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Ding H, Ouyang Z, Su K, Zhang J. Investigation of gas-solid flow characteristics in a novel internal fluidized bed combustor by experiment and CPFD simulation. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2023.103962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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2
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Deng B, Zhou T, Zhang Y, Zhang M, Huang Z, Yang H. Hydrodynamic characteristics in the full-loop circulating fluidized bed under load regulation. Part 2: Simulation. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Yang Z, Lu X, Lu J, Li J, Wang Q, Kang Y, Dong Z, Zhang R, Jue J, Meng B. Investigation on the internal and external solid flow rates in large-scale circulating fluidized bed with different layouts of suspended heating surfaces. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Bandara JC, Moldestad BM, Eikeland MS. Circulating fluidized bed reactors – Experimental optimization of loopseal aeration and parametric study using CPFD simulations. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Computational modeling of high pressure bubbling fluidized bed hydrodynamics using ilmenite particles. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Shen X, Li J, Jia L, Wang Y, Guo B, Qiao X, Yang H, Zhang M, Jin Y. Numerical simulation of NO and SO 2 emission dynamic characteristics during thermal start-up of CFB boiler. PARTICULATE SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1080/02726351.2022.2032889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xin Shen
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Jing Li
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Li Jia
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Yanlin Wang
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Baihe Guo
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xiaolei Qiao
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Hairui Yang
- State Key Lab of Power Systems, Tsinghua University, Beijing, China
| | - Man Zhang
- State Key Lab of Power Systems, Tsinghua University, Beijing, China
| | - Yan Jin
- College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, China
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Tu Q, Wang H, Ocone R. Application of three-dimensional full-loop CFD simulation in circulating fluidized bed combustion reactors – A review. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Huo P, Li X, Liu Y, Qi H. Investigation on influences of loose gas on gas-solid flows in a circulating fluidized bed (CFB) reactor using full-loop numerical simulation. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2020-0119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The influences of loose gas on gas-solid flows in a large-scale circulating fluidized bed (CFB) gasification reactor were investigated using full-loop numerical simulation. The two-fluid model was coupled with the QC-energy minimization in multi-scale theory (EMMS) gas-solid drag model to simulate the fluidization in the CFB reactor. Effects of the loose gas flow rate, Q, on the solid mass circulation rate and the cyclone separation efficiency were analyzed. The study found different effects depending on Q: First, the particles in the loop seal and the standpipe tended to become more densely packed with decreasing loose gas flow rate, leading to the reduction in the overall circulation rate. The minimum Q that can affect the solid mass circulation rate is about 2.5% of the fluidized gas flow rate. Second, the sealing gas capability of the particles is enhanced as the loose gas flow rate decreases, which reduces the gas leakage into the cyclones and improves their separation efficiency. The best loose gas flow rates are equal to 2.5% of the fluidized gas flow rate at the various supply positions. In addition, the cyclone separation efficiency is correlated with the gas leakage to predict the separation efficiency during industrial operation.
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Affiliation(s)
- Pengju Huo
- Hydrocarbon High-efficiency Utilization Technology Research Center , Shaanxi Yanchang Petroleum Co. Ltd , Xi’an 710075 , P. R. China
| | - Xiaohong Li
- Hydrocarbon High-efficiency Utilization Technology Research Center , Shaanxi Yanchang Petroleum Co. Ltd , Xi’an 710075 , P. R. China
| | - Yang Liu
- Key Laboratory for Thermal Science & Power Engineering of Ministry of Education, Tsinghua University , Beijing 100084 , P. R. China
| | - Haiying Qi
- Key Laboratory for Thermal Science & Power Engineering of Ministry of Education, Tsinghua University , Beijing 100084 , P. R. China
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Su X, Wang C, Lan X, Pei H, Mao X, Gao J. Flow of High Solids Density Suspensions in an 18 m High Circulating Fluidized Bed. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xin Su
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Chengxiu Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xingying Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Huajian Pei
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xiaoyang Mao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Jinsen Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
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Su X, Wang C, Pei H, Li J, Lan X, Gao J. Experimental Study of Solids Motion in an 18 m Gas–Solids Circulating Fluidized Bed with High Solids Flux. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05462] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xin Su
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Chengxiu Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Huajian Pei
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Jingya Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xingying Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Jinsen Gao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
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