We are now putting down pedestals where the penstock pipes will be laid leading to the power house. |
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At this point, the water is allowed to fall through a pipe or penstock down to the powerhouse where it spins turbines to create electricity. |
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For example, small roads, buried penstock, and strict creek level control will minimize environmental degradation. |
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The generation of electricity depends upon the volume of water flowing through the penstock and the height from which the water falls. |
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The choice of size and type of penstock depends on several factors that are explained briefly in this section. |
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Potential power will also be lost in the penstock pipe that carries the water to the turbine because of frictional losses. |
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Several options for sizes and types of materials may need to be calculated and evaluated in order to find a suitable penstock pipe. |
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The gravel trap and screen are constructed close to the intake in order to prevent debris, gravel and sand from getting into the penstock. |
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The Kokish Project would have one main intake to divert the flow of water into the penstock, which would be divided into two segments. |
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Water from the dam at Lois Lake is conveyed to the generating equipment by a 2,886 m long steel and concrete penstock. |
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Sometimes, in more mountainous regions, the project can dispense with the canal and simply send water down the penstock directly from the intake. |
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This year saw the end of the Hauterive power house rehabilitation and of the Fully penstock refection. |
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Because of changes in the ambient temperature, the length of the penstock pipe may be subjected to expansion and contraction. |
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Now with a penstock in the ground and the turbine sheltered, electricity can be generated all year. |
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Head loss due to friction in the penstock pipe depends principally on the velocity of the water, the roughness of the pipe wall and the length and diameter of the pipe. |
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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. |
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On 12 December 2000, the penstock of the Cleuson-Dixence scheme which brings the water from the Grande Dixence dam to the Bieudron power plant burst. |
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Gross head is the vertical distance between the top of the penstock that conveys the water under pressure and the point where the water discharges from the turbine. |
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To calculate the most realistic power output from your site, you must take into account the friction losses in the penstock pipes and the efficiency of the turbine and generator. |
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They are driven through a penstock, an inclined steellined shaft that brings the water from 1900 metres altitude to the Trift tunnel at 2400 metres altitude or the level of the main water conduit. |
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As it exits the penstock, the force of the water rotates a turbine. |
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Sometimes the final approach of the water to the wheel is along a flume or penstock, which can be lengthy. |
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Smaller systems are available as integrated units, and the manufacturer and supplier can provide information to select an optimum sized penstock pipe, turbine and generator. |
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Part of this inspection includes the operational test of the penstock valves, which are operated as a flood prevention measure. |
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The proposed generating station includes a dam with a water intake and penstock, powerhouse and tailrace channel. |
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This the only experimental plant in the world, which uses a complex compensator of steel penstock. |
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The team has excavated 26,000 cubic metres of earth to create a floodwater storage cell with a penstock system fitted to regulate water levels. |
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