Renewable Energy Made by Mixing Salt and Fresh Water

Wednesday, September 2, 2009 - 09:42 in Earth & Climate

(PhysOrg.com) -- When a river flows into the sea, the location is more than just a haven for water commerce. The mixing of fresh and salt water that occurs at an estuary also dissipates energy, as the different salinity waters combine into a state of less-ordered, uniform salinity. The mixing generates a significant 2.2 kJ of energy per liter of fresh water that flows into the sea.

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