Record Details

page 24

Oregon Digital

Field Value
Title page 24
Relation Pumped-Storage in the Pacific Northwest
Date 2005-05-10 to 2005-05-25
Rights This item is in the public domain. Acknowledgement of the University of Oregon Libraries as a source is requested.
Type page
Format Scanned from originals using Silverfast AI 6.0 on UMAX Powerlook III flatbed scanner. Scanned images saved as 16 bit grayscale tiffs. 209.958 kb 8 bit - Gray Gamma 2.2 - greyscale Omnipage 14 used to OCR 8 bit tiffs and generate text files for full text access. 16 bit grayscale and 48>24 RGB color tiffs edited in Photoshop CS 8.0: cropped, rotated, reduced in size, levels adjusted, grayscale bit depth reduced to 8 and JPEGs created.
Description Head. To minimize costs, sites were sought which had fairly high heads. At higher heads, less water is required per unit of generation, and as a result it is possible to reduce the costs of the pump-turbine/motorgenerator equipment, the diameter of the penstocks, and the size of the reservoirs. The heads available at most of the sites permit the use of reversible Francis pump-turbines. Although present technology limits the design of reversible units being built today to heads of about 1,600...
Identifier http://oregondigital.org/u?/wwdl,2139

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