Kaplan turbines

E373525

axial-flow turbine hydraulic machine reaction turbine water turbine

Kaplan turbines are adjustable-blade water turbines commonly used in low-head hydroelectric power plants to efficiently generate electricity from large volumes of flowing water.

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All labels observed (2)

Label	Occurrences
Kaplan turbine	8
Kaplan turbines canonical	2

How this entity was disambiguated

This entity first appeared as the object of triple T3618940 — 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: Kaplan turbines
Context triple: [Bonneville Dam, hasTurbineType, Kaplan turbines]

A. Voith
Voith is a German multinational engineering company known for its technologies and services in sectors such as energy, paper, raw materials, and transportation.
B. Archimedean screw
The Archimedean screw is an ancient mechanical device, traditionally attributed to Archimedes, used to lift water or other granular materials by rotating a helical surface inside a cylinder or open trough.
C. Venturi
Venturi is an Italian surname most prominently associated with architect Robert Venturi, a key figure in postmodern architecture.
D. Industria de Turbo Propulsores
Industria de Turbo Propulsores is a Spanish aerospace company specializing in the design, manufacture, and maintenance of aircraft and industrial gas turbine engines.
E. Raptor vacuum engine
The Raptor vacuum engine is a high-efficiency, methane-fueled rocket engine developed by SpaceX for use in the vacuum of space, particularly on upper stages and deep-space missions.
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: Kaplan turbines
Target entity description: Kaplan turbines are adjustable-blade water turbines commonly used in low-head hydroelectric power plants to efficiently generate electricity from large volumes of flowing water.

A. Voith
Voith is a German multinational engineering company known for its technologies and services in sectors such as energy, paper, raw materials, and transportation.
B. Archimedean screw
The Archimedean screw is an ancient mechanical device, traditionally attributed to Archimedes, used to lift water or other granular materials by rotating a helical surface inside a cylinder or open trough.
C. Venturi
Venturi is an Italian surname most prominently associated with architect Robert Venturi, a key figure in postmodern architecture.
D. Industria de Turbo Propulsores
Industria de Turbo Propulsores is a Spanish aerospace company specializing in the design, manufacture, and maintenance of aircraft and industrial gas turbine engines.
E. Raptor vacuum engine
The Raptor vacuum engine is a high-efficiency, methane-fueled rocket engine developed by SpaceX for use in the vacuum of space, particularly on upper stages and deep-space missions.
F. None of above. chosen

Statements (50)

Predicate	Object
instanceOf	axial-flow turbine ⓘ hydraulic machine ⓘ reaction turbine ⓘ water turbine ⓘ
advantage	compact powerhouse layout ⓘ good part-load performance ⓘ suitable for variable river flows ⓘ
bladeType	adjustable-blade ⓘ
commonMaterial	stainless steel runner ⓘ steel casing ⓘ
comparedTo	Francis turbine ⓘ Pelton turbine ⓘ
comparisonResult	better suited to high flows and low heads than Pelton turbine ⓘ better suited to lower heads than Francis turbine ⓘ
controlFeature	adjustable guide vanes ⓘ adjustable runner blades ⓘ
controlMethod	double regulation ⓘ
designFeature	hub with pitch-changing mechanism ⓘ large-diameter runner for low head ⓘ
disadvantage	complex blade pitch mechanism ⓘ higher manufacturing cost than fixed-blade turbines ⓘ
efficiencyCharacteristic	high efficiency over wide load range ⓘ peak efficiency often above 90 percent ⓘ
energyConversion	hydraulic energy to mechanical energy ⓘ
flowControlComponent	draft tube ⓘ spiral casing ⓘ wicket gates ⓘ
flowDirection	axial flow ⓘ
inventedBy	Viktor Kaplan ⓘ
inventionDate	1913 ⓘ
namedAfter	Viktor Kaplan ⓘ
operatingPrinciple	pressure and velocity changes in flowing water ⓘ
powerRange	suitable for small to very large units ⓘ
regulationPurpose	control output power ⓘ maintain high efficiency at variable flow ⓘ
runnerBladeCount	typically 3 to 8 blades ⓘ
runnerMounting	horizontal shaft ⓘ vertical shaft ⓘ
runnerType	propeller-type runner ⓘ
suitableFlowCondition	large discharge ⓘ
suitableHeadRange	approximately 2 to 70 meters ⓘ low head ⓘ
typicalApplication	low-head hydroelectric power plant ⓘ run-of-river hydroelectric plant ⓘ tidal power plant ⓘ
typicalSpeedRange	low to medium rotational speed ⓘ
usedFor	electricity generation ⓘ
usedIn	hydroelectric power station ⓘ low-head river dams ⓘ navigation dams with powerhouses ⓘ

How these facts were elicited