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Title: January--March performance of shallow solar ponds with and without reflectors on their north side

Abstract

The experiments analyzed here are part of a continuing series to determine the merits of using mirrors with shallow solar ponds. On the north sides, these ponds have mirrors which are half as high as the ponds are wide (N-S). The mirrors are adjusted to be particularly effective in the middle of winter. The ponds have foamed insulation underneath; the small ones also have insulation around the edges. Water is contained in vinyl water bags, and one glazing provides a dead air space over the bag. The glazing is corrugated fiberglass, horizontal over the small ponds (A and B), and arched over the 12' N--S dimension of the large ponds (4 and 6). In each case, essentially identical ponds were used, one with a mirror and one without, to provide a controlled comparison. Ponds A and B are each 2' x 10'; ponds 4 and 6 are 12' x 50'. The long dimensions are E-W.

Authors:
Publication Date:
Research Org.:
California Univ., Livermore (USA). Lawrence Livermore Lab.
OSTI Identifier:
5290539
Report Number(s):
UCID-17663
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; SOLAR PONDS; PERFORMANCE; CALCULATION METHODS; COVERINGS; EFFICIENCY; EQUATIONS; FLAT MIRRORS; FOAMS; MATHEMATICAL MODELS; PERFORMANCE TESTING; ROOFS; SOLAR REFLECTORS; SPECIFIC HEAT; THERMAL INSULATION; WATER; COLLOIDS; DISPERSIONS; HYDROGEN COMPOUNDS; MIRRORS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PONDS; SOLAR COLLECTORS; SOLAR CONCENTRATORS; TESTING; THERMODYNAMIC PROPERTIES; 141000* - Solar Collectors & Concentrators

Citation Formats

Hewett, L.D. January--March performance of shallow solar ponds with and without reflectors on their north side. United States: N. p., 1977. Web.
Hewett, L.D. January--March performance of shallow solar ponds with and without reflectors on their north side. United States.
Hewett, L.D. Wed . "January--March performance of shallow solar ponds with and without reflectors on their north side". United States. doi:.
@article{osti_5290539,
title = {January--March performance of shallow solar ponds with and without reflectors on their north side},
author = {Hewett, L.D.},
abstractNote = {The experiments analyzed here are part of a continuing series to determine the merits of using mirrors with shallow solar ponds. On the north sides, these ponds have mirrors which are half as high as the ponds are wide (N-S). The mirrors are adjusted to be particularly effective in the middle of winter. The ponds have foamed insulation underneath; the small ones also have insulation around the edges. Water is contained in vinyl water bags, and one glazing provides a dead air space over the bag. The glazing is corrugated fiberglass, horizontal over the small ponds (A and B), and arched over the 12' N--S dimension of the large ponds (4 and 6). In each case, essentially identical ponds were used, one with a mirror and one without, to provide a controlled comparison. Ponds A and B are each 2' x 10'; ponds 4 and 6 are 12' x 50'. The long dimensions are E-W.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 30 00:00:00 EST 1977},
month = {Wed Nov 30 00:00:00 EST 1977}
}

Technical Report:
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