FR2210801A1 - Nuclear reactor core passive protection system - esp for fast neutron reactor based on fall under gravity of fuel melted by local overheating - Google Patents

Nuclear reactor core passive protection system - esp for fast neutron reactor based on fall under gravity of fuel melted by local overheating

Info

Publication number
FR2210801A1
FR2210801A1 FR7245541A FR7245541A FR2210801A1 FR 2210801 A1 FR2210801 A1 FR 2210801A1 FR 7245541 A FR7245541 A FR 7245541A FR 7245541 A FR7245541 A FR 7245541A FR 2210801 A1 FR2210801 A1 FR 2210801A1
Authority
FR
France
Prior art keywords
fuel
local overheating
esp
protection system
refractory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7245541A
Other languages
French (fr)
Other versions
FR2210801B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electricite de France SA
Original Assignee
Electricite de France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electricite de France SA filed Critical Electricite de France SA
Priority to FR7245541A priority Critical patent/FR2210801A1/en
Priority to GB5519473A priority patent/GB1446086A/en
Priority to US05/420,363 priority patent/US3932217A/en
Priority to BE138465A priority patent/BE808168A/en
Priority to IT70617/73A priority patent/IT999934B/en
Priority to JP48141434A priority patent/JPS582398B2/en
Priority to DE19732363571 priority patent/DE2363571C3/en
Publication of FR2210801A1 publication Critical patent/FR2210801A1/en
Application granted granted Critical
Publication of FR2210801B1 publication Critical patent/FR2210801B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

At the bottom of each of a number of separate safety rods which are substituted in the core for normal fuel rods, is a crucible section of refractory material above which is an expansion chamber for fission product gasses with at its top a ring diaphragm supporting a plug, with small central bore, of refractory material. This in turn suports a refractory hollow cylinder with relatively large bore on which in turn are stacked hollow cylindrical pellets of fuel material lining the sheath of the element. Fuel melted by local overheating due to excess neutron flux flows down into the refractory sections reducing reactivity thereby in the overheated mid-section.
FR7245541A 1972-12-20 1972-12-20 Nuclear reactor core passive protection system - esp for fast neutron reactor based on fall under gravity of fuel melted by local overheating Granted FR2210801A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7245541A FR2210801A1 (en) 1972-12-20 1972-12-20 Nuclear reactor core passive protection system - esp for fast neutron reactor based on fall under gravity of fuel melted by local overheating
GB5519473A GB1446086A (en) 1972-12-20 1973-11-28 Method for the passive protection of a nuclear reactor
US05/420,363 US3932217A (en) 1972-12-20 1973-11-30 Method and device for the passive protection of a nuclear reactor
BE138465A BE808168A (en) 1972-12-20 1973-12-04 METHOD AND DEVICE FOR PASSIVE PROTECTION OF A NUCLEAR REACTOR
IT70617/73A IT999934B (en) 1972-12-20 1973-12-07 PROCEDURE AND PASSIVE PROTECTION DEVICE OF A NU CLEARE REACTOR
JP48141434A JPS582398B2 (en) 1972-12-20 1973-12-19 Passive protection devices for nuclear reactors
DE19732363571 DE2363571C3 (en) 1972-12-20 1973-12-20 Device for passive protection of a nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7245541A FR2210801A1 (en) 1972-12-20 1972-12-20 Nuclear reactor core passive protection system - esp for fast neutron reactor based on fall under gravity of fuel melted by local overheating

Publications (2)

Publication Number Publication Date
FR2210801A1 true FR2210801A1 (en) 1974-07-12
FR2210801B1 FR2210801B1 (en) 1978-03-03

Family

ID=9109062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7245541A Granted FR2210801A1 (en) 1972-12-20 1972-12-20 Nuclear reactor core passive protection system - esp for fast neutron reactor based on fall under gravity of fuel melted by local overheating

Country Status (2)

Country Link
BE (1) BE808168A (en)
FR (1) FR2210801A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011045390A1 (en) * 2009-10-16 2011-04-21 Commissariat à l'énergie atomique et aux énergies alternatives Nuclear fuel assembly and nuclear reactor comprising such assemblies

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011045390A1 (en) * 2009-10-16 2011-04-21 Commissariat à l'énergie atomique et aux énergies alternatives Nuclear fuel assembly and nuclear reactor comprising such assemblies
FR2951578A1 (en) * 2009-10-16 2011-04-22 Commissariat Energie Atomique ASSEMBLY OF NUCLEAR FUEL AND NUCLEAR REACTOR COMPRISING AT LEAST ONE SUCH ASSEMBLY
CN102576571A (en) * 2009-10-16 2012-07-11 法国原子能及替代能源委员会 Nuclear fuel assembly and nuclear reactor comprising such assemblies

Also Published As

Publication number Publication date
BE808168A (en) 1974-03-29
FR2210801B1 (en) 1978-03-03

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Legal Events

Date Code Title Description
ST Notification of lapse