr. Ergun Kuru (Civil and Environmental Engineering), Dr. Darko Matovic (Mechanical and Materials Engineering, Queens University) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 3385650 bytes, application/pdf |
| Relation | Rahman et al. (2010) Effects of the Gas Phase Molecular Weight and Bubble Size on the Two-Phase Atomization in a Horizontal Nozzle, International Journal of Multiphase Flow, submitted, 40 pp., Rahman et al. (2010) Effects of Liquid Viscosity and Surface Tension on Atomization in Two-Phase, Gas/Liquid Fluid Coker Nozzles, FUEL. 89: 1972-1882., Rahman et al. (2010) Scaling Analysis of Nozzle Size on Atomization in Two-Phase, Gas-Liquid Nozzles, Multiphase Science and Technology. 22(2): 133-155., Rahman et al. (2009) Characterizing the Two-Phase, Air/Liquid Spray Profile Using a Phase-Doppler-Particle-Analyzer. IOP Journal of Physics Conference Series. 147: 1-15., Rahman et al. (2009) A Critical Review of Advanced Experimental Techniques to Measure Two-Phase Gas/Liquid Flow. The Open Fuels & Energy Science Journal, 2: 54-70, Rahman et al. (2009) A Critical Review of Two-Phase Gas/Liquid Industrial Spray Systems. International Review of Mechanical Engineering. 3(1):110-125., Rahman et al. (2010) Predicting the Two-Phase Gas/Liquid Spray Break-up Mechanism by the Dimensionless Numbers. ILASS Europe- 2010, Brno, Czech Republic, 6-8th September, Rahman et al.. Mass Flux Measurement of Two Phase Dense Spray Using a Coupled Impulse Probe and PDPA Technique, 22nd Annual ILASS Americas Conference on Liquid Atomization and Spray Systems, ILASS-AMERICAS, Cincinnati, Ohio, May 16-19, 2010., Rahman et al. Correlations between the Two-Phase Gas/Liquid Spray Atomization and the Stokes/Aerodynamic Weber Numbers, 6th International Symposium on Measurement Techniques for Multiphase Flows, Okinawa, Japan, paper no: 98, December 15-18, 2008., Rahman et al. Correlations of the Droplet Size-Velocity of the Two-Phase, Air/Liquid Spray Using a Particle-Dynamic-Analyzer, proceedings of the FEDSM 2008, ASME Fluids Engineering Conference, FEDSM2008- 55330, Jacksonville, Florida USA, August 10-14, 2008., Rahman et al. Estimation of Average Void Fraction for Gas-Liquid, Two-Phase Flow in an Industrial Nozzle Assembly Using a Quick-Closing-Valve, proceedings of the FEDSM2008, ASME Fluids Engineering Conference, FEDSM2008- 55334, Jacksonville, Florida USA, August 10-14, 2008., Rahman et al. Horizontal Two-phase Flow Regimes and Bubble Size Distribution Prediction Using High Speed Image Analysis, proceedings of the 13th International Symposium on Flow visualization, Nice Acropolis Center, French Riviera, July 1st to 4th, 2008. |
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