Heat extraction from salt-gradient solar pond

Journal Article · Thu Sep 01 04:00:00 EDT 1983 · J. Energy Eng.; (United States)

DOI:https://doi.org/10.1061/(ASCE)0733-9402(1983)109:3(152)· OSTI ID:6796710

Kinose, K

Heat extraction is done by recycling pond water. Hot water stored in the lower region (convective storage zone) of a salt-gradient solar pond is pumped from the end of the pond, passed though a heat exchanger, and returned to the other end of the pond. By the water circulation, a horizontal flow takes place in the convective storage zone. It is necessary that the velocity of the flow should be small enough to prevent the disturbance of the concentration gradient in the upper region (non-convective zone). The extent of the disturbance is estimated by analyzing a problem of the stratified flow in hydraulics. The variation of the storage temperature owing to the heat extraction is estimated by a simulation method. The comparison of an experimental result on heat extraction with the calculated values supports the availability of the analyses.

• Research Organization: National Research Inst. of Agricultural Engineering, Ibaraki, Japan
• OSTI ID: 6796710
• Journal Information: J. Energy Eng.; (United States), Journal Name: J. Energy Eng.; (United States) Vol. 109:3; ISSN JLEED
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
142000* -- Solar Energy-- Heat Storage-- (1980-)
DENSITY
ENERGY STORAGE
EQUIPMENT
FLUID FLOW
HEAT EXTRACTION
HEAT STORAGE
NUMERICAL SOLUTION
PHYSICAL PROPERTIES
PONDS
SALINITY GRADIENTS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR PONDS
STORAGE
SURFACE WATERS
TEMPERATURE DISTRIBUTION