超临界流体
Cyclone(编程语言)
计算流体力学
环境科学
工艺工程
工作液
流化床
材料科学
煤
燃烧
石油工程
化学工程
废物管理
机械
化学
热力学
计算机科学
工程类
物理
有机化学
现场可编程门阵列
计算机硬件
作者
Zeyu Li,Zhenbo Tong,Aibing Yu,Hao Miao,Kaiwei Chu,Hao Zhang,Gang Guo,Jiang Chen
出处
期刊:Particuology
[Elsevier]
日期:2022-03-01
卷期号:62: 36-46
被引量:18
标识
DOI:10.1016/j.partic.2021.06.002
摘要
The utilization of hydrogen is gaining increasing attention due to its high heating value and environmentally friendly combustion product. The supercritical water circulating fluidized bed reactor is a promising and potentially clean technology that can generate hydrogen from coal gasification. Cyclone is a vital part of the reactor which can separate incomplete decomposition of pulverized coal particles from mixed working fluid. This paper aims to gain in-depth understanding of the cyclone separation mechanisms under supercritical fluid by computational fluid dynamics (CFD). Although the amount of supercritical carbon dioxide in mixed working fluid is minor, it obviously influences the flow fields and separation efficiency of a cyclone. The simulation results suggest that both the decreasing content of supercritical carbon dioxide and adding the extra dipleg cause the promoting performance of cyclones. Research findings could refine the design of supercritical fluid–solid cyclones.
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