Helping my son with his homework, which is to cool down a cup of coffee as quick as you can, without touching the cup. There's a load of different options to do this, but I thought I would explore chilling water around the cup.
We have done a couple of experiments by putting the coffee cup into a litre jug with cold water and them cold water with ice, which does work as this dissipates the warmth of the coffee cup.
But I am now wondering if instead of using ice (as this is somewhat easy) to use a peltier to reduce and then keep the ambient temperature of the water surrounding the coffee cup low.
So the question I have is, could a peltier be used to keep say a litre of water cold, which in turn would reduce the temperature of the coffee cup? If so, I wouldn't mind trying to make one!! so what size peltier would I need and I'm assuming I would need a heatsink. I have a mate whos an electrician, so hopefully him will help me turn a converted Tupperware with a hole cut out so the cold side could cook the water.
Any ideas would be greatly appreciated!!!!
We have done a couple of experiments by putting the coffee cup into a litre jug with cold water and them cold water with ice, which does work as this dissipates the warmth of the coffee cup.
But I am now wondering if instead of using ice (as this is somewhat easy) to use a peltier to reduce and then keep the ambient temperature of the water surrounding the coffee cup low.
So the question I have is, could a peltier be used to keep say a litre of water cold, which in turn would reduce the temperature of the coffee cup? If so, I wouldn't mind trying to make one!! so what size peltier would I need and I'm assuming I would need a heatsink. I have a mate whos an electrician, so hopefully him will help me turn a converted Tupperware with a hole cut out so the cold side could cook the water.
Any ideas would be greatly appreciated!!!!
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