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DIY Thermoelectric Peltier Refrigeration
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<blockquote data-quote="Ded Driver" data-source="post: 516382" data-attributes="member: 12692"><p>I see a couple of these units on eBay that have a large heatsink & fan on the hot side, & a smaller (about half the size) heatsink & fan on the cold side, with no water adaptor, & although no doubt the water would help with the efficiency, it comes at the cost of more power consumption for a pump.</p><p>If a water cooled system is used, I am thinking that by careful positioning/elevation of the water-air heat exchanger at the end the piping (with a small fan), the pump could be left out & just rely on thermal circulation of the water (hot water rises, colder water from the bottom flows back to the peltier unit.</p><p>the trick would be to have the hot side piping higher, but not too high, & the cold return slightly higher so it gravity feeds cooler water back.</p></blockquote><p></p>
[QUOTE="Ded Driver, post: 516382, member: 12692"] I see a couple of these units on eBay that have a large heatsink & fan on the hot side, & a smaller (about half the size) heatsink & fan on the cold side, with no water adaptor, & although no doubt the water would help with the efficiency, it comes at the cost of more power consumption for a pump. If a water cooled system is used, I am thinking that by careful positioning/elevation of the water-air heat exchanger at the end the piping (with a small fan), the pump could be left out & just rely on thermal circulation of the water (hot water rises, colder water from the bottom flows back to the peltier unit. the trick would be to have the hot side piping higher, but not too high, & the cold return slightly higher so it gravity feeds cooler water back. [/QUOTE]
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Outdoor & Recreation
Camping
DIY Thermoelectric Peltier Refrigeration
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