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| 1 | EMMS drag model for simulating a gas-solid fluidized bed of geldart B particles: Effect of bed model parameters and polydisperity显示文摘The energy minimization multi-scale(EMMS)is a heterogeneous drag model widely used to simulate gas-solid fluidized beds.In this work,we conducted computational fluid dynamics simulations of a gas-solid fluidized bed for Geldart B particles to compare the EMMS with the homogeneous Gidaspow drag model.The results from both the homogeneous and heterogeneous drag models were compared with literature experimental data on pressure drop and bed expansion.There was no noticeable difference in predicted bed characteristics in the slugging regime.However,in the turbulent regime,the EMMS model predicted slightly lower bed expansion than did the Gidaspow model.We evaluated the effects of solid-solid and solid-wall interaction parameters by varying the restitution and specularity coefficients.Bed expansion increases by a factor of 1.05-1.08 when the restitution coefficient increases from 0.9 to 0.99.The models predict a higher solid volume fraction and higher solid downflow velocity near the wall for a low specularity coefficient of 0.01 or 0.When we considered solid phases of different sizes to model polydisperity,the simulation predicted vertical segregation of 300,350,and 400μm in the fluidized region due to gravity.Furthermore,the drag models made similar predictions in bad characteristics from cold model simulation ofa polysilicon fluidized-bed reactor,although there was very little vertical segregation of solid particles for this case. | Krishnadash SKshetrimayum Seongho Park Chonghun Han Chul-Jin Lee | 2020 | Particuology2020，18，4： | 1 |
| 2 | Operational strategy to minimize operating costs in liquefied natural gas receiving显示文摘 | LEE Chul-Jin LIM Youngsub HAN Chonghun | 2012 | Korean J Chem Eng2012，29，4： | 1 |
| 3 | Optimization of recirculation operating in liquefied natural gas receiving terminal显示文摘 | Chansaem Park Chul-Jin Lee Youngsub Lim Sangho Lee Chonghun Han | 2010 | Journal of the Taiwan Institute of Chemical Engineers2010，，4： | 1 |
| 4 | Interactive plant simulation modeling for developing an operator training system in a natural gas pressure-regulating station显示文摘This study proposes a method of interactive plant simulation modeling which delivers the online simulated results to the field operators and induces them to take proper actions in the case of pre-identified accident scenarios in a chemical plant. The developed model integrates the real-time process dynamic simulation with 3DCFD accident simulation in a designed interface using object linking and embedding technology so that it can convey to trainees the online information of the accident which is not available in existing operator training systems.The model encompasses the whole process of data transfer till the end of the training at which a trainee operates an emergency shutdown system in a programmed model. In this work, an overall scenario is simulated which is from an abnormal increase in the main valve discharge(second)pressure due to valve malfunction to accidental gas release through the crack of a pressure recorder, and the magnitude of the accident with respect to the lead time of each trainee's emergency response is analyzed. The model can improve the effectiveness of the operator training system through interactively linking the trainee actions with the simulation model resulting in different accident scenarios with respect to each trainee's competence when facing an accident. | Yongseok Lee Changjun Ko Hodong Lee Kyeongwoo Jeon Seolin Shin Chonghun Han | 2017 | Petroleum Science2017，14，3： | 1 |
| 5 | Calibration transfer of near-infrared spectra based on compression of wavelet coefficients 显示文摘 | Jeongah Yoon Byungwoo Lee Chonghun Han | 2002 | Cheraometrics and Intelligent Laboratory Systems2002，64，1： | 1 |
| 6 | Meltindex modeling with support vector machines, partial leastsquares, and artificial neural networks 显示文摘 | Han In-Su Han Chonghun Chung Chang-Boek | 2005 | Journal ofApplied Polymer Science2005，95，4： | 1 |
| 7 | Plant-wide optimal byproduct gas distribution and holder level control in the iron and steel making process显示文摘 | Jeong Hwan Kim Heui-Seok Yi Chonghun Han | 2003 | Korean Journal of Chemical Engineering2003，，3： | 1 |
| 8 | Melt index modeling with support vector machines, partial least squares, and artificial neural networks 显示文摘 | Han In-Su Han Chonghun Chung Chang-Bock | 2005 | Journal of Applied Polymer Science2005，95，4： | 1 |
| 9 | Real-time classification of petroleum products using near-infrared spectra显示文摘 | Minjin Kim Young-Hak Lee Chonghun Han | 2000 | Computers and Chemical Engineering2000，，2： | 1 |
| 10 | State-of-charge Estimation for Lithium-ion Batteries Under Various Operating Conditions Using an Equivalent Circuit Model显示文摘 | Sungwoo Cho Hyeonseok Jeong Chonghun Han | | 0，，： | 1 |
| 11 | Industrial application of MILP based simultaneous compensation to a large scale byproduct gases net work in an iron and steel making plant显示文摘 | YI H S HAN Chonghun | 2004 | Industrial & Engi neering Chemistry Research2004，43，1： | 1 |
| 12 | Realtime classification of petroleum products using nearinfrared spectral显示文摘 | Kim Minjin Lee Young-Hak Han Chonghun | 2000 | Computers and Chemical Engineering2000，24，： | 1 |
| 13 | Plantwide optimal grade transition for an industrial high-density polyethylene plant显示文摘 | Yi Heui Seok Jeong Hwan Kim Chonghun Han | 2003 | Ind Eng Chem Res2003，12，1： | 1 |
| 14 | Process improvement methodology based on multivariate statistical analysis methods 显示文摘 | Young-Hak Lee Kwang Gi Min Chonghun Han | 2004 | Control Engineering Practice2004，12，： | 1 |
| 15 | Calibration transfer of near-infrared spectra based on compression of wavelet coefficients 显示文摘 | Jeongah Yoon Byungwoo Lee Chonghun Han | 2002 | Chemometrics and Intelligent Laboratory Systems 20022002，114，： | 1 |
| 16 | Intelligent Integrated plant Operations System for Six Sigma 显示文摘 | HAN Chonghun LEE Young- Hak | 2002 | Aanual Review in control2002，，26： | 1 |
| 17 | Real-time monitoring for a process with multiple operating modes显示文摘 | Dae-Hee Hwang Chonghun Han | 1999 | Control Engineering Practice1999，7，： | 1 |
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