Author: Jorg StengelePublisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Experimental and Theoretical Study of Droplet Vaporization in a High Pressure Environment
Author: Jorg StengeleA Numerical Study of Spherical Droplet Vaporization in a High Pressure Environment
Author: Eric Warren CurtisExperimental Studies of the Vaporization of Droplets in Heated Air at High Pressures
Author: Publisher:
ISBN:
Category : High pressure (Science)
Languages : en
Pages : 434
Book Description
An Experimental and Theoretical Study of the Vaporization of Single Fuel Droplets
Author: Gary L. BormanNumerical Study of Bi-component Droplet Vaporization in a High Pressure Environment
Author: J. StengeleASME Technical Papers
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 488
Book Description
Experimental Investigation of Droplet Vaporization Under Conditions of High Temperatures and Pressures
Author: G. B. PetrazhitskiĭPublisher:
ISBN:
Category : Atomization
Languages : en
Pages : 28
Book Description
Paper
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 542
Book Description
An Experimental Investigation of the Effect of Fuel Droplet Size on the Vaporization Process in a Turbulent Environment at Elevated Temperature and Pressure
Author: Cameron Mark VerweyPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The performance of liquid-fuelled spray combustion systems has a massive impact on the efficiency of energy production in many sectors across the globe. Realistic combustors generate sub 100-μm droplets and operate under high pressure and temperature in strong turbulence. Investigations into droplet evaporation and combustion provide fundamental knowledge and validation data regarding the behaviour of sprays, and although single droplet approaches have been a staple of energy research for many decades, there is little information regarding the effect of turbulence and initial diameter, especially micro-sized, on droplet evaporation rates. The present experimental study develops, interprets, and correlates the results of almost 500 tests performed on isolated heptane and decane droplets. Droplets in the range of 110 - 770 μm (initial diameter) were generated and suspended on small intersecting micro-fibers in a spherical fan-driven chamber and exposed to quasi-zero mean turbulence of intensity up to 1.5 m/s, temperatures ranging from 25 - 100°C, and pressures between 1 and 10 bar. The results indicate that droplet size has a major influence on evaporation rate, as measured by the temporal reduction in droplet surface area, when the environment is turbulent. Evaporation rates increased with both initial diameter and turbulence intensity at all test conditions. The effectiveness of turbulence, defined as the ability of turbulence to improve the evaporation rate over the rate of a stagnant droplet at identical ambient conditions, increased with pressure but decreased with temperature. Both the ratio of Kolmogorov length scale to droplet diameter and the theoretical molar concentration gradient of fuel at the droplet surface are found to be excellent predictors of turbulence effectiveness. Correlation approaches utilizing a turbulent Reynolds number or a vaporization Damköhler number are suggested to predict the evaporation rate of a single droplet exposed to a purely turbulent flow field.
Chemical Kinetics in Combustion and Reactive Flows: Modeling Tools and Applications
Author: V. I. NaoumovPublisher: Cambridge University Press
ISBN: 1108427049
Category : Science
Languages : en
Pages : 449
Book Description
Introduces advanced mathematical tools for the modeling, simulation, and analysis of chemical non-equilibrium phenomena in combustion and flows, following a detailed explanation of the basics of thermodynamics and chemical kinetics of reactive mixtures. Researchers, practitioners, lecturers, and graduate students will find this work valuable.