Assessment of the influence of the crisis flow of a swirling flow on the thermohydraulic efficiency of shipboard nuclear power installations

Аuthors

Mitrofanova O. V.^{1, 2*}, Ivlev O. A.¹, Urtenov D. S.^1**, Fedorinov A. V.^{1, 2}

1. ,
2. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31, Kashirskoe shosse, Moscow, 115409, Russia

*e-mail: omitr@yandex.ru
**e-mail: urtenov_ds@nrcki.ru

Abstract

The specific differences between ship nuclear power installations and ground-based nuclear power plants with water-water reactors (VVER type) are considered. The directions of scientific research relevant to the substantiation of optimal design solutions to improve the efficiency and reliability of the ship’s nuclear power installations of the new generation are determined. Computational and theoretical studies on modeling of hydrodynamics and heat transfer processes in the channels of the thermal-hydraulic tract of the ship’s steam-producing installation are carried out. It is shown that the complex geometry of the curvilinear channels of the thermal-hydraulic path of the steam generating system has a significant impact on the efficiency of the transport nuclear power installation.

The scientific and applied significance of the proposed research is associated with the need to provide a wide range of operational changes in the power modes of the effective and safe operation of icebreaking nuclear power installations. The present research aimed at developing the principles of physical and mathematical modeling of complex vortex flows is necessary to optimize the constructive parameters of the elements of thermal power equipment of ship nuclear power installations of the new generation in order to ensure increased safety and reliability of their operation.

Keywords:

vortex flow, steam generating unit, heat and energy efficiency, chirality, vortici-ty, spiral-helix flow

References

1. Mitrofanova O. V., Ivlev O. A., Fedorinov A. V. O vozmozhnosti primeneniya sborok vitykh trub v parogeneriruyushhikh sistemakh transportnykh yadernykh energeticheskikh ustanovok [On the possibility of twisted tubes assemblies application in steam generating systems of transport nuclear power installations]. Teplovye protsessy v tekhnike – Thermal Processes in Engineering, 2018, vol. 10, no. 5-6, pp. 238–244. In Russ.

2. Mitrofanova O.V., Ivlev O.A., Urtenov D.S. The effect of flow swirling on the safety and reliability of nuclear power installations of new generation. Journal of Physics: Conference Series, 2018, vol. 980, no. 1, p. 012037. DOI: 10.1088/1742-6596/980/1/012037

3. Mitrofanova O.V., Pozdeeva I.G. Investigation of the acoustic oscillation self-adjustment mechanism in impinging swirling flows. Fluid Dynamics, 2015, vol. 50, no. 5, pp. 646-654.

4. Mitrofanova O.V., Pozdeeva I.G. K otsenke energeticheskogo balansa pri perekhode gidromekhanicheskoj sistemy k rezhimu rezonansnoj neustojchivosti [Towards the assessment of energy balance in hydro-mechanical system under condition of transition to the mode of resonant instability]. Teplovye protsessy v tekhnike – Thermal Processes in Engineering, 2017, vol. 9, no. 6, pp. 247–251. In Russ.

5. Mitrofanova O.V. On the structural similarity of stable forms of spiral-vortex motion. Journal of Engineering Physics and Thermophysics, 2017, vol. 90, no. 5, pp. 1119–1130.

6. Mitrofanova O.V., Bayramukov A.S., Urtenov D.S. Issledovanie protsessov vikhreobrazovaniya v slozhnykh kanalakh transportnykh yadernykh energeticheskikh ustanovok [Studying eddy generation processes in complex circuits of transport nuclear power plants]. Teplovye protsessy v tekhnike – Thermal Processes in Engineering, 2018, vol. 10, no. 7-8, pp. 274–281. In Russ.

7. Bayramukov А.S., Mitrofanova O.V. Modelirovanie protsessov gidrodinamiki i teploobmena v perekhodnykh rezhimakh raboty sudovykh yaderno-energeticheskikh ustanovok [Hydrodynamics and heat transfer simulations of marine nuclear power installations in transient modes]. Teplovye protsessy v tekhnike – Thermal Processes in Engineering, 2017, vol. 9, no. 5, pp. 211–216. In Russ.

8. Novikov I.I. Termodinamika [Thermodynamics]. Moscow: Mashinostroenie, 1984. 593 p. In Russ.

9. Novikov I.I., Skobelkin V.I., Аbramovich G.N., Klyachko L.А. Zakonomernost’ raskhoda zhidkosti v zakruchennom potoke (ehffekt maksimal’nogo raskhoda zakruchennogo potoka zhidkosti) [The pattern of flow rate in a swirling flow (the effect of the maximum flow rate of a swirling fluid flow)]. Opening No. 389 was entered in the State Register of Discoveries on October 18, 1990, at the request No. ОТ-11080 of February 27, 1985.

10. Mitrofanova O.V. Metody matematicheskogo modelirovaniya gidrodinamiki i teploobmena zakruchennykh potokov v kanalakh s zavikhritelyami Diss. doct. Fiz.-mat. Nauk [Methods of mathematical modeling of hydrodynamics and heat exchange of swirling flows in channels with swirlers. Dr. phys. and math. sci. diss.]. Moscow, 2002. 321 p. In Russ.

11. Mitrofanova O.V. Gidrodinamika i teploobmen zakruchennykh potokov v kanalakh yaderno-ehnergeticheskikh ustanovok [Hydrodynamics and heat exchange of the vortex fluid flow in the nuclear power plant circuits]. Moscow: FIZMАTLIT, 2010. 288 p. In Russ.