Record Details
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 |