ABSTRACT
As the key equipment of delayed coking unit, the coking chamber generally uses the cycle heating and cooling process to produce products. Due to the large temperature rise and fall process of the cycle, the coke chamber runs under harsh thermal conditions for a long time, and the thermal stress generated by temperature fluctuation is one of the main reasons for the failure of the coke chamber structure. However, the working state of coking chamber is complex, and the traditional numerical method cannot realize timely monitoring, so it is of great practical significance to study the new method to realize timely monitoring. In this paper, POD-BP reduced order models under the second and third thermal boundary conditions are established by studying the coke chamber in the production process. The models are applied to the inversion of the spatial heat flux distribution and the calculation of the temperature field of the coke chamber, which greatly improves the calculation speed of the inversion. It has been proved that the proposed method has the advantages of good real-time performance, high precision, strong anti-interference ability and strong operability, which provides a detection method for the real-time reconstruction of temperature field and production state of coke chamber.
KEYWORDS
PAPER SUBMITTED: 2022-10-17
PAPER REVISED: 2022-11-23
PAPER ACCEPTED: 2022-11-25
PUBLISHED ONLINE: 2023-01-07
THERMAL SCIENCE YEAR
2023, VOLUME
27, ISSUE
Issue 5, PAGES [3513 - 3524]
- Xia, Z. H., et al., Heat Transfer and Stress Analysis of Coke Drum for a Complete Operating Cycle, Journal of Pressure Vessel Technology, 132 (2010), 5
- Cohn, M., et al., Service Experience and Fitness-for-service in Power and Petroleum Processing, Proceedings, ASME Pressure Vessels and Piping Conference, American Society of Mechanical Engineers, Seattle, Wash., USA, 2000, Vol. 411
- Li, Q., et al., Prediction of Critical Properties and Boiling Point of Fluorine/Chlorine-Containing Refrigerants, International Journal of Refrigeration, 143 (2022), Nov., pp. 28-36
- Jie, Y. H., et al., Molecular Simulation of Thermal Energy Storage of Mixed CO2/IRMOF-1 Nanoparticle Nanofluid, International Journal of Heat and Mass Transfer, 125 (2018), Oct., pp. 1345-1348
- Ellis, P. J., et al., Tutorial: Delayed Coking Fundamentals, Proceedings, AICHE Spring National Meeting, New Orleans, La., USA, 1998
- Yang, F., et al., A Simplified Tikhonov Regularization Method for Determining the Heat Source, Applied Mathematical Modelling, 34 (2010), 11, pp. 3286-3299
- Beck, J. V., Inverse Heat Conduction, Ill-Posed Problems, A Wiley-Interscience Publication, New York, USA, 1985
- Huang, C. H., et al., An Inverse Geometry Problem in Identifying Irregular Boundary Configurations, International Journal of Heat and Mass Transfer, 40 (1997), 9, pp. 2045-2053
- Sladewski, et al., Optimization of Combustion Process in Coal-Fired Power Plant with Utilization of Acoustic System for in-Furnace Temperature Measurement, Applied Thermal Engineering, 123 (2017), Aug., pp. 711-720
- Jaremkiewicz, M., et al., Measuring Transient Temperature of the Medium in Power Engineering Machines and Installations, Applied Thermal Engineering, 29 (2009), 16, pp. 3374-3379
- Agnieszka, et al., Regularization of the Inverse Heat Conduction Problem by the Discrete Fourier Transform, Inverse Problems in Science and Engineering, 24 (2015), 2, pp. 195-212
- Tikhonov, A. N., On the Solution of Ill-Posed Problems and the Method of Regularization, Russian Academy of Sciences, Doklady Akademii Nauk, 151 (1963), 3
- Cheng, W., et al., A Regularization Method for Solving the Radially Symmetric Backward Heat Conduction Problem, Applied Mathematics Letters, 30 (2014), Apr., pp. 38-43
- Yang, F., et al., A Simplified Tikhonov Regularization Method for Determining the Heat Source, Applied Mathematical Modelling, 34 (2010), 11, pp. 3286-3299
- Xiong, X., et al., A Numerical Method for Identifying Heat Transfer Coefficient, Applied Mathematical Modelling, 34 (2010), 7, pp. 1930-1938
- Xiong, X., et al., A Tikhonov-Type Method for Solving a Multidimensional Inverse Heat source Problem in an Unbounded Domain, Journal of Computational and Applied Mathematics, 236 (2012), 7, pp. 1766-1774
- Cheng, W., et al., A Modified Tikhonov Regularization Method for a Spherically Symmetric 3-D Inverse Heat Conduction Problem, Mathematics and Computers in Simulation, 75 (2007), 3-4, pp. 97-112
- Alifanov, O. M., Inverse Heat Transfer Problems, Springer Science and Business Media, Berlin, Germany, 2012
- Aling, H., et al., Non-Linear Model Reduction for Simulation and Control of Rapid Thermal Processing, Proceedings, American Control Conference (Cat. No. 97CH36041), IEEE, Piscataway, N. J., USA, 1997, Vol. 4
- Alonso, D., et al., Robust Reduced Order Modelling of Heat Transfer in a Back Step Flow, International Journal of Heat and Mass Transfer, 52 (2009), 5-6, pp. 1149-1157
- Raghupathy, et al., Boundary-Condition-Independent Reduced-Order Modelling of Complex Electronic Packages by POD-Galerkin Methodology, IEEE Transactions on Components and Packaging Technologies, 33 (2010), 3, pp. 588-596
- Notghi, et al., Adaptive Reduced-Basis Generation for Reduced-Order Modelling for the Solution of Stochastic non-Destructive Evaluation Problems, Computer Methods in Applied Mechanics and Engineering, 310 (2016), Oct., pp. 172-188
- Mcculloch, W. S., et al., A Logical Calculus of the Ideas Immanent in Nervous Activity, The Bulletin of Mathematical Biophysics, 5 (1943), Dec., pp. 115-133
- Kim, H. T., et al., Application of the Finite Volume Method to the Radial Conduction Model of the CATHENA code, Annals of Nuclear Energy, 33 (2006), 10, pp. 924-931
- Li, J., et al., Brief Introduction of Back Propagation (BP) Neural Network Algorithm and Its Improvement, Springer, Heidelberg, Germany, 2012
- Jin, W., et al., The Improvements of BP Neural Network Learning Algorithm, WCC 2000-ICSP 2000, Proceedings, 5th International Conference on Signal Processing Proceedings, 16th World Computer Congress, IEEE, Piscataway, N. J., USA, 2000, Vol. 3
- Hansen, P. C., Analysis of Discrete Ill-Posed Problems by Means of the L-Curve, Siam Review, 34 (1992), 4, pp. 561-580