Skip to main content
SpringerLink
Log in

Change in the Temperature Coefficient of Reactivity in Light-Water Reactors During Fuel Burnup

  • Articles
  • Published:
Atomic Energy Aims and scope

The results of computational studies of the effect of different approximations on the estimation of the temperature coefficient of reactivity are presented. The Doppler effect is evaluated for fuel elements and groups of fuel elements in a light-water reactor (VVER, PWR) fuel assembly using a modified option of theUNC program intended for calculating two-dimensional regions with complex geometry by the first-collision probabilities (FCP) method. It is shown that taking account of the spatial nonuniformity of the resonance absorption and temperature distribution along the radius of a pellet gives a correction to the temperature coefficient of reactivity (toward lower values) by approximately 10 % in PWR compared with a calculation by a conventional method, which, as a rule, neglects the factors enumerated. This is characteristic for one fuel element or a group of fuel elements.

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. N. I. Belousov, V. D. Davidenko, and V. F. Tsibul’skii, UNK Software for Detailed Calculation of the Neutron Spectrum of a Reactor, Preprint IAE-6083/4 (1998).

  2. V. D. Davidenko and V. F. Tsibulsky, “Detailed calculation of neutron spectrum in cell of a nuclear reactor,” Int. Conf. Physics of Nuclear Science and Technology, Long Island, New York, Oct. 5–8, 1998, pp. 1755–1760.

  3. V. D. Davidenko and V. F. Tsibul’skii, “Burnup calculation in the UNK software,” Neutronics-1999 (2000), pp. 53–55.

  4. NEA/NSC/DOC20, Pressurized Water Reactor MOX/UO2 Core Transient Benchmark: Final Report, (2006).

  5. IAEA-TECDOC-815, In-Core Fuel Management Code Package Validation for PWRs (1995).

Download references

Author information

Authors and Affiliations

  1. Dollezhal Research and Development Institute of Power Engineering (NIKIET), Moscow, Russia

    A. D. Klimov

  2. National Research Center Kurchatov Institute, Moscow, Russia

    V. D. Davidenko, V. F. Tsibul’skii & S. V. Tsibul’skii

Authors
  1. A. D. Klimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. D. Davidenko
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. F. Tsibul’skii
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S. V. Tsibul’skii
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Atomnaya Énergiya, Vol. 116, No. 1, pp. 3–5, January, 2014.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Klimov, A.D., Davidenko, V.D., Tsibul’skii, V.F. et al. Change in the Temperature Coefficient of Reactivity in Light-Water Reactors During Fuel Burnup. At Energy 116, 1–5 (2014). https://doi.org/10.1007/s10512-014-9808-1

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10512-014-9808-1

Keywords

Search

Navigation