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TECHNICAL PAPERS

Development of a High-Temperature, Long-Shafted, Molten-Salt Pump for Power Tower Applications

[+] Author and Article Information
Daniel L. Barth

Nagle Pumps, Inc., 1249 Center Avenue, Chicago Heights, IL 60411e-mail: dbarth@naglepumps.com

James E. Pacheco, William J. Kolb, Earl E. Rush

Sandia National Laboratories, PO Box 5800, Albuquerque, NM 87185-0703

J. Sol. Energy Eng 124(2), 170-175 (Apr 24, 2002) (6 pages) doi:10.1115/1.1464126 History: Received November 01, 2000; Revised November 01, 2001; Online April 24, 2002
Copyright © 2002 by ASME
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References

Pacheco, J. E., and Gilbert, R., 1999, “Overview of the Recent Results of the Solar Two Test and Evaluations Program,” Proce. of ASME Int. Solar Energy Conf. Renewable and Advanced Energy Systems for the 21st Century, Maui, HI.
Smith, D. C., Rush, E. E., Matthews, C. W., Chavez, J. M., and Bator, P. A., 1992, Report on the Test of the Molten-Salt Pump and Valve Loops, Sandia National Laboratories Report, SAND91-1747.
De Laquil III, P., Kelly, B. D., and Lessley, R. L., 1992, Solar Central Receiver Technology Advancement for Electric Utility Applications, Phase IIC Topical Report, Pacific Gas & Electric, Report 007.25-92-2.
Bradshaw, R. W., and Carling, R. W., 1987, A Review of Chemical and Physical Properties of Molten Alkali Nitrate Salts and Their Effect on Materials Used for Solar Central Receivers, Sandia National Laboratories Report, SAND87-8005.
Goods, S. H., Bradshaw, R. W., Prairie, M. R., and Chavez, J. M., 1994, Corrosion of Stainless and Carbon Steels in Molten Mixtures of Industrial Nitrates, Sandia National Laboratories Report, SAND94-8211.
Goods, S. H., Bradshaw, R. W., Clift, M. J., and Boehme, D. R., 1997, The Effects of Silicon on the Corrosion Characteristics of 2 14 Cr-1Mo Steel in Molten Nitrate Salt, Sandia National Laboratories Report, SAND97-8269.

Figures

Grahic Jump Location
Photograph of the Solar Two molten-salt power tower
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Photograph of the molten-salt power sumps used at Solar two
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Drawing of salt lubricated pump
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Nagle YWSR salt pump with salt lubricated bearing tested at Sandia National Laboratories
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Yoke/split bearings/journal sleeve
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Photograph of long-shafted hot pump suspended to the side of the flow loop and support structure
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Pump outlet head and motor current draw as a function of salt flow rate and salt temperature. The symbols correspond to tests conducted at different salt temperatures: •=345°C salt, ▿=400°C salt, ▪=455°C salt, ⋄=510°C salt, and ▵=566°C salt.

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