Numerical Analysis of Multicomponent Suspension Droplets in High-Velocity Flame Spray Process
Numerical Analysis of Multicomponent Suspension Droplets in High-Velocity Flame Spray Process
复制标题
高速火焰喷涂过程中多组分悬浮液滴的数值分析
DOI：
10.1007/s11666-014-0106-1
复制
发表时间：
2014
影响因子：
3.1
通讯作者：
Gozali E
中科院分区：
文献类型：
--
作者：
Gozali E
对液体燃料乙醇和水作为不同混合物的液体原料或悬浮液在高速悬浮火焰喷射（HVSFS）过程中进行了数值研究，并对均质乙醇和水作为液体原料的结果进行了比较。研究了混合气体对液滴气动破碎、蒸发、燃烧和气体动力学的影响。颗粒加热开始的确切位置（高于载体液体沸点）可以通过增加混合物中的含水量来控制。通过这种方式，粒子在高温气体区域的飞行时间可以调整，避免表面化学转化的不利影响。将混合物建模为多组分液滴，采用考虑蒸发物质从液滴表面对流流动的对流/扩散模型模拟悬浮液的蒸发过程。该模型由丙烷-氧预混合燃烧、非预混合乙醇-氧燃烧、多组分液滴破碎与蒸发、液滴与气相传热传质等子模型组成。
The liquid feedstock or suspension as a different mixture of liquid fuel ethanol and water is numerically studied in high-velocity suspension flame spray (HVSFS) process, and the results are compared for homogenous liquid feedstock of ethanol and water. The effects of mixture on droplet aerodynamic breakup, evaporation, combustion, and gas dynamics of HVSFS process are thoroughly investigated. The exact location where the particle heating is initiated (above the carrier liquid boiling point) can be controlled by increasing the water content in the mixture. In this way, the particle inflight time in the high-temperature gas regions can be adjusted avoiding adverse effects from surface chemical transformations. The mixture is modeled as a multicomponent droplet, and a convection/diffusion model, which takes into account the convective flow of evaporating material from droplet surface, is used to simulate the suspension evaporation. The model consists of several sub-models that include premixed combustion of propane-oxygen, non-premixed ethanol-oxygen combustion, modeling of multicomponent droplet breakup and evaporation, as well as heat and mass transfer between liquid droplets and gas phase.
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DOI：
10.1016/j.ijheatmasstransfer.2007.11.044
发表时间：
2008-07
影响因子：
5.2
作者：
N. Zeoli;S. Gu;S. Kamnis
通讯作者：
N. Zeoli;S. Gu;S. Kamnis
高速悬浮火焰喷涂 (HVSFS) 中燃烧和气体动力学的数值方法和优化
影响因子：
5.4
作者：
Dongmo E;Killinger A;Wenzelburger M;Gadow R.
通讯作者：
Gadow R.
影响因子：
3.1
作者：
Dongmo, Esther;Gadow, Rainer;Wenzelburger, Martin
通讯作者：
Wenzelburger, Martin
高速悬浮火焰喷涂 (HVSFS) 的进展
影响因子：
5.4
作者：
J. Rauch;G. Bolelli;A. Killinger;R. Gadow;V. Cannillo;L. Lusvarghi
通讯作者：
L. Lusvarghi
高速悬浮火焰喷涂 (HVSFS) 的新成果
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
R. Gadow;A. Killinger;J. Rauch
通讯作者：
J. Rauch