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Flow Regimes in Gas-Solid Fluidized Beds via Micro-Foil Heat Flux Sensor
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-11-23 , DOI: 10.1002/ceat.202000559 Haidar Taofeeq 1, 2 , Sebastián Uribe 3 , Muthanna Al-Dahhan 3
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-11-23 , DOI: 10.1002/ceat.202000559 Haidar Taofeeq 1, 2 , Sebastián Uribe 3 , Muthanna Al-Dahhan 3
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The flow regime transitions in a gas-solid fluidized bed were studied for the first time using a micro-foil heat flux sensor. The time series of heat flux signals was analyzed by statistical and state space methods. The experimental measurements were performed in a lab-scale gas-solid fluidization column. Four different flow regimes, i.e., fixed-bed flow regime, bubbling-flow regime, slugging-flow regime, and turbulent-flow regime, and three intermediate transition velocities, i.e., minimum fluidizing velocity or minimum bubbling velocity, minimum slugging velocity, and minimum turbulent velocity, were successfully identified. The method based on the analysis of heat flux sensor measurements allowed to determine accurately the different flow regimes and the transition velocities.
中文翻译：
通过微箔热通量传感器在气固流化床中的流动状态
首次使用微箔热通量传感器研究了气固流化床中的流态转变。通过统计和状态空间方法分析热通量信号的时间序列。实验测量在实验室规模的气固流化柱中进行。四种不同的流态，即固定床流态、鼓泡流态、段击流态和湍流态，以及三种中间过渡速度，即最小流化速度或最小鼓泡速度、最小段塞流速度和最小湍流速度，已成功识别。基于热通量传感器测量分析的方法可以准确地确定不同的流动状态和过渡速度。
更新日期：2021-11-23
中文翻译：
通过微箔热通量传感器在气固流化床中的流动状态
首次使用微箔热通量传感器研究了气固流化床中的流态转变。通过统计和状态空间方法分析热通量信号的时间序列。实验测量在实验室规模的气固流化柱中进行。四种不同的流态，即固定床流态、鼓泡流态、段击流态和湍流态，以及三种中间过渡速度，即最小流化速度或最小鼓泡速度、最小段塞流速度和最小湍流速度，已成功识别。基于热通量传感器测量分析的方法可以准确地确定不同的流动状态和过渡速度。
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