TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Nuclear and radiation safety justification for a nuclear ship under external effects



Full text article ( in russian)

Year

 
2019

Issue

 
387

Volume

 
1

Pages

 
131-142

Caption

 
Nuclear and radiation safety justification for a nuclear ship under external effects

Authors

 
Kudinovich I.

Keywords

 
emergency, nuclear ship, external effects, nuclear and radiation safety, nuclear reactor

DOI

 
10.24937/2542-2324-2019-1-387-131-142

Summary

 
Object and purpose of research.This paper justifies nuclear and radiation safety of nuclear ships in the conditions of external effects and onboard fires.
Subject matter and methodsThis paper follows the method of system analysis
Main results.This paper suggests analysis methodology for emergencies aboard nuclear ships due to external effects and onboard fires. Based on this methodology and in compliance with applicable regulations, this paper justifies nuclear and radiation safety of Project 22220 multi-purpose icebreaker and Project 20870 floating NPP.
Conclusion.The analysis has shown that ship safety is ensured for all scenarios of non-design emergencies due to external effects. In terms of radiation-related outcomes, worst-case scenarios are non-design emergencies with protective nuclear reactor barriers failing due to ramming by other ship going well above critical speed (5-6 knots), or due to long stranding of icebreaker (floating NPP) on a rocky bank in stormy conditions. In these conditions, unacceptable radiation impact due to release of radioactive substances into the atmosphere or into water may spread by as far as 20–30 km.

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