Size a solar-powered reverse osmosis desalination system for freshwater production from seawater.
Input Parameters
Results
--
Energy Required
kWh/m³
--
PV Array Size
kW
--
Feed Water Flow
L/hr
--
Daily Energy
kWh
Note: Seawater RO requires 3-6 kWh/m³. Energy recovery devices can reduce consumption 40-60%. Brackish water needs only 0.5-2 kWh/m³.
Reference
Osmotic Pressure = Salinity x 0.0007 bar (per ppm)
Operating Pressure = Osmotic x 2.5 factor
Specific Energy (kWh/m³) = (Pressure x 0.06895) / (36 x Recovery x Eff)
PV kW = Daily kWh / (Sun Hours x 0.80)