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Comparison and Analysis of Residual Heat Removal Systems of Reactors in Station Blackout Accidents

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Atomic Energy Aims and scope

A comparative analysis is performed of emergency cool-down systems of water-cooled reactors, using passive heat-removal systems. The use of such a system reduces the likelihood of serious accidents with core damage at NPP but the capital investment and associated operating costs are higher. Auxiliary expenditures on maintaining this system in a standby mode are also required. A scheme combining active and passive cool-down systems is proposed owing to the rejection of air heat-exchangers-condensers of the passive heat-removal system and the installation of an auxiliary low-capacity steam turbogenerator is proposed. A comparative technical-economic analysis of the proposed combined cool-down system and an air passive heat-removal system is performed. The calculations show that at comparable safety levels such a system makes it possible to reduce capital and total operating expenses for NPP located in all climatic belts.

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Authors and Affiliations

  1. Saratov Scientific Center, Russian Academy of Sciences, Saratov, Russia

    R. Z. Aminov & A. N. Egorov

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  1. R. Z. Aminov
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  2. A. N. Egorov
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Translated from Atomnaya Energiya, Vol. 121, No. 6, pp. 316–322, December, 2016.

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Aminov, R.Z., Egorov, A.N. Comparison and Analysis of Residual Heat Removal Systems of Reactors in Station Blackout Accidents. At Energy 121, 402–408 (2017). https://doi.org/10.1007/s10512-017-0219-y

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  • DOI: https://doi.org/10.1007/s10512-017-0219-y

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