Never buy another battery, just a packet of salt!

[rooel]

A glass of salt and a glass of fresh water, plus the magic membrane, perhaps a little pumping pressure via the pedals, and we need never buy another battery:

River estuaries a source of 'blue' power - from Practical Boat Owner magazine

 

[carpetbagger]

yes but you will need good waterproofs having the rhine and one side and the north sea at the other !!

 

[flecc]

Pressurised membranes already exist in desalination plants in many locations, it seems it might only be the unpressurised membrane that's being developed?

A great generation theory which I'm prepared to bet will never appear in practice though. Another one like lightning capture.
.

 

[Pedro62]

I don't uunderstand how it works....

 

[wotwozere]

Hi Pedro

Back with the mix of the miracle maker, ask flecc he got a grasp on ting.

Come on you blues.

thx

Bob

 

[flecc]

Two ways Pedro.

In the first, with salty seawater on one side of a thin membrane and fresh water on the other, the fresh water naturally migrates though the membrane to the salty side, building up the pressure there. That pressurised water can then drive a turbine and connected dynamo to generate electricity.

In the second way, certain of the atom ions in the fresh water and certain of the atom ions in the salty water are attracted through the membrane to the other side. Since it's negative chloride ions going to the fresh water and positive sodium ions going to the sea water, we end up with all the positive one side and all the negative the other, so we have a battery full of charge from which we can draw electricity.

P.S. Crossed with Bob's post extolling the virtues of Chelsea.
.

 

[wotwozere]

Now Dat what am talkin About