Solar powered electrodialysis. Part I. Design of a solar powered electrodialysis system for desalting remote, brackish water sources. Final report

Technical Report · Sat Dec 01 00:00:00 EST 1979

OSTI ID:6659810

An evaluation was undertaken of alternative designs of a solar powered electrodialysis (SPED) system for a desalting application that is typical of the brackish water sources in the southwestern United States. The designs are evaluated relative to total water costs for an average water production of 4,000 gallons per day where the solar isolation averages 24 million joules per square meter per day (10 hours of collection) and the feed water contains 2,200 parts per million of dissolved solids. The optimal design, at current F.O.B. costs for a photovoltaic (PV) array of $10 per peak watt, minimizes the electrical storage requirements by matching the electrical duty of the desalting plant to the electrical output of the PV array. Including the requirements for well pumping (200 foot depth), the total water cost is $13.90/Kgal. At $5 per peak watt, the water cost drops to $12.00/Kgal. If well pumping is not required, the water cost can be further reduced to $9.60/Kgal. At $5 per peak watt, the water costs for the SPED plant and a generator powered plant are equal when the cost of fuel at location is $1.70 per gallon. Diagrams of the plant layout, process flow sheet and control circuit are included.

• Research Organization: Ionics, Inc., Watertown, MA (USA)
• DOE Contract Number: DI-14-34-0001-8576
• OSTI ID: 6659810
• Report Number(s): PB-80-203805
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
DESALINATION PLANTS
ELECTRODIALYSIS
PHOTOVOLTAIC POWER SUPPLIES
ECONOMICS
COST
DESALINATION
PHOTOVOLTAIC POWER PLANTS
SOUTHWEST REGION
WELLS
DEMINERALIZATION
DIALYSIS
ELECTRONIC EQUIPMENT
EQUIPMENT
INDUSTRIAL PLANTS
NORTH AMERICA
POWER PLANTS
POWER SUPPLIES
SEPARATION PROCESSES
SOLAR EQUIPMENT
SOLAR POWER PLANTS
USA
140600* - Solar Energy- Photovoltaic Power Systems