Design Construction And Initial Operation Of The Los Alamos National Laboratory Salt Gradient Solar Pond PDF Download
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Release | : 1983 |
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Download Design, Construction, and Initial Operation of the Los Alamos National Laboratory Salt-gradient Solar Pond Book in PDF, ePub and Kindle
A 232 m2 solar pond was constructed at Los Alamos National Laboratory for the purpose of studying pond hydrodynamics on a large scale and to complement the flow visualization and one-dimensional pond simulator experiments that are ongoing at the Laboratory. Design methods and construction techniques, some of which are unique to this pond, are described in detail. The pond was excavated from a soft volcanic rock known as tuff; such rock forms a large fraction of the Los Alamos area surface geology. Because tuff has a small thermal conductivity, little insulation was required to reduce perimeter energy losses. In addition, the strength of tuff permitted the pond to be built with vertical side walls; this design eliminated local side wall convection in the gradient zone that is possible with sloping side walls. Instrumentation in the pond consists of traversing and fixed rakes of thermometers and salinity probes, an underwater pyranometer, and a weather station. The traversing rake is a wheeled trolley driven vertically on a rectangular rail. Installed on the trolley are coplanar platinum RTDs, a point conductivity probe, and an induction salinometer. The stationary rake supports 28 thermocouples and 28 sample-fluid withdrawal taps located every 10 cm. About 127 T of sodium chloride has been introduced and is nearly dissolved. A 120-cm-thick salinity gradient was established and the pond is heating. Preliminary results indicate a lower-convective-zone heating rate of 1.2°C/day during the pond's first month of operation. Recommendations on pond design, construction, and instrumentation are presented.
Author | : Y. S. Cha |
Publisher | : |
Total Pages | : 52 |
Release | : 1981 |
Genre | : Solar ponds |
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Download Design, Construction, and Initial Operation of the ANL Research Salt Gradient Solar Pond Book in PDF, ePub and Kindle
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Release | : 1983 |
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Download Daily Results of the Initial Operation of the Los Alamos Salt-gradient Solar Pond Book in PDF, ePub and Kindle
The results of analysis of the initial data obtained on the Los Alamos National Laboratory salt-gradient solar pond, a 232 m2 pond constructed for the primary purpose of studying pond hydrodynamics, are presented. The pond and the data-acquisition system were complete and in full operation by August 14, 1982. By September 21, 1982, the lower convecting zone had reached a temperature of 56°C. An energy balance was performed over this period and is presented. Soil conductivity determinations have been made from the data, and the method is discussed. As a result of a leak discovered in the pond in September, a method of determining the leak rate was developed, and the results are included.
Author | : John R. Hull |
Publisher | : Springer |
Total Pages | : 304 |
Release | : 1988-12-31 |
Genre | : Mathematics |
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Download Salinity Gradient Solar Ponds Book in PDF, ePub and Kindle
Despite a dearth of both water and love, the family discovers, through sorrow and fear, the green kiss of the Kappa Child, a mythical creature who blesses those who can imagine its magic -- back cover.
Author | : Los Alamos National Laboratory |
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Total Pages | : 192 |
Release | : 1984 |
Genre | : Research |
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Download Publications of Los Alamos Research Book in PDF, ePub and Kindle
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Total Pages | : 884 |
Release | : 1984 |
Genre | : Solar energy |
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Download Solar Energy Update Book in PDF, ePub and Kindle
Author | : S. Terol |
Publisher | : Editorial CSIC - CSIC Press |
Total Pages | : 1942 |
Release | : |
Genre | : Renewable energy sources |
ISBN | : 9788400066727 |
Download Proceedings of the 1986 International Congress on Renewable Energy Sources Book in PDF, ePub and Kindle
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Total Pages | : 756 |
Release | : 1986 |
Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, ePub and Kindle
Author | : American Society of Mechanical Engineers. Solar Energy Division. Conference |
Publisher | : |
Total Pages | : 556 |
Release | : 1987 |
Genre | : Solar energy |
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Download Solar Engineering Book in PDF, ePub and Kindle
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Release | : 1984 |
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Download Salt-gradient Solar Ponds Book in PDF, ePub and Kindle
A description of salt-gradient solar ponds is presented. Guidelines concerning the construction and maintenance of the pond are discussed. A computer model was used to study layer migration in laboratory tanks and in an outdoor pond. The status of solar ponds is briefly discussed. An equation relating heat flux and salt flux at a boundary is included. (BCS).