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Penstock cross-section
Penstocks at the Grand Coulee Dam's third powerhouse
A 'penstock' is a sluice or gate or intake structure that controls water flow, or an enclosed pipe that delivers water to hydraulic turbines and sewerage systems. It is a term that has been inherited from the technology of wooden watermills.
| Contents |
| In hydro-electric systems and dams |
| In watermills |
| Similar structures |
| External links |
In hydro-electric systems and dams
Penstocks for hydroelectric installations are normally equipped with a gate system and a surge tank. Flow is regulated by turbine operation and is nil when turbines are not in service. Maintenance requirements may include hot water wash, manual cleaning, antifoulant coatings, and desiccation.
Penstocks are also used in mine tailings dam construction, the penstock is usually situated fairly close to the center of the tailings dam and built up using penstock rings, these penstock rings control the water level letting the slimes settle out of the water, this water is then piped back under the tailings dam back to the plant via a penstock pipeline.
In watermills
See: Watermill.
Similar structures
Similar structures which are not enclosed are ''head races'' or leats (non elevated), and flumes (elevated).
External links
★ Penstock cross-sections for the Grand Coulee Dam
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