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Han FY, Wang M, Ma XB, Yin LJ, Chen DZ, Liu ZQ, Zhang RN. Numerical simulation of heat transfer properties of large-sized biomass particles during pyrolysis process. Heliyon 2023; 9:e21255. [PMID: 37954285 PMCID: PMC10637941 DOI: 10.1016/j.heliyon.2023.e21255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 11/14/2023] Open
Abstract
During the pyrolysis process of large particles, the conduction between particles cannot be ignored. In the present work, a numerical simulation model for the pyrolysis of biomass particles was established, which takes into account the conduction within the particles. Based on this model, the temperature distribution inside the particle during the pyrolysis process was determined and the effects of particle size, moisture content, and gas velocity on heat transfer characteristics were analyzed. The results showed that the temperatures at different positions of the particles along the inflow direction were quite different, and the maximum temperature difference inside the particles was about 146.7 K for a particle diameter of 10 mm and a velocity of 0.2 m/s. During the pyrolysis process of biomass particles, there were two peaks of Nusselt number. The increase of moisture content prolonged the pyrolysis time. The pyrolysis. time of particles with moisture content of 15 % was about 1.5 times longer than that of dry particles when the particle diameter was 10 mm. Increasing the particle size decreased the difference between the two peaks and increased the time interval between the two peaks. Increasing the gas velocity can improve the heat transfer, but the effect of too high gas velocity on improving the heat transfer is limited. The present study is of great importance for a detailed understanding of the pyrolysis process of biomass particles.
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Affiliation(s)
- Fei-yang Han
- Thermal & Environmental Engineering Institute, Tongji University, Shanghai 200092, China
| | - Meng Wang
- Thermal & Environmental Engineering Institute, Tongji University, Shanghai 200092, China
| | - Xiao-bo Ma
- Thermal & Environmental Engineering Institute, Tongji University, Shanghai 200092, China
- Shanghai Engineering Research Center of Multi-source Solid Wastes Co-processing and Energy Utilization, Shanghai 200092, China
| | - Li-jie Yin
- Thermal & Environmental Engineering Institute, Tongji University, Shanghai 200092, China
- Shanghai Engineering Research Center of Multi-source Solid Wastes Co-processing and Energy Utilization, Shanghai 200092, China
| | - De-zhen Chen
- Thermal & Environmental Engineering Institute, Tongji University, Shanghai 200092, China
- Shanghai Engineering Research Center of Multi-source Solid Wastes Co-processing and Energy Utilization, Shanghai 200092, China
| | - Ze-qing Liu
- Shanghai Environmental Sanitation Engineering Design Institute Co., Ltd, Shanghai 200232, China
| | - Rui-na Zhang
- Shanghai Environmental Sanitation Engineering Design Institute Co., Ltd, Shanghai 200232, China
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Jian B, Gao X. Investigation of spherical and non-spherical binary particles flow characteristics in a discharge hopper. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2023.104011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Ma H, Zhou L, Liu Z, Chen M, Xia X, Zhao Y. A review of recent development for the CFD-DEM investigations of non-spherical particles. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Zhou L, Ma H, Liu Z, Zhao Y. Development and verification of coarse‐grain CFD‐DEM for non‐spherical particles in a gas‐solid fluidized bed. AIChE J 2022. [DOI: 10.1002/aic.17876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lianyong Zhou
- Institute of Process Equipment, College of Energy Engineering Zhejiang University Hangzhou China
| | - Huaqing Ma
- Institute of Process Equipment, College of Energy Engineering Zhejiang University Hangzhou China
| | - Zihan Liu
- Institute of Process Equipment, College of Energy Engineering Zhejiang University Hangzhou China
| | - Yongzhi Zhao
- Institute of Process Equipment, College of Energy Engineering Zhejiang University Hangzhou China
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Xu X, Li C, Gao X. Coarse-Grained DEM–CFD Simulation of Fluidization Behavior of Irregular Shape Sand Particles. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaomeng Xu
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
- Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Cheng Li
- Department of Mechanical Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
- Department of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
| | - Xi Gao
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
- Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
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Lan B, Zhao P, Xu J, Zhao B, Zhai M, Wang J. CFD-DEM-IBM simulation of particle drying processes in gas-fluidized beds. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Hu Y, Zhou H, She X, Kou M, Wu S, Zhang Z, Shen Y. Numerical Simulation of Combustion Characteristics in the Dome Zone of the COREX Melter-Gasifier: The Effect of Rising Gas. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yifan Hu
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Heng Zhou
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xuefeng She
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
| | - Mingyin Kou
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Shengli Wu
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zongwang Zhang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yansong Shen
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
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