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Home Archive of journals Volume 11, No. 2, 2021 Improving the economic performance of nuclear icebreakers when navigating ships in the Arctic

IMPROVING THE ECONOMIC PERFORMANCE OF NUCLEAR ICEBREAKERS WHEN NAVIGATING SHIPS IN THE ARCTIC

JOURNAL: Volume 11, No. 2, 2021, p. 244-253

HEADING: Shipbuilding for the Arctic

AUTHORS: Korolev, V.I.

ORGANIZATIONS: Admiral Makarov State University of Maritime and Inland Shipping

DOI: 10.25283/2223-4594-2021-2-244-253

UDC: 629.12:621.039

The article was received on: 30.11.2020

Keywords: power limitation (PL), electric propulsion installation (EPI), maneuvering, mode setter, reactor power, navigation safety, main steam line, main steam line, steam etching, maneuver beyond the power limit, navigation regulations, empirical mathematical expectation, empirical variance, nuclear fuel, nuclear fuel utilization factor

Bibliographic description: Korolev, V.I. Improving the economic performance of nuclear icebreakers when navigating ships in the Arctic. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2021, vol. 11, no. 2, pp. 244-253. DOI: 10.25283/2223-4594-2021-2-244-253. (In Russian).


Abstract:

The most expensive part of nuclear icebreakers to be replaced is the reactor core, and therefore great importance was attached to increasing its energy storage and energy resource. At the first stage of the active zone development, it was possible to solve the problem of equalizing the calculated energy storage and the assigned energy resource. Another problem related to the icebreaker maneuvering in the Arctic is the unreasonably overestimated power limitation of the electric propulsion installation set by the navigator, leading to a decrease in the duration of the core campaign and its premature unloading from the reactor. The article proposes solutions that allow increasing the duration of the active zone campaign in the conditions of icebreaker maneuvering in the Arctic.

The author suggests achieving this by creating a standard base of fixed navigation regulations with known statistical power distributions on the propellers and by switching to the sliding steam pressure technology in the main steam line during maneuvering. This allows the navigator to increase quickly the power on the propellers directly from the wheelhouse without the reactor operator consent.

The article considers a numerical example using various options for power limitation of an electric propulsion installation. The calculation shows that due to the proposed option for setting the power limitation, it is possible, other things being equal, to save a third of the core energy reserve.


References:

1. Kashka M. M., Smirnov A. A., Golovinskiy S. A., Vorob’yov V. M., Ryzhkov A. V., Babich E. M. Prospects for the development of the nuclear icebreaker fleet. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2016, no. 3 (23), pp. 98—107. (In Russian).

2. Kashka M. M., Mantula N. V., Ponomarenko A. V. Experience and prospects of operation in the Arctic of the nuclear icebreaker fleet of Russia. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2012, no. 3 (7). . 84—91. (In Russian).

3. Korolev V. I., Lisina A. S. The use of sliding steam pressure in the main steam pipeline of an atomic icebreaker to reduce the burnout of nuclear fuel. Morskoe obrazovanie: traditsii, realii i perspektivy: materialy nauchno-prakticheskoi konferentsii, 31 March 2015. St. Petersburg, Izd-vo GUMRF im. admirala S. O. Makarova, 2015, vl. 2, . 103—109. (In Russian).

4. Korolev V. I. Fundamentals of the operation and repair of reactor facilities of floating facilities with a nuclear power plant: In 2 parts. Pt. 2. St. Petersburg. Izd-vo GUMRF im. admirala S. O. Makarova, 2019, 312 p. (In Russian).

5. Borovkov V. M., Korolev V. I., Golubev C. E. Investigation of the possibility of using the power control program by the sliding steam pressure method to improve the technical and economic indicators and improve the maneuverability of a VVER-1000 power unit. Report. Leningradskiy politehnicheskiy institute, 1984, no. 81008621, inv. no. 0286. 0022744 Leningrad. (In Russian).

6. Ivanov V. A., Ignatenko E. I., Borovkov V. M. Experimental study of the operation of a VVER-440 power unit at the end of a working campaign at a sliding initial steam pressure. Energomashinostroenie. [Power engineering], 1978, no. 4, pp. 23—25. (In Russian).

7. Korolev V. I., Kostylev I. I., Lastovtsev A. Yu. Features of the formation and thermal calculation of the vapor condensate cycle of ships and floating power units with a nuclear power plant. St. Petersburg, Bell, 2006, 208 p. (In Russian).

8. Korolev V. I. Development of comparative indicators of the operation of nuclear icebreakers in terms of the cost of nuclear fuel for maneuvering. Sbornik nauchnykh trudov professorsko-prepodavatel’skogo sostava GUMRF imeni adm. S. O. Makarova [Collection of scientific works of the faculty of GUMRF named after Adm. S. O. Makarov]. St. Petersburg, Izd-vo GUMRF im. adm. S. O. Makarova, 2015, pp. 160—168. (In Russian).

9. Korolev V. I., Lastovtsev A. Yu. Maneuverability and efficiency of nuclear power plants of nuclear icebreakers. Materialy nauchno-prakticheskoi konferentsii, posvyashchennoi 150-letiyu so dnya rozhdeniya akademika A. N. Krylova. St. Petersburg, SPBGMTU, 2013, pp. 150—153. (In Russian).

10. Korolev V. I. Fundamentals of control of ship reactors when operating at power. St. Petersburg, Med. pressa, 2003, 106 p. (In Russian).


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DOI 10.25283/2223-4594