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Salinity Gradient Power (Pressure-Retarded Osmosis)

Interactive pressure-retarded osmosis simulator: tune seawater salinity, hydraulic backpressure, temperature and membrane permeability, and watch the van't Hoff osmotic pressure, water flux and turbine power output respond in real time.

Climate, Ecology & Environment3DModerate60 FPS📱 Mobile-adapted⇄ 2D version

Wherever a river meets the sea, a huge amount of chemical energy is released as fresh and salt water mix — normally wasted. Pressure-retarded osmosis captures it by separating the two streams with a semi-permeable membrane and letting osmosis do the pumping: fresh water is drawn across into a pressurized seawater chamber, and the extra pressurized volume drives a turbine. This simulator models the real van't Hoff osmotic-pressure driving force and the solution-diffusion flux equation, so you can dial in seawater salinity, temperature, membrane quality and backpressure and watch the water flux, regime (power-generating PRO vs. power-consuming reverse osmosis) and turbine power density respond exactly as the underlying thermodynamics dictate.

⚙ Under the hood

Simulate a pressure-retarded osmosis power plant where fresh river water is drawn across a membrane into pressurized seawater, spinning a turbine — tune salinity, backpressure, temperature and membrane permeability and watch the van't Hoff osmotic pressure, water flux and power density respond in real time.

renewable energyosmosismembrane scienceclimate technologyblue energythermodynamics

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install