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Dear Reader!
Let me put the whole question to the ztforum
Would it be able to cool a permanent magnet that absorbs about 200 Watt from an electron beam and has a length of 6 cm and a diameter of 2.2 cm by Peltier effect under the condition that the cooling device and the connections must not take up much volume because there is a high electron flux in the place (all in vacuum)? The heat would have to be transported over at least 20 cm where a heat exchanger could be installed. But would it be possible to transport the heat via electric current over a distance of about 10 m to the outside of the vacuum beam pipes?.
Thank you for answering,
Christoph Weinrich
Re Is cooling by Peltier effect possible in this
How hot does the magnet get? With the aid of heat pipes it may be possible to employ a TE pump in this situation, though 200W would require several high current devices and an effective heat exchanger on the hot side. Modern CPU sink fan combinations can cool a processor die of just 12mm sq. approx dissipating around 80-90W to a comfortable 40-45 deg C, what temperature do you need to fetch the magnet down to?
Simon