Sentence examples for penstock from inspiring English sources
noun
A sluice or pipe which allows the controlled flow of water from behind a dam, typically routing it to a turbine of a power plant.
A unit 700 metres deep, with a main shaft 26 metres across and a return shaft (or penstock) of about a tenth of that, would cost $170m.
In contrast, a progressive rockfall on the 14-mile Kemano penstock tunnel in Canada resulted in shutting down the whole town of Kitimat in British Columbia, and vacationing workers for nine months in 1961 since there were no other electric sources to operate the smelter.
In the 1960s there was a trend toward an advancing-slope method of continuous concreting, as originally devised for embedding the steel cylinder of a hydropower penstock.
Most common is the case of a water tunnel that is built oversized to offset the friction increase from the rough sides and, if a penstock tunnel, is equipped with a rock trap to catch loose rock pieces before they can enter the turbines.
This could lead to a destructive pressure surge (water hammer) in the supply pipeline, or penstock.
For Rangkhani's microhydro plant, part of the flow of the Kalung Khola was diverted via a series of concrete and stone channels built over the lush, hilly terrain, then funneled down to the powerhouse through a pipe called a penstock.
Four reinforced-concrete intake towers located above the dam divert water from the reservoir into huge steel pipes called penstocks.
In the generation of hydroelectric power, water is collected or stored at a higher elevation and led downward through large pipes or tunnels (penstocks) to a lower elevation; the difference in these two elevations is known as the head.
The structure that houses the turbines and generators, and into which the pipes or penstocks feed, is called the powerhouse.
These must take into account the large masses and inertias of the metal and the flowing water, including the water in the inflow pipes (or penstocks), that will be affected by any change in the wicket gate setting.
The 5-mile, 14-foot El Colegio Penstock Tunnel in Colombia was completed in 1965 in bituminous shale, requiring the replacement and resetting of more than 2,000 rib sets, which buckled as the invert (bottom supports) and sides gradually squeezed in up to 3 feet, and by deferring concreting until the ground arch stabilized.
