A simplified Probabilistic Safety Assesment of a Steam-Methane Reforming Hydrogen Production Plant coupled to a High-Temperature Gas Cooled Nuclear Reactor

Nelson Edelstein, Pamela and Flores Flores, Alain and Francois Lacouture, Juan Luis (2005). A simplified Probabilistic Safety Assesment of a Steam-Methane Reforming Hydrogen Production Plant coupled to a High-Temperature Gas Cooled Nuclear Reactor. In: "Probabilistic Safety Analysis (PSA '05) International Topical Meeting", 01/09/2005 - 08/09/2008, San Francisco, USA. pp. 1-8.

Description

Title: A simplified Probabilistic Safety Assesment of a Steam-Methane Reforming Hydrogen Production Plant coupled to a High-Temperature Gas Cooled Nuclear Reactor
Author/s:
  • Nelson Edelstein, Pamela
  • Flores Flores, Alain
  • Francois Lacouture, Juan Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: Probabilistic Safety Analysis (PSA '05) International Topical Meeting
Event Dates: 01/09/2005 - 08/09/2008
Event Location: San Francisco, USA
Title of Book: Proceedings of Probabilistic Safety Analysis (PSA '05) International Topical Meeting
Date: 2005
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Nuclear [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A Probabilistic Safety Assessment (PSA) is being developed for a steam-methane reforming hydrogen production plant linked to a High-Temperature Gas Cooled Nuclear Reactor (HTGR). This work is based on the Japan Atomic Energy Research Institute’s (JAERI) High Temperature Test Reactor (HTTR) prototype in Japan. This study has two major objectives: calculate the risk to onsite and offsite individuals, and calculate the frequency of different types of damage to the complex. A simplified HAZOP study was performed to identify initiating events, based on existing studies. The initiating events presented here are methane pipe break, helium pipe break, and PPWC heat exchanger pipe break. Generic data was used for the fault tree analysis and the initiating event frequency. Saphire was used for the PSA analysis. The results show that the average frequency of an accident at this complex is 2.5E-06, which is divided into the various end states. The dominant sequences result in graphite oxidation which does not pose a health risk to the population. The dominant sequences that could affect the population are those that result in a methane explosion and occur 6.6E-8/year, while the other sequences are much less frequent. The health risk presents itself if there are people in the vicinity who could be affected by the explosion. This analysis also demonstrates that an accident in one of the plants has little effect on the other. This is true given the design base distance between the plants, the fact that the reactor is underground, as well as other safety characteristics of the HTGR. Sensitivity studies are being performed in order to determine where additional and improved data is needed.

More information

Item ID: 13746
DC Identifier: http://oa.upm.es/13746/
OAI Identifier: oai:oa.upm.es:13746
Deposited by: Memoria Investigacion
Deposited on: 15 Nov 2012 12:34
Last Modified: 21 Apr 2016 13:06
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