GE Mark I
E790332
GE Mark I is an early-generation General Electric boiling water reactor containment design that became widely known due to its use in the Fukushima Daiichi nuclear power plant.
All labels observed (2)
| Label | Occurrences |
|---|---|
| GE BWR containment Mark series | 1 |
| GE Mark I canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9296205 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GE Mark I Context triple: [Fukushima Daiichi Nuclear Power Plant, reactorModel, GE Mark I]
-
A.
Westinghouse 3-loop PWR
The Westinghouse 3-loop PWR is a pressurized water reactor design featuring three primary coolant loops, widely used in commercial nuclear power plants for reliable electricity generation.
-
B.
K15 pressurized water reactor
The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
-
C.
K-West Reactor
K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
-
D.
PM-3A nuclear reactor
The PM-3A nuclear reactor was a small U.S. Navy-built nuclear power plant that supplied electricity and heat to McMurdo Station in Antarctica during the 1960s and early 1970s.
-
E.
Enrico Fermi Nuclear Generating Station
The Enrico Fermi Nuclear Generating Station is a nuclear power plant complex located on the shore of Lake Erie in Michigan, known for housing multiple reactor units including the Fermi 2 boiling water reactor.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: GE Mark I Target entity description: GE Mark I is an early-generation General Electric boiling water reactor containment design that became widely known due to its use in the Fukushima Daiichi nuclear power plant.
-
A.
Westinghouse 3-loop PWR
The Westinghouse 3-loop PWR is a pressurized water reactor design featuring three primary coolant loops, widely used in commercial nuclear power plants for reliable electricity generation.
-
B.
K15 pressurized water reactor
The K15 pressurized water reactor is a French naval nuclear reactor design used to power modern French aircraft carriers and submarines.
-
C.
K-West Reactor
K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
-
D.
PM-3A nuclear reactor
The PM-3A nuclear reactor was a small U.S. Navy-built nuclear power plant that supplied electricity and heat to McMurdo Station in Antarctica during the 1960s and early 1970s.
-
E.
Enrico Fermi Nuclear Generating Station
The Enrico Fermi Nuclear Generating Station is a nuclear power plant complex located on the shore of Lake Erie in Michigan, known for housing multiple reactor units including the Fermi 2 boiling water reactor.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
boiling water reactor containment design
ⓘ
nuclear reactor containment system ⓘ |
| associatedStandard | U.S. Nuclear Regulatory Commission licensing requirements ⓘ |
| comparedTo |
later BWR containment designs such as Mark II
ⓘ
later BWR containment designs such as Mark III ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| criticizedBy | some nuclear safety experts ⓘ |
| designer | General Electric ⓘ |
| designFeature |
compact containment volume
ⓘ
lightweight containment structure ⓘ pressure suppression containment ⓘ use of water pool for pressure suppression ⓘ |
| developedBy |
General Electric Nuclear Energy
ⓘ
linked to:
GE Hitachi Nuclear Energy
|
| developmentPeriod | 1960s ⓘ |
| generation | early-generation ⓘ |
| hasComponent |
drywell
ⓘ
primary containment ⓘ secondary containment structures ⓘ suppression chamber ⓘ torus-shaped suppression pool ⓘ |
| hasShape | torus-shaped suppression pool configuration ⓘ |
| historicalSignificance | one of the earliest standardized BWR containment designs ⓘ |
| industryUse | commercial nuclear power generation ⓘ |
| influenceOn | subsequent BWR containment design evolution ⓘ |
| notableEventAssociation | 2011 Fukushima Daiichi nuclear disaster ⓘ |
| primaryFunction |
containment of radioactive materials during reactor accidents
ⓘ
pressure suppression during loss-of-coolant accidents ⓘ |
| publicPerception | increased scrutiny after Fukushima Daiichi accident ⓘ |
| reactorType | boiling water reactor ⓘ |
| regulatoryConcerns |
hydrogen management issues
ⓘ
risk of containment failure in severe accidents ⓘ vulnerability to overpressure ⓘ |
| safetyEnhancementMeasures |
backfit requirements in some countries
ⓘ
hardened vent systems retrofits ⓘ |
| safetyIssue |
limited containment volume compared to later designs
ⓘ
potential for early containment failure in core melt accidents ⓘ |
| usedIn |
Fukushima Daiichi Nuclear Power Plant
ⓘ
Fukushima Daiichi Unit 1 ⓘ Fukushima Daiichi Unit 2 ⓘ Fukushima Daiichi Unit 3 ⓘ Fukushima Daiichi Unit 4 ⓘ various nuclear power plants worldwide ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: GE Mark I Description of subject: GE Mark I is an early-generation General Electric boiling water reactor containment design that became widely known due to its use in the Fukushima Daiichi nuclear power plant.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: GE Mark I