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Technology / Re: Can you make a power shower with induction heating?
« on: 16/09/2014 09:42:58 »
Yes, but if it only takes 5 watts of electrical power it will only deliver 5 watts of heat (minus all the inefficiencies of the inverter). If you want to wash with flowing water at 2 liters/minute you need about 3,000 watts to raise the incoming water (at say 20 deg C) to 40 degrees. The best way to achieve that is with an immersed resistive heater, which is about 99% efficient at coverting electrical energy into useful heat (you lose about 1% heating the incoming wires) - i.e. an ordinary power shower.
Best of all, immerse yourself in a well insulated bath (say a styrofoam coffin) with a tiny amount of water, and wait until the 200 watts of your body heat has raised the water temperature to about 30 degrees, then apply soap. No electrical power, minimal waste water - the ultimate ecobath!
Best of all, immerse yourself in a well insulated bath (say a styrofoam coffin) with a tiny amount of water, and wait until the 200 watts of your body heat has raised the water temperature to about 30 degrees, then apply soap. No electrical power, minimal waste water - the ultimate ecobath!
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