Skip to main content
SpringerLink
Log in

Dynamic simulation of the water-steam flow in a supercritical once-through boiler

  • Published:
Journal of Mechanical Science and Technology Aims and scope Submit manuscript

Abstract

Once-through steam generator systems with supercritical fluids are applied to achieve large capacity and high efficiency in power generation systems. A supercritical fluid is considered as a single-phase substance, but properties of the fluid sharply change near the pseudo point, where specific heat of the fluid reaches its maximum at the corresponding pressure. Therefore, properties calculation and correlations of the heat transfer coefficient and pressure drop have to be evaluated carefully to predict the dynamic behavior. In this study, a 1-dimensional discretized dynamic model was developed for the dynamic simulation of the once-through boiler with supercritical fluids. The mass, momentum and the energy balance were solved in each cell. Validation of the model was checked against the experimental data for the single tube, and the dynamic behavior was simulated for the case of the simple step disturbance. After checking the single tube, this model was applied to the water-steam flow system of the commercial 500 MWe once-through boiler. The steady state values were compared with the design data. To simulate the dynamic behavior of the once-through boiler system, the feed water flow rate and the heat duty of the evaporator were changed as the disturbance. Finally, the operation simulation of the water-steam flow of the once-through boiler was performed for the case of dynamic step-down from the supercritical pressure to the subcritical pressure.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. J. Adams, D. R. Clark, J. R. Louis and J. P. Spanbauer, Mathematical model of once-through boiler dynamics, IEEE Trans. on Power Systems, 84 (1965) 146–156.

    Article  Google Scholar 

  2. A. Ray and H. F. Bowman, A nonlinear dynamic model of a once-through subcritical steam generator, ASME Trans. on Dynamic System, Measurement, and Control, 98 (1976) 332–339.

    Article  Google Scholar 

  3. J. M. Jensen and H. Tummescheit, Moving boundary models for dynamic simulations of two-phase flows, Proc. of the 2nd Int. Modelica Conference, Oberpfaffenhofen, Germany (2002) 235–244.

    Google Scholar 

  4. S. Kim and S. Choi, Dynamic simulation of the water-steam system of once-through boilers (sub-critical power boiler case), Transactions of the Korean Society of Mechanical Engineers-B, 41 (2017) 353–363 (in Korean).

    Article  Google Scholar 

  5. G. Go and U. C. Moon, A water-wall model of supercritical once-through boilers using lumped parameter method, J. Electr. Eng. Technol., 9 (2014) 1900–1908.

    Article  Google Scholar 

  6. M. N. Dumont and G. Heyen, Mathematical modelling and design of an advanced once-through heat recovery steam generator, Computer and Chemical Engineering, 28 (2004) 651–660.

    Article  Google Scholar 

  7. Y. Q. Li and T. J. Ren, Moving boundary modeling study on supercritical boiler evaporator: By using enthalpy to track moving boundary location, Power and Energy Engineering Conference, Wuhan, China (2009) 1–4.

    Google Scholar 

  8. Y. F. Timo, P. Koykka and Y. Majanne, Generalized dynamic water side model for a once-through benson boiler, The 18 th IFAC World Congress, Milano, Italy (2011) 7049–7054.

    Google Scholar 

  9. J. Pan, G. Wu and D. Yang, Thermal-hydraulic calculation and analysis on water wall system of 600 MW supercritical CFB boiler, Applied Thermal Engineering, 82 (2015) 225–236.

    Article  Google Scholar 

  10. J. Pan, D. Yang, G. Chen, X. Zhou and Q. Bi, Thermal-hy draulic analysis of a 600MW supercritical CFB boiler with low mass flux, Applied Thermal Engineering, 32 (2012) 41–48.

    Article  Google Scholar 

  11. X. Zhu, W. Wang and W. Xu, A study the hydrodynamics characteristics of a vertical water wall in a 2953t/h ultrasupercritical pressure boiler, International J. of Heat and Mass Transfer, 86 (2015) 404–414.

    Article  Google Scholar 

  12. Y. Fan, Z. Xu and L. Chen, Model and simulation of steam generator in supercritical once through boiler (I), Proceedings of the CSEE, 18 (4) (1998) 246–253 (in Chinese).

    Google Scholar 

  13. Y. Fan, Z. Xu and L. Chen, Model and simulation of steam generator in supercritical once through boiler (II), Proceedings of the CSEE, 18 (5) (1998) 350–356 (in Chinese).

    Google Scholar 

  14. A. Chaibakhsh, A. Ghaffari and A. A. Moosavian, A simulated model for a once-through boiler by parameter adjustment based on genetic algorithms, Simulation Modelling Practice and Theory, 15 (2007) 1029–1051.

    Article  Google Scholar 

  15. K. Y. Lee, J. S. Heo, J. A. Hoffman, S. H. Kim and W. H. Jung, Neural network-based modeling for a large-scale power plant, Power Engineering Society General Meeting, IEEE (2007) 1–8.

    Google Scholar 

  16. X. J. Liu, X. B. Kong, G. L. Hou and J. H. Wang, Modeling of a 1000MW power plant ultra-supercritical boiler system using fuzzy-neural network method, Energy Conversion and Management, 65 (2013) 518–527.

    Article  Google Scholar 

  17. J. Kurki, Simulation of thermal hydraulic at supercritical pressures with APROS, IYNC, Interlake, Switzerland, 145.1-145.8 (2008).

    Google Scholar 

  18. Y. Li, D. Lu, Y. Liu and X. Zeng, Numerical analysis on supercritical flow instabilities using APROS, Nuclear Engineering and Design, 277 (2014) 154–162.

    Article  Google Scholar 

  19. I. L. Pioro, R. B. Duffey and T. J. Dumouchel, Hydraulic resistance of fluids flowing in channels at supercritical pressures (survey), Nuclear Engineering and Design, 231 (2004) 187–197.

    Article  Google Scholar 

  20. I. L. Pioro, H. F. Khartabil and R. B. Duffey, Heat transfer to supercritical fluids flowing in channels-empirical correlations (survey), Nuclear Engineering and Design, 230 (2004) 69–91.

    Article  Google Scholar 

  21. S. Kim and S. Choi, Practical suggestion for calculating supercritical water-steam properties, Transactions of the Korean Society of Mechanical Engineers-B, 40 (2016) 809–814 (in Korean).

    Article  Google Scholar 

  22. Y. Yan, B. Chen and W. Wang, Iterative computation of water and steam density based on the third zone of IAPWSIF97, J. of Liaoning University of Petroleum and Chemical Technology, 27 (4) (2007) 38–40 (in Chinese).

    Google Scholar 

  23. X. Zhang, L. Sun, G. Zhang, X. Gao and S. Wang, Computation methods of function v(P, T) for region 3 based on IAPWS-IF97 formulation, Energy Conservation Technology, 31 (5) (2013) 392–396 (in Chinese).

    Google Scholar 

  24. J. Licht, M. Anderson and M. Corradini, Heat transfer to water at supercritical pressures in a circular and square annular flow geometry, Heat and Fluid Flow, 29 (2008) 156–166.

    Article  Google Scholar 

  25. F. P. Incropera, D. P. Dewitt, T. L. Bergman and Lavine, Fundamentals of Heat and Mass Transfer, Wiley, New York, USA (2008).

    Google Scholar 

  26. J. L. H. P. Sallevelt, J. A. M. Withag, E. A. Bramer, D. W. F. Brilman and G. Brem, One-dimensional model for heat transfer to a supercritical water flow in tube, J. of Supercritical Fluids, 68 (2012) 1–12.

    Article  Google Scholar 

  27. H. Sweson, J. Carver and C. Kakarala, Heat transfer to supercritical water in smooth-bare tubes, J. of Heat Transfer, Transaction ASME, Series C, 87 (1965) 477–484.

    Article  Google Scholar 

  28. K. Yamagata, K. Nishikawa, S. Hasegawa, T. Fujii and S. Ypshida, Forced convective heat transfer to supercritical water flowing in tube, International J. of Heat and Fluid Flow, 29 (2008) 156–166.

    Article  Google Scholar 

  29. S. Mokry, I. Pioro, A. Farah, K. King, S. Gupta and P. Kirillov, Development of supercritical water heat-transfer correlation for vertical bare tubes, Nuclear Engineering and Design, 241 (2011) 1126–1136.

    Article  Google Scholar 

  30. W. Chen and X. Fang, A new heat transfer correlation for supercritical water flowing in vertical tubes, International J. of Heat and Mass Transfer, 78 (2014) 156–160.

    Article  Google Scholar 

  31. I. Pioro and S. Mokry, Thrmophysical Properties at Critical and Supercritical Pressure, Heat Transfer-Theoretical Analysis, Experimental Investigations and Industrial System, A. Belmiloudi (Ed.), In Tech, Rileka, Croatia (2011).

    Google Scholar 

  32. S. Kim, S. Choi and J. Yang, Dynamic simulation of a circulating fluidized bed boiler system Part I: Description of the dynamic system and transient behavior of sub-models, J. of Mechanical Science and Technology, 30 (2016) 5781–5792.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea

    Seongil Kim & Sangmin Choi

Authors
  1. Seongil Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Sangmin Choi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Sangmin Choi.

Additional information

Recommended by Associate Editor Seong Hyuk Lee

Seong-il Kim received his M.S. from KAIST in 2014. Mr. Kim is currently a Ph.D. candidate at the Department of Mechanical Engineering at KAIST in Daejeon, Korea. His research interests include dynamic simulation of USCCFB boiler system.

Sangmin Choi is a Professor of Mechanical Engineering at Korea Advanced Institute of Science and Technology (KAIST), since 1985. His research interests include power generation systems, iron-making process, and solid fuel combustion.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kim, S., Choi, S. Dynamic simulation of the water-steam flow in a supercritical once-through boiler. J Mech Sci Technol 31, 4965–4975 (2017). https://doi.org/10.1007/s12206-017-0945-z

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12206-017-0945-z

Keywords

Search

Navigation