The influence of flow vorticity on droplet combustion and evaporation are experimentally simulated by using a burning liquid-pool system, and numerically investigated by considering a nonreactive, rotating, stagnation-point flow, respectively. The experiment involves measurements of flame temperature, flame position and evaporation rate of the liquid pool, observations of the recirculation zone and the soot layer, and identification of flame extinction. A finite-volume method is employed to numerically solve the corresponding transport equations. Calculated results show that in the vicinity of the liquid surface, both convection and diffusion transports are weakened by the flow vorticity resulting in the suppression of the evaporation strength of liquid; the recirculation zone can be identified and compared with experimental observation. For the steady burning of an ethanol pool in a swirl air jet, it is found that as the angular velocity increases, the diffusion flame shifts closer to the upper burner, has a larger flame thickness, experiences a smaller flame stretch but suffers from the reduction of mass diffusion of ethanol vapor to the flame. However, the evaporation rate of ethanol is usually decreased with increasing the angular velocity. In the flame extinction experiment, the critical volumetric oxygen concentration at extinction first decreases to a minimum value and then increases with angular velocity. It is generally concluded that the flow vorticity has a negative effect on both droplet combustion and evaporation.
Skip Nav Destination
ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition
June 1–4, 1992
Cologne, Germany
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7895-8
PROCEEDINGS PAPER
A Liquid Pool Simulation on Droplet Combustion in a Swirl Flow
Shuhn-Shyurng Hou,
Shuhn-Shyurng Hou
National Cheng Kung University, Tainan, Taiwan, R.O.C.
Search for other works by this author on:
Ta-Hui Lin
Ta-Hui Lin
National Cheng Kung University, Tainan, Taiwan, R.O.C.
Search for other works by this author on:
Shuhn-Shyurng Hou
National Cheng Kung University, Tainan, Taiwan, R.O.C.
Ta-Hui Lin
National Cheng Kung University, Tainan, Taiwan, R.O.C.
Paper No:
92-GT-117, V003T06A014; 9 pages
Published Online:
March 3, 2015
Citation
Hou, S, & Lin, T. "A Liquid Pool Simulation on Droplet Combustion in a Swirl Flow." Proceedings of the ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations. Cologne, Germany. June 1–4, 1992. V003T06A014. ASME. https://doi.org/10.1115/92-GT-117
Download citation file:
366
Views
Related Proceedings Papers
Related Articles
A Liquid-Pool Simulation of Droplet Combustion in a Swirl
Flow
J. Energy Resour. Technol (September,1993)
Numerical Investigation of Combustion and Emission With Different Diesel Surrogate Fuel by Hybrid Breakup Model
J. Eng. Gas Turbines Power (April,2019)
Two-Dimensional Spectroscopic Observation of Nonluminous Flames in a Regenerative Industrial Furnace Using Coal Gas
J. Eng. Gas Turbines Power (January,2004)
Related Chapters
Energy Balance for a Swimming Pool
Electromagnetic Waves and Heat Transfer: Sensitivites to Governing Variables in Everyday Life
Further Applications of Spreading Resistance
Thermal Spreading and Contact Resistance: Fundamentals and Applications
Numerical Simulation Research on a Fixed Bed Gasifier
International Conference on Information Technology and Management Engineering (ITME 2011)