By adding in an additional overflow tank to pick up the waste water and pumped again. sketch below


Then in theory isn't it possible to create enough pressure to power this hydro turbine without needing a steam?

 

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No lo entiendo.

A ram pump absorbs the gravitational potential energy from a large flow with low head, and uses it to raise a small flow to a high head. It's like a step-up transformer or impedance converter, in electrical terms. If you want to lift one gallon 10 feet than you will need in excess of 10 gallons falling through one foot to provide the energy. It is a simple way of producing high heads when there is a plenty of energy available to be wasted in the low head flow.

Not sure where the electricity comes in. If you use an electric pump to raise the ten gallons through one foot back to the top tank you will use significantly more energy than had you used it directly to raise the one gallon through ten feet, due to losses.
 
I think the key word in the title is 'Micro.' If he's lucky he'll get a watt or two. Maybe he's hoping it 'works' like homoeopathy; the weaker the jet the more leccy it will generate.

I am sure a lot of well meaning experimenters have no concept of how much torque is needed to generate useful power at realistic speeds. They imagine the shaft should just spin freely as it does off-load. A jet sufficient to deliver even 1/2 hp would wrench that thing out of his hand and launch it across the garden.

Perhaps they imagine volts to be a measure of power.
 
I think the key word in the title is 'Micro.' If he's lucky he'll get a watt or two. Maybe he's hoping it 'works' like homoeopathy; the weaker the jet the more leccy it will generate.

I am sure a lot of well meaning experimenters have no concept of how much torque is needed to generate useful power at realistic speeds. They imagine the shaft should just spin freely as it does off-load. A jet sufficient to deliver even 1/2 hp would wrench that thing out of his hand and launch it across the garden.

Perhaps they imagine volts to be a measure of power.

I think you are absolutely right here. On a similar theme I've had to explain to people a few times why a car engine changes note and has to work harder when you switch the heated windscreen on. People often don't appreciate that generating voltage is easy, but generating power takes effort.
 

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