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Intensifying Mass and Heat Transfer using a High-g Stator-Rotor Vortex Chamber
Chemical Engineering and Processing: Process Intensification ( IF 3.8 ) Pub Date : 2021-09-17 , DOI: 10.1016/j.cep.2021.108638
Arturo Gonzalez-Quiroga 1 , Vladimir Shtern 2 , Patrice Perreault 3 , Laurien Vandewalle 4 , Guy B. Marin 4 , Kevin M. Van Geem 4
Affiliation  

Vortex reactors take advantage of the synergy between enhanced heat and mass transfer rates and multifunctional phenomena at different temporal and spatial scales. Proof-of-concept experiments with our novel and innovative STAtor-Rotor VOrtex Chamber (STARVOC) confirm its advantageous features for the sustainable production of chemicals and fuels. STARVOC is a high-g contactor that uses carrier flow (gas or liquid) tangential injection to drive a rotor attached to low-friction bearings. The vortex chamber inside the rotor contains a secondary phase or phases, such as a solids bed, a liquid layer, or a suspension. Carrier fluid passes through the perforated rotor wall and contacts a densely and uniformly distributed secondary phase with enhanced slip velocities. Experiments focused on pressure profiles, rotor angular velocity, and solids azimuthal velocity. With air as the carrier fluid and different solid particle beds as the secondary phase, STARVOC reached bed azimuthal velocities up to four-fold compared to those reached in Gas-Solid Vortex Units with fully static geometry. These results show its potential to improve interfacial heat and mass transfer rates and take advantage of flow energy and angular momentum. Due to its process intensification capabilities, STARVOC is a promising alternative for the state-of-the-art chemical industry.



中文翻译:

使用高 g 定子-转子涡流室加强传质和传热

涡流反应器利用了不同时间和空间尺度上增强的传热和传质速率与多功能现象之间的协同作用。使用我们新颖且创新的定子-转子涡流室 (STARVOC) 进行的概念验证实验证实了其在化学品和燃料可持续生产方面的优势。STARVOC 是一种高重力接触器,它使用载流(气体或液体)切向注入来驱动连接到低摩擦轴承的转子。转子内的涡流室包含一个或多个第二相,例如固体床、液体层或悬浮液。载流流体穿过穿孔转子壁并接触具有增强滑移速度的密集且均匀分布的第二相。实验集中在压力分布、转子角速度、和固体方位角速度。以空气为载体流体,以不同的固体颗粒床为第二相,STARVOC 达到的床方位角速度是具有完全静态几何形状的气固涡流装置的四倍。这些结果显示了它在提高界面传热和传质速率以及利用流动能和角动量方面的潜力。由于其过程强化能力,STARVOC 是最先进的化学工业的有前途的替代品。这些结果显示了它在提高界面传热和传质速率以及利用流动能和角动量方面的潜力。由于其过程强化能力,STARVOC 是最先进的化学工业的有前途的替代品。这些结果显示了它在提高界面传热和传质速率以及利用流动能和角动量方面的潜力。由于其过程强化能力,STARVOC 是最先进的化学工业的有前途的替代品。

更新日期:2021-09-23
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