Dust Generation and Transport Behavior in the Primary Circuit of HTTR

Hamamoto, Shoichiro; Shimazaki, Yasuhisa; Furusawa, Takayuki; Nemoto, Takahiro; Inoi, Hiroyuki

doi:10.1115/icone20-power2012-54493

Cited by 1 publication

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“…Further, carbon dust of the piston rings has been circulated in the primary cooling system. This carbon dust increased differential pressures in the filters of primary helium gas circulators [6]. Due to the increase in differential pressures in filters, the filters on primary helium gas circulators had to be replaced twice [7].…”

Section: Abnormal Abrasion Of Piston Ringsmentioning

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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Section: Abnormal Abrasion Of Piston Ringsmentioning

confidence: 99%