CO2 for Rez Cooling and Enrichment?

Deffinatly do NOT put copper in you tank! You WILL KILL your plants!

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Originally Posted by oldsanclem

do not ......
See pictures in my gallery, for solonide and wiring

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Hey SanClem!, :)

How you doing buddy?

Hey man, I just wanted to give you a cookie for your drawing.
Not that much people actually spend the time to do stuff like that.

And another cookie goes to StinkyAttic.

:)

Interesting idea about cooling the rez.

I should go do what I'm praising, but if we know the heat capacity of CO2, and the one of water... and how much you'll be "purging", we can know if it'll work without building it.

IMO, it's a great idea. But I think you'll have to "purge" many times to get a significant decrease in temps.
But hey man, really good idea and kudos! ;)

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Originally Posted by turtle420

if we know the heat capacity of CO2, and the one of water... and how much you'll be "purging", we can know if it'll work without building it.

....... But I think you'll have to "purge" many times to get a significant decrease in temps.

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Thanks for the cookie, yum.

The heat capacity of water is one of the most amazing properties of any chemical compound.

It's really high.

The heat capacity of CO2 is MUCH MUCH lower, so yeah, you're going to have to do a lot of purging to get it that much cooler, but every little bit counts and free cooling is better than none at all.

Exactly stinky. I figured every little bit cant hurt. I forgot to mention that I had figured copper or another metal would hurt the plant, so essentially I am going with the thinking that you could have the reservoir sitting in some other water around the reservoir (or find something that will carry the CO2 through the actual plant reservoir and not harm them).

But are you guys saying that if I just do a constant low seep (that would get exhausted every hour or so) that it wouldn't cool a tube of some sort going through the water at all? I mean, obviously when you purge it fast it cools the most...but wouldn't it still cool at a slower rate?

Also, I would never put my regulator in water. What I was saying was I could let my CO2 tank sit half in water that then surounded the reservoir water. No contamination. I havent used much CO2 so I dont know about whether its possible to let out a nice big burst of CO2 every so often, get my PPM, and hopefully do some cooling on the way out of the tank.

Low seep will work more efficiently, take a propane forklift for instance. After its been running for a bit the tank will be cold. Its a slow depressurization...increase the flow until you are satisfied with the temp reduction.