Here is an article on the Huffingtonpost http://www.huffingtonpost.com/2012/11/09/african-teenagers-develop-pee-powered-generator_n_2101778.html

[img]http://4.bp..com/-DF6aCEc1k08/UJtPCCRqRCI/AAAAAAAAXEI/NroVJEByFFI/s1600/Urine_powered_generator.jpg[/img]

What vitriol against these children. Children!


people should spend their time trying to encourage them, offering ideas, instead of eyes-popping out in sweating black face, frothing at the mouth and posting crap about busted and fake. Even if you're convinces its fortean science your job should always be to encourage and shower children with love.

Reluctant to bring race into this but imagined if they had been white or Asian girls.


Wow, look at the way the people of African decent come here to show their hatred thus proving why Africa and black people are doomed.

the day is near when every man woman and child and their pets and beast of the land will be able to sell their excrement on the market and have assured income,or at least put it to home use saveing money on energy markets...

Okija_juju: [b]I died..

Students with their Urine powered generator at Maker Faire Africa in Lagos

Now on the face of it it ticks a lot of boxes – developing nation ingenuity, young kids sticking it to the energy companies and the green credentials (hey – urine’s a renewable resource right?).

But I’m not so convinced.

The claims

The claims is that “1 Liter of urine gives you 6 hours of electricity.”

Wow, 1 Litre of urine and 6 hours of electricity.

The following is on the site explaining it.

The system works like this:

Urine is put into an electrolytic cell, which separates out the hydrogen.
The hydrogen goes into a water filter for purification, which then gets pushed into the gas cylinder.
The gas cylinder pushes hydrogen into a cylinder of liquid borax, which is used to remove the moisture from the hydrogen gas.
This purified hydrogen gas is pushed into the generator.
Along the whole way there are one-way valves for security, but let’s be honest that this is something of an explosive device…

What is in Urine?

Going to that bastion of semi-reliable information (wikipedia) – I find that:

Urine is an aqueous solution of greater than 95% water, with the remaining constituents, in order of decreasing concentration urea 9.3 g/L, chloride 1.87 g/L, sodium 1.17 g/L, potassium 0.750 g/L, creatinine 0.670 g/L and other dissolved ions, inorganic and organic compounds.

Ok, so nearly all water – and 9.3 g/L of urea. Hrmm.. On the face of it and with limited research into the chemical energy in urea – that’s not sounding like something that is likely to power a generator with a 10-40% efficiency (and that’s being very generous with the range).

The apparatus

Let’s take a look at the picture from here.




The setup

Now it looks to me like a very daggy looking battery (the “electrolytic cell”), several water filter holders, a modified gas cylinder, some tubing, clamps and a generator. The bit from the generator to the electrics is pretty non-contentious – have seen similar things – a light to provide some load/indicator that energy is getting through and some powerpoints to plug the stuff in you want power to.

The “electrolytic cell”

Can’t really see what’s inside that or how it is filled up with urine etc – but keep in mind it’s got to be well sealed enough to pressurise the gas cylinder via the water filter thing in between. Also curious about the wires leading from it to the generator. What’s up with that?


Close-up of the battery and generator



Have they just hooked up the battery to an inverter perhaps? Surely people will expect the generator to be running while it is powering the lights. Or is it supposed to close the loop on supplying power back to produce hydrogen?

Water purifiers



Next in the chain is the first of the water filters. What’s it for? “The hydrogen goes into a water filter for purification, which then gets pushed into the gas cylinder.”
Ok, let’s go with that. First up it has no filter in it. Next up: it’s not pushing liquid through and a “water filter” only makes sense if you’re pushing water through it – I’m not sure what the point of it is – surely the gas would just bubble straight through to the exit? e.g. the liquid in it is irrelevant like blowing into a glass with a straw not in the water – the air doesn’t magically go down into the water – it just stays at the top. If you filled it to the top you might get a bit of water blown out initially but then it would have cleared a path. If it had a hose down it you’d get a sheeha/bong type result – but how it is currently I don’t see how it does anything. It’s ok, these kids don’t hang out with the drop-out pot-heads enough to know how to fashion a bong out of an Orchy bottle. Even if you tipped it upside down during operation it would proceed to blow out all the water until it was clear and then the gas would flow straight through.

Here’s how they are usually set up to filter water:


Water filter.

So water comes in – is pushed or pulled through the filter – and then flows out. If you don’t have the filter there – the water just flows straight out.. If you tried blowing air through – it’d just flow straight to the exit.

So you could take that out of the system – a sign of many “perpetual motion” and “free energy” machines where they stick a big coil, magnet or a mystery big resistor or something in there.

The gas bottle
There’s some things wrong with the gas bottle too.




Some suspect bits on here too

No clamp on the “input” – which I’m not sure what that is and how it works. Looks like a repair job, but not sure what that other bit is – looks like a plug or something on the side of it. The corrosion might be because they welded the wrong metal on there? But generally you don’t want too many valves/openings in your tank as it is a point of failure – certainly not a big drain sized opening or whatever that is.

Another water filter



Then there’s the next bit – don’t have any idea why you would have filters on the stuff going out to the atmosphere (I presume that’s what that is).


What is all this on the end?

Huh? Why would you care about filtering whatever comes out that bit – either they’ve hooked up their sham rig incorrectly (e.g. this stuff with the filters should be hooked to the electrolyte cell or to the gas tank or somewhere that makes sense. Double filtering something that is going nowhere – why? Again, those could be removed for the same impact.

And finally – 6 hours of running a generator on a litre of petrol is probably pushing the friendship a bit – 6 hours of running a generator on 95% water content – unless it’s uranium or fairy dust disolved in it is probably a stretch.

Conclusion

While I’d love to believe the story – I just don’t buy it. There’s either something very wrong with their setup or it’s just pointlessly complex for no apparent reason.

I’m labelling this a quack gadget – in line with the perpetual energy machines, magnet only motors.. Urine powered generators are in good company.

But happy to be proved wrong and we can finally harness the grubs who piss in the street and the urinal at the pub could run the lights.

Anyone else got any thoughts?

[/b]

Show us what invention you have made. Maybe it might beat the Girls achievements. Lazy man, devils workshop.

This news don reach yahoo frontpage ooo. Amazing!

http://news.yahoo.com/blogs/sideshow/urine-powered-generator-unveiled-international-exhibition-234718329.html

http://www.yahoo.com/

[quote author=twinskenny][/quote]
twinskinny u dey try ooo

HAHAHA ..... I am learned abeg.... I refuse to be subject of research or experiment here .. lol

na Yoruba dem spoil our school system, always passing out primary school equivalent as graduates. upon all them so called education nobody teach them the meaning of of "INVENT"

agitator: na Yoruba dem spoil our school system, always passing out primary school equivalent as graduates. upon all them so called education nobody teach them the meaning of of "INVENT"

Your Father!! kwashiorkor baby.

lagcity:

Your Father!! kwashiorkor baby.

That one no go change the truth shebi

https://www.youtube.com/watch?v=kcQBf2ip2pQ

Teenagers in Nigeria create a urine-powered generator

agitator: na Yoruba dem spoil our school system, always passing out primary school equivalent as graduates. upon all them so called education nobody teach them the meaning of of "INVENT"

Na girls like this go invent wetin go keep your sorry ibo life in the future. Watch this place then you'll know what is called invention. Yeye shameless tribalist.

When boy sare busy pulling triggers in school,girls are good doing the country good.......a big kudos to you girls,am very impressed, wish this undemocratic government can support this invention to a broader scale.

You don't need government to support your invention or scientific discovery if you do hmmm its a set back for you.
None of the multi national companies are ready to support things that the whole world can benefit.they prefer to donate dollars to the most naked girl in the house big brother africa by dstv and some companies like nigeria breweries doing ultimate guilder you get paid for being able to run in the jungle and the talent hunt by some companies too at the end you get money for being able to sing.for gods or God sake where are the scientist and engineers in various field any support at all to encourage them .its a pity,without good package for this people to develop will be difficult the best among us who can find his way to developed countries with good package will leave for good forever now tell me how can this country develop.

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These girls were shown on aljazeera last night.

[quote author=twinskenny post=12879867][/quote] yeye boy