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

Technical Report · Wed Nov 30 00:00:00 EST 1977

OSTI ID:5290539

Hewett, L D

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.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5290539
• Report Number(s): UCID-17663
• Country of Publication: United States
• Language: English

Related Subjects

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