Dynamic behavior with rapid evaporation of an inkjet water droplet upon collision with a high-temperature solid above the limit of liquid superheat

The macroscopic regularities of heat and mass transfer and phase transitions during water droplets motion through high-temperature (more than 1000 K) gases have been investigated numerically and experimentally. Water droplet evaporation rates have been established. Gas and water vapors concentrations and also temperature values of gas-vapor mixture in small neighborhood and water droplet trace have been singled out. Possible mechanisms of droplet coagulation in high-temperature gas area have been determined. Experiments have been carried out with the optical methods of two-phase gas-vapor-droplet mixtures diagnostics (“Particle Image Velocimetry” and “Interferometric Particle Imaging”) usage to assess the adequateness of developed heat and mass transfer models and the results of numerical investigations. The good agreement of numerical and experimental investigation results due to integral characteristics of water droplet evaporation has been received.

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Dynamic behavior of water droplet for evaluating outdoor insulator

2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials ◽

10.1109/icpadm.2009.5252430 ◽

2009 ◽

Cited By ~ 4

Author(s):

B. X. Du ◽

Yong Liu ◽

Y. S. Xia ◽

B. X. Yang ◽

B. C. Liu

Keyword(s):

Dynamic Behavior ◽

Water Droplet

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Static and dynamic behavior of water droplet on solid surfaces with pillar-type nanostructures from molecular dynamics simulation

International Journal of Heat and Mass Transfer ◽

10.1016/j.ijheatmasstransfer.2014.08.047 ◽

2014 ◽

Vol 79 ◽

pp. 647-654 ◽

Cited By ~ 31

Author(s):

D. Niu ◽

G.H. Tang

Keyword(s):

Molecular Dynamics ◽

Molecular Dynamics Simulation ◽

Dynamic Behavior ◽

Water Droplet ◽

Solid Surfaces ◽

Dynamics Simulation

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Dynamics of Bed for Regeneration of Cerium Oxide High-Temperature Coal Gas Desulfurization Sorbent

Materials Science Forum ◽

10.4028/www.scientific.net/msf.896.148 ◽

2017 ◽

Vol 896 ◽

pp. 148-154

Author(s):

Jun Ming Yu ◽

Shang Guan Ju ◽

Li Ping Liu ◽

Lei Yang ◽

Jia An ◽

...

Keyword(s):

High Temperature ◽

Cerium Oxide ◽

Dynamic Behavior ◽

Sulfur Content ◽

Fixed Bed ◽

Movement Speed ◽

Coal Gas ◽

Oxygen Analyzer ◽

Micro Reactor ◽

High Temperature Gas

The dynamic behavior of bed for regeneration of cerium oxide high temperature gas desulfurization sorbent under the atmosphere of O2 was investigated in the fixed bed micro-reactor. O2 concentration during the regeneration can be detected by an oxygen analyzer, and the sulfur content of sorbent in the bed was test using sulfur analyzer. The effects of O2 concentration, regeneration temperature on the dynamic behavior of bed for regeneration of CeO2 desulfurization sorbent were discussed. According to the experimental results, the length and movement speed of regeneration zone are calculated. The results showed that the increase of O2 concentration in inlet gas obviously improves the movement speed of regeneration zone in bed for CeO2 desulfurization sorbent, and the increase of regeneration temperature can decreased the length of the regeneration zone and improved the movement speed of the regeneration zone. The increase of regeneration temperature had a better effect on the improvement of bed utilization of sorbent than that of O2 concentration.

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