Instrumentation and control system design

Saito, Kenji; Sawahata, Hiroaki; Homma, Fumitaka; Kondō, Makoto; Mizushima, Toshihiko

doi:10.1016/j.nucengdes.2004.08.031

Cited by 5 publications

(4 citation statements)

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“…It is considered that the events in 1997 and 1998 were initial failures or occurred due to adjusting systems and components. In terms of individual systems, the instrumentation and control system [4] and the auxiliary reactor system [5] had many events. Figure 1 shows that, from 1999 to 2001, the number of events gradually decreased.…”

Section: Trends In Registered Eventsmentioning

confidence: 99%

Operation and maintenance experience from the HTTR database

Shimizu

Furusawa

Homma

et al. 2014

Journal of Nuclear Science and Technology

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The Japan Atomic Energy Agency has been establishing a database of operation and maintenance experience for the High Temperature Engineering Test Reactor. The objective of this database is to share information from operation and maintenance experience and make use of the knowledge gained in the design, construction, and operation of future High Temperature Gas-cooled Reactors (HTGRs). Between 1997 and 2012, more than 1000 events have been registered in this database system. This paper describes trends in operation and maintenance events recorded in this database, including experience gained from the Great East Japan Earthquake. The paper also identifies the following significant items that are expected to be useful in the design of future HTGRs: (1) performance degradation of helium gas compressors, (2) malfunction of the reserved shutdown system in the reactivity control system, (3) problems with emergency gas turbine generators, and (4) consequences of the Great East Japan Earthquake.

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