Francis turbine
E442395
A Francis turbine is a widely used reaction water turbine designed for medium-head hydroelectric power generation, known for its high efficiency and suitability for large dams.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
hydraulic machine
ⓘ
reaction turbine ⓘ water turbine ⓘ |
| application |
base-load power generation
ⓘ
grid-connected hydroelectric plants ⓘ |
| category |
mixed-flow water turbine
ⓘ
reaction water turbine ⓘ |
| commonInstallation | underground powerhouse caverns ⓘ |
| comparedTo |
Kaplan turbine
NERFINISHED
ⓘ
Pelton turbine NERFINISHED ⓘ |
| controlMethod | adjustable guide vanes ⓘ |
| designGoal | maximize efficiency over a range of heads and flows ⓘ |
| developedBy | James B. Francis NERFINISHED ⓘ |
| developmentPeriod | mid-19th century ⓘ |
| distinguishedFrom |
Kaplan turbine by using mixed-flow rather than axial-flow
ⓘ
Pelton turbine by operating at lower heads and higher flow ⓘ |
| drives | electric generator ⓘ |
| energyConversion | converts hydraulic energy to mechanical energy ⓘ |
| flowDirection |
axial at outlet
ⓘ
radial-inward at inlet ⓘ |
| fluid | water ⓘ |
| governing | speed regulation via wicket gate adjustment ⓘ |
| hasComponent |
draft tube
ⓘ
guide vanes ⓘ runner ⓘ spiral casing ⓘ stay vanes ⓘ |
| mounting | usually installed in a spiral or scroll casing ⓘ |
| namedAfter | James B. Francis NERFINISHED ⓘ |
| operatingPrinciple |
mixed-flow
ⓘ
reaction ⓘ |
| positionRelativeToTailrace | runner located above tailrace level with draft tube ⓘ |
| runnerType | mixed-flow runner ⓘ |
| suitableFor |
large flow rates
ⓘ
medium heads ⓘ |
| typicalEfficiency |
high efficiency
ⓘ
often above 90 percent ⓘ |
| typicalHeadRange |
approximately 10 to 300 meters
ⓘ
medium head ⓘ |
| usedFor |
hydroelectric power generation
ⓘ
large dam power stations ⓘ medium-head hydroelectric applications ⓘ |
| usedInCountry |
Brazil
ⓘ
Canada ⓘ China NERFINISHED ⓘ India NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.