Diy Chiller

[Lateral Line]

Peltier devices are very inefficient in terms of the heating/cooling acheived per unit power supplied.

 

[Rooster]

Peltier devices are very inefficient in terms of the heating/cooling acheived per unit power supplied.

...So are fridges and coolers !

 

[MHunt]

Has anyone tried to create such a device? It may be worth trying now the technology's been round for a while. If they can cool a processor sufficiently enough that it doesn't melt, surely it would be efficient enough to cool/heat the water that it's in contact with?

 

[Lateral Line]

...So are fridges and coolers !

In Carnot terms, a modern fridge is about 35-40% efficient, typical Peltier device, 5-8%.

 

[bluenavigator]

There is one way to cool the water in the tank. Remove the canopy off the hood. It releases the heat out quicker.

The smaller tank, its water's temperature rises quicker. Meaning the larger tank, it will stay cool for longer time.

Just my 2 cents.

 

[The-Wolf]

There is one way to cool the water in the tank. Remove the canopy off the hood. It releases the heat out quicker.

no good for fish that fly (hatchets), jump (danios) or crawl (reedfish, bichirs etc) out of tanks

 

[MHunt]

There is one way to cool the water in the tank. Remove the canopy off the hood. It releases the heat out quicker.

The smaller tank, its water's temperature rises quicker. Meaning the larger tank, it will stay cool for longer time.

Just my 2 cents.

Doesn't help if the ambient temperature outside the tank is what is raising the temperature!

 

[bluenavigator]

Doesn't help if the ambient temperature outside the tank is what is raising the temperature!

Very true! I had my house's thermostat set to 78°F (25.5°C). All unheated tanks are at all temperature, 76°F (24.4°C). Of course, I had removed all canopies removed from the hoods. The fluorescent light does make heat into the water.