Too much electricity

Discussion about any electrical topic except 240 volts. Solar, converters, inverters, lights, battery chargers, etc
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T1 Terry
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Re: Too much electricity

Post by T1 Terry »

Back on the water recovery idea. A system of transferring the waste heat from the solar panel backs to heat water both the shower fresh water and the shower waste water. The waste water tank has a electric turbo fitted to reduce the air pressure inside the tank causing the water to boil below 100*C and the resultant steam is drawn through the turbo and pressurised in a second tank causing the steam to condense to water again. This is then fed through a filter and UV light to kill any of the remaining pathogens and this water is returned to the fresh water tank. The waste solar electricity is used to drive the various pumps, turbo and UV lamp.

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dapope
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Re: Too much electricity

Post by dapope »

40ah approx to do an all electric cooked breakfast this morning , including boiling the full jug. At 1230pm we are 89% full, wife on desktop pc, gross output of solar 38.5a net to batteries around 25a.. Should be full around 230 pm.
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bagmaker
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Re: Too much electricity

Post by bagmaker »

T1 Terry wrote:Back on the water recovery idea. A system of transferring the waste heat from the solar panel backs to heat water both the shower fresh water and the shower waste water. The waste water tank has a electric turbo fitted to reduce the air pressure inside the tank causing the water to boil below 100*C and the resultant steam is drawn through the turbo and pressurised in a second tank causing the steam to condense to water again. This is then fed through a filter and UV light to kill any of the remaining pathogens and this water is returned to the fresh water tank. The waste solar electricity is used to drive the various pumps, turbo and UV lamp.

T1 Terry
I am actually thinking more along the lines of converting the grey water to fresh in the style you suggest, except heating and condensing with refridgeration and lowering pressure with a simple pump- a turbo is not the style I dont think, there is significant pressure change but not much flow. More like a jabsco style impeller or high-end diaphragm.
Hence the request for excess power estimates to evaluate how much can be converted.
At the moment I am surmising about 1kw of usage as a nice round figure.
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erichaussie
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Re: Too much electricity

Post by erichaussie »

With an abundance of electricity, the only reason to have to go back to civilization is water. I love the idea of extracting water from moisture in the air. Although there seem to be some commercial devices available it is difficult to find out more. Does anybody know how feasible this would be in a RV?
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T1 Terry
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Re: Too much electricity

Post by T1 Terry »

Maybe in summer along the coast, but inland there isn't near as much humidity to collect, this is part of what an air con system does when dehumidifying the room. Recycling the shower water with a filter and U/V steriliser system would be more productive I'd think, but you can collect the water from your air con and add that to the same tank so it's all filtered and sanitised.

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Busman
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Re: Too much electricity

Post by Busman »

You remember the idea that was floated about pumping sea water up the GDR and returning it to the sea ? After getting the fresh from it.
Put a specially designed cover over the open channel, evap does the rest, condensate runs down the plastic into a specially designed gutter and CAUGHT !
Only an old greenhouse builder knows how effective this would be.
Do we have the will/knowledge/balls/even audacity to suggest such a scheme.
NO, last punt like this was the Snowy. And that worked !
Now too much PC in the way.
Oh well, the rest of the world's population will just have to starve I guess..............
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bagmaker
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Re: Too much electricity

Post by bagmaker »

we can charge all our toys too

https://www.youtube.com/watch?v=N8_3Ja-EMPU

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