Title: Dynamical safety assessment of hydrogen production nuclear power plants using system dynamics method

Authors: Taeho Woo; Soonho Lee

Addresses: Department of Nuclear Engineering, Seoul National University, Gwanak 599, Gwanakro, Gwanak-gu, Seoul 151-742, Korea ' SK Engineering and Construction Co., Ltd., 192-18, Gwanhoon-dong, Jongno-gu, Seoul 110-330, Korea

Abstract: Nuclear power plants for hydrogen production are investigated in the aspect of nuclear safety. The non-linear dynamical safety assessment is introduced for the analysis of the high temperature gas cooled reactor (HTGR) which is used for hydrogen production as well as electricity generation. The dynamical algorithm is adjusted for the safety assessment with an easier and reliable output. A feedback of power increase affects to the temperature decrease. The top event of the event is power and temperature stable. It is affected by the human factor, poison, and some other physical variables. There are several factors including the economic and safety factors which are considered for the reliability of the modelling simulations. Using the system dynamics (SD) method, the event quantification is performed for the event flows, stocks, and feedback by the single and double arrow lines.

Keywords: nuclear power plants; NPP; simulation; feedback; system dynamics; modelling; safety assessment; hydrogen production; nuclear safety; high temperature gas cooled reactors; HTGR; nuclear energy; nuclear power.

DOI: 10.1504/IJNHPA.2013.057319

International Journal of Nuclear Hydrogen Production and Applications, 2013 Vol.2 No.4, pp.247 - 257

Received: 25 Nov 2011
Accepted: 28 Jan 2012
Published online: 12 Jul 2014 *

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