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Penstock

Penstock news and technical articles from Hydro World Magazine. Search Penstock latest and archived news and articles

  1. Rehabilitation of Penstocks and Structures vs. Replacement

    Webcasts

    Tue, 2 Dec 2014

    structural integrity of the penstock (s) is of key concern as ..... structural integrity of an existing penstock , engineering and design considerations ..... for the rehabilitation of a penstock and the rehabilitation of penstocks using traditoinal and new

  2. Refurbishing Surge Tanks and Penstocks

    Magazine Articles

    Sat, 1 Sep 2007

    that contains the penstock . The concrete ..... high cliff. The penstocks at nine of the ..... dewatered the penstocks . With the penstock emptied, the contractor ..... Before beginning penstock inspections ..... Workers inspected penstocks using a custom

  1. STICKY WICKETS: Custom-Made Trolley Simplifies Penstock Inspections

    Magazine Articles

    Tue, 1 Apr 2008

    inspections The penstocks at Nova Scotia ..... carried out a penstock refurbishment ..... inspections of the penstock interiors ..... of corroded penstocks ; and application ..... interiors of all penstocks on foot. However, the penstock that supplies

  2. U.S. seeks firms to blast, repair penstocks at 96-MW Greers Ferry

    Online Articles

    Tue, 1 Nov 2011

    repair, and paint two penstocks at the 96-MW Greers ..... capable of performing the penstock work. Responses are to ..... surfaces of two main-unit penstock assemblies, scroll cases, and wicket gates. Both penstocks are about 190 feet long

  3. U.S. seeks penstock repainting at 96-MW Greers Ferry

    Online Articles

    Mon, 6 Feb 2012

    blast clean, repair, and paint two penstocks and related equipment of the 96-MW ..... interior steel surfaces of two main-unit penstock assemblies, scroll cases, and wicket gates. Both penstocks are about 190 feet long, with diameters

  4. French utility seeks power tunnel, penstock rehab at 34-MW Sabart hydro project

    Online Articles

    Thu, 4 Sep 2014

    the power tunnel and replace penstock sections and the discharge ..... bids in 2011 to refurbish penstocks of a nearby plant in the group ..... Aston . It also took bids for penstock refurbishment at the 126 ..... the power tunnel and replace penstock sections, the discharge conduit

  5. Replacing a woodstave penstock with a smaller-diameter pipe increases water flow

    Magazine Articles

    Tue, 20 May 2014

    The 40-plus-year-old penstock supplying water to the 29 ..... storage plant. The original penstock , which operated from 1928 ..... ground installations such as penstocks . It is a structural filament ..... took 11 days to remove the penstock . "We cut the existing penstock

  6. Norway utility seeks turbine, penstock for new 5-MW Haukland

    Online Articles

    Wed, 12 Oct 2011

    seeks bids to supply a turbine and a penstock for a new 5-MW Haukland hydroelectric ..... to supply a new 1,110-meter penstock for the new power station, replacing ..... existing power station having two penstocks on the same route. Those tender

  7. BC Hydro seeks penstock leak detection at 180-MW Bridge River 1

    Online Articles

    Thu, 16 May 2013

    BC Hydro seeks bids for penstock leak detection at the 180 ..... and installation of a penstock leak detection system on the Unit 2 penstock at Bridge River 1. A pre ..... require similar systems for penstocks of Units 1, 3, and 4 of

  8. Penstock bids extended for 126-MW Passy, dropped for 101-MW Aston

    Online Articles

    Thu, 20 Jan 2011

    for bids to refurbish the penstock of the 126-MW Passy hydroelectric ..... project and canceled bidding for penstock work at the 101-MW Aston ..... January 28 for refurbishment of penstocks of both projects. In 2009 ..... bids for refurbishment of the penstock of the 97-MW Nentilla hydroelectric