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Wang X, Song M, Li S, Huang Y. Dynamic behaviors of bubble formation on submerged micro-capillary under constant flow conditions. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Abstract
This paper describes a design procedure for a collaborative control structure in Plant Wide Control (PWC), taking into account the existing controllable parameters as a novelty in the procedure. The collaborative control structure includes two layers, supervisory and regulatory, which are determined according to the dynamics hierarchy obtained by means of the Hankel matrix. The supervisory layer is determined by the main dynamics of the process and the regulatory layer comprises the secondary dynamics and controllable parameters. The methodology proposed is applied to a wastewater treatment plant, particularly to the Benchmark Simulation Model No 1 (BSM1) for the activated sludge process, comparing the results with the use of a Model Predictive Controller in the supervisory layer. For determining controllable parameters in the BSM1 control, a new specific oxygen mass transfer model in the biological reactor has been developed, separating the kLa volumetric mass transfer coefficient into two controllable parameters, kL and a.
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Li D, Guo K, Li J, Huang Y, Zhou J, Liu H, Liu C. Hydrodynamics and bubble behaviour in a three-phase two-stage internal loop airlift reactor. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2018.03.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Experimental study and modeling of CO 2 absorption into diethanolamine solutions using stirrer bubble column. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Pan H, Chen XZ, Liang XF, Zhu LT, Luo ZH. CFD simulations of gas–liquid–solid flow in fluidized bed reactors — A review. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.05.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li Y, Wang S, Sun B, Arowo M, Zou H, Chen J, Shao L. Visual study of liquid flow in a rotor-stator reactor. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.05.046] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hossain MI, Pang QX, Pang SQ, Yang Y, Lau R. Effect of Orifice Surface Roughness on the Liquid Weeping in Bubble Columns. Ind Eng Chem Res 2010. [DOI: 10.1021/ie101182x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Md. Iqbal Hossain
- Nangyang Technological University, Singapore, School of Chemical and Biomedical Engineering, 62 Nanyang Drive, Singapore 637459
| | - Qing Xi Pang
- Nangyang Technological University, Singapore, School of Chemical and Biomedical Engineering, 62 Nanyang Drive, Singapore 637459
| | - Si Qi Pang
- Nangyang Technological University, Singapore, School of Chemical and Biomedical Engineering, 62 Nanyang Drive, Singapore 637459
| | - Yanhui Yang
- Nangyang Technological University, Singapore, School of Chemical and Biomedical Engineering, 62 Nanyang Drive, Singapore 637459
| | - Raymond Lau
- Nangyang Technological University, Singapore, School of Chemical and Biomedical Engineering, 62 Nanyang Drive, Singapore 637459
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A Theoretical Model for the Size Prediction of Single Bubbles Formed under Liquid Cross-flow. Chin J Chem Eng 2010. [DOI: 10.1016/s1004-9541(09)60128-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hossain MI, Pang SQ, Pang QX, Yang Y, Lau R. Study of Liquid Weeping at a Tapered Orifice in a Bubble Column Reactor by a Computer-Aided Image Analysis Algorithm. Ind Eng Chem Res 2010. [DOI: 10.1021/ie901516f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Md. Iqbal Hossain
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459
| | - Si Qi Pang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459
| | - Qing Xi Pang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459
| | - Yanhui Yang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459
| | - Raymond Lau
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459
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Macchi A, Bi H, Grace JR, McKnight CA, Hackman L. Effect of Gas Density on the Hydrodynamics of Bubble Columns and Three-Phase Fluidized Beds. CAN J CHEM ENG 2008. [DOI: 10.1002/cjce.5450810368] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Knopf FC, Ma J, Rice RG, Nikitopoulos D. Pulsing to improve bubble column performance: I. Low gas rates. AIChE J 2006. [DOI: 10.1002/aic.10698] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shyu JC, Ding PP, Cheng WF, Chen PH. Air Bubble Generation Through a Submerged Micro-Hole. Chem Eng Res Des 2002. [DOI: 10.1205/026387602317446399] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li Y, Yang G, Zhang J, Fan LS. Numerical studies of bubble formation dynamics in gas–liquid–solid fluidization at high pressures. POWDER TECHNOL 2001. [DOI: 10.1016/s0032-5910(00)00393-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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