Heat extraction from a large solar pond
The largest operational, salt-gradient solar pond in the United States, occupying 2000 m/sup 2/, was constructed during 1978 in Miamisburg, Ohio. The heat from this solar pond, nearly 1055 GJ/y (1000 million Btu/y) is used to heat an outdoor swimming pool in the summer and an adjacent recreation building during part of the winter. A new heat exchanger system has been installed externally to the pond and operated successfully to deliver 391 GJ (371 million Btu) of heat during May-June. Hot brine water is drawn through a diffuser by a self-priming pump fabricated from fiberglass reinforced plastic. The brine water passes through copper-10% nickel tubes of a tube-and-shell heat exchanger and is then returned to the bottom of the pond. Cooling water from the swimming pool circulates through the shell side of the heat exchanger. Several designs and flow velocities of the brine inlet and outlet diffusers into the pond have been tested in order to minimize the effect of turbulence upon the salt gradient zone.
- Research Organization:
- Mound Facility, Miamisburg, OH (USA)
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 6951504
- Report Number(s):
- MLM-2962-OP; CONF-821101-9; ON: DE82019322
- Resource Relation:
- Conference: ASME winter annual meeting, Pheonix, AZ, USA, 14 Nov 1982
- Country of Publication:
- United States
- Language:
- English
Similar Records
Heat extraction from a large, salt-gradient solar pond
Miamisburg salt-gradient solar pond: mid-1980 status report. [For swimming pool heating]
Related Subjects
SOLAR PONDS
HEAT EXTRACTION
CONSTRUCTION
DAILY VARIATIONS
DESIGN
DIFFUSERS
EXPERIMENTAL DATA
FLUID FLOW
HEAT EXCHANGERS
OHIO
PUMPS
SALINITY GRADIENTS
SWIMMING POOLS
TEMPERATURE DISTRIBUTION
DATA
EQUIPMENT
FEDERAL REGION V
INFORMATION
NORTH AMERICA
NUMERICAL DATA
PONDS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SURFACE WATERS
USA
VARIATIONS
141000* - Solar Collectors & Concentrators
140907 - Solar Thermal Utilization- Water Heating