SimInTech using in thermal energy calculations: problems and solutions

RELEVANCE. The use of domestic software systems in the energy industry is associated with the import substitution of foreign programming platforms. Currently, the SimInTech dynamic modeling environment for technical systems is widely used for modeling processes in the thermal power industry. THE PURPOSE. To describe the methodology for modeling the scheme of a Rankine steam turbine installation in the SimInTech dynamic modeling environment. Create blocks of a submodel for calculating a steam turbine, pump, and condenser. To develop a user-friendly interface for input of initial data and visual visualization of calculation results. METHODS. The developed method for calculating the scheme of a steam turbine installation in the SimInTech environment is based on the scheme of a general model. Separate submodels of turbine, condenser and pump design schemes are being developed. The Properties of substances library is used to determine the thermodynamic parameters of water and steam. RESULTS. The article describes a method for modeling a Rankine cycle circuit, and shows the features of creating submodels of thermal power elements of circuits. For each element of the submodel, the source data is visualized in a convenient format, and the intermediate results are monitored over communication lines. The results of calculating the thermodynamic parameters and performance indicators of the scheme are recorded in a separate file, which allows you to analyze the information obtained for various source data variants. CONCLUSION. The developed submodels of the turbine, pump and condenser make it possible to perform thermodynamic calculation of the elements with a high degree of accuracy. A model of a steam turbine installation is created from individual elements of the submodels. It is possible to implement a more complex model by creating additional submodels, such as an intermediate superheater, heaters and other elements.

1. The simulation environment official website SimInTech URL https://simintech.ru.

2. Alexandrov, A. A. Mathematical Packages — New Approaches in the Study and Calculation of Thermodynamics Processes / A. A. Alexandrov, K. A. Orlov, and V. F. Ochkov // Izvestiya Vysshikh Uchebnykh Zavedeniy. Problemy Energetiki. – 2005. – No. 11-12. – Pp. 80 86. – EDN KJUSBB.

3. Yudenkov, V. S. Modeling using the MATLAB + Simulink system in the educational process / V. S. Yudenkov, O. V. Bugai // Proceedings of BSTU. Series 4: Print and Media Technologies. – 2021. – No. 1(243). – Pp. 5-11. – EDN CVDLQL.

4. Solodov, A. P. Bubble Boiling Differential Model / A. P. Solodov // High Temperature Heat Physics. – 2007. – Vol. 45, No. 2. – Pp. 226-234. – EDN HZUMKP.

5. The pipeline system calculation and modeling in the MATLAB simulink simscape package / L. V. Ponosova, D. N. Cheremnykh, A. A. Kaverin, and E. V. Tashlykova // Fundamental Research. – 2014. – No. 11-7. – Pp. 1507-1511. – EDN SZUHFJ.

6. Solodov, A. P. Contact Condensation modeling/ A. P. Solodov, M. S. Gorpinyak // Proceedings of the Sixth Russian National Conference on Heat Exchange, Moscow, October 27– 31, 2014. – Moscow: MEI Publishing House, 2014. – Pp. 760-763. – EDN VDJAVP.

7. Solodov, A. P. The heat and mass exchanger differential model / A. P. Solodov // Thermal processes in engineering. – 2010. – Vol. 2, No. 8. – Pp. 364-370. – EDN MUJORH.

8. Rysbek, M. B. Thermal and Electrical Processes Modeling in a Steam Turbine Process Flow Diagram in MATLAB / M. B. Rysbek, A. B. Stepanov // 72nd All-Russian Scientific and Technical Conference Dedicated to Radio Day: Proceedings of the Conference, St. Petersburg, April 20–28, 2017. – St. Petersburg: St. Petersburg State Electrotechnical University "LETI" named after V.I. Ulyanov (Lenin), 2017. – Pp. 47-48. – EDN ZONWKZ.

9. Savkina D.I., Gosteva L.O., Pogrebissky M.Ya. Experience in using the domestic simulation environment SimInTech in the educational process of the Department of Automated Electric Drive at the National Research University "MPEI"/ Materials of the III All-Russian Scientific and Methodological Conference. Moscow, 2023. pp. 76-79.

10. Nikonorov, A. N. Thermal Power Plants modeling in the SimInTech Software Package / A. N. Nikonorov, A. V. Korovkin, and R. A. Shitov // State and Prospects of Development of Electrical and Thermal Engineering (Benardos Readings) : Proceedings of the International (XX All-Russian) Scientific and Technical Conference, Ivanovo, May 29–31, 2019. Volume II. – Ivanovo: Ivanovo State Power Engineering University named after V.I. Lenin, 2019. – Pp. 12-15. – EDN JZSSPA.

11. Manakina M.O., Muravyov I.K. Modeling of the K-300-240 Steam Turbine in the SimInTech Environment/ Materials of the VI All-Russian Scientific Conference with International Participation. Tolyatti, 2023, pp. 80-88.

12. Korznikova, K. N. Experience in using Engee and SIMINTECH environments for modeling transient processes in electrical circuits / K. N. Korznikova, V. A. Trufanova // Current Issues of Innovative Development in the Arctic Region of the Russian Federation : Collection of Articles from the VI All-Russian Scientific and Practical Conference, Severodvinsk, November 18–30, 2024. – Arkhangelsk: Northern (Arctic) Federal University named after M.V. Lomonosov, 2025. – Pp. 497-501. – EDN TWLYNX.

13. Vaytelenok, L. V. Relay Protection Simulation Modeling in the SIMINTECH Environment / L. V. Vaytelenok // Energetika, Informatika, Innovatsii-2021 : Collection of Papers of the XI International Scientific and Technical Conference, Smolensk, October 28-29, 2021. Volume 1. – Smolensk: Universum; Branch of the National University of Electronic Technology in Smolensk, 2021. – Pp. 83-88. – EDN DAGSDT.

14. The solar panel orientation system modeling based on fuzzy logic in the SimInTech visual modeling environment / A.V. Chubar, V. V. Ustimenko, L. A. Mikhailenko [et al.] // Siberian Aerospace Journal. – 2021. – Vol. 22, No. 1. – pp. 47-60. – DOI 10.31772/2712-8970-2021-22-1-47-60. – EDN GRMJNR.

15. Bashkirov, G. A. Nuclear Power Plant Design Solutions Simulation Modeling in the SIMINTECH Dynamic Modeling Environment for Technical Systems / G. A. Bashkirov, A. D. Danilov // Intelligent Information Systems: Proceedings of the International Scientific and Practical Conference, Voronezh, April 01–02, 2025. – Voronezh: Voronezh State Technical University, 2025. – Pp. 45-50.

16. Larkina, T. S. On the Robotic Systems Development for Optimizing and Accelerating the Inspection of Complex Metal Structures / T. S. Larkina, P. V. Kazakov, and D. Yu. Studnev // Bulletin of the Belarusian-Russian University. – 2025. – No. 1(86). – Pp. 52-61. – DOI 10.24412/2077-8481-2025-1-52-61. – EDN NORSOR.

17. Matsko, K. O. The SIMINTECH modeling environment application in the training of engineering personnel in the power industry / K. O. Matsko, A. D. Moiseeva // Radioelectronics, Electrical Engineering, and Power Engineering: Abstracts of Papers, Moscow, March 12–13, 2020. – Moscow: RADUGA Center for Printing Services LLC, 2020. – P. 190. – EDN XNLSJC.

18. Borodai, I. Yu. Using the SimInTech Dynamic Modeling Environment in Modeling / I. Yu. Borodai // Gagarin Readings 2018: Collection of Abstracts of the XLIV International Youth Scientific Conference, Moscow-Akhtubinsk-Baikonur, April 17-20, 2018. Volume 1. – Moscow Akhtubinsk-Baikonur: Moscow Aviation Institute (National Research University), 2018. – P. 306. – EDN ORNEVF.