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+ - Pee-Powered Generator Unveiled at Maker Faire Africa-> 1

Submitted by hypnosec
hypnosec (2231454) writes "Four Nigerian girls aged between 14 and 15 have unveiled their creation – a urine-powered generator that is capable of generating six hours of electricity using a liter of pee. Showcased at the fourth annual Maker Faire Africa in Lagos, Nigeria, the generator is an eco-friendly power source that generates electricity by separating hydrogen present in the excreted bodily fluids with an electrolytic cell. The design is more or less crude as of now and if enough attention and funding are made available, chances are that this pee-powered generator may very well be available at your local hardware store."
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Pee-Powered Generator Unveiled at Maker Faire Africa

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  • This is not an energy source - it's merely yet another (lossy) energy storage mechanism. From the quote, below, it seems step 1 uses (quite a lot) of energy to separate the hydrogen form the h2o in the urine.

    Also, is this a continuous process, or are steps 1 and 2 performed first until the cylinder is full then the remainder of the steps carried out?

    Where does the energy come from for step 1? Where does the energy come from for all the "pushing" going on? That sounds like pumping, and that takes energy.

    The overall process is divided into four stages: first hydrogen is separated from the urine using an electrolytic cell; secondly the hydrogen goes through a water filter for purification following which it is pushed into a gas cylinder; next up the gas cylinder pushes hydrogen into a cylinder of liquid borax that helps removing any moisture from the hydrogen gas and finally the purified hydrogen gas is pushed into the generator.

I wish you humans would leave me alone.

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