What's the best gas for cooling?

[Senf]

I want to pump cool gas in radiant pipes to some part of my base.

[bumbaclad]

The gases have a thermal conductivity stat like everything else. Click on the gas and look at its properties or search it in the database.

[Lifepath [CdE]]

Most comonly used is Hydrogen i believe

[GD]

It's a difficult question because it depends on so many parameters.
- The temperature range
- The environment
- The used pipes and its material
- The distance
- How fast you need to get/loose the energy on source/target
- How much room you have on the source and the target

For transportation heat capacity is important as well maybe even more. Sometimes it might even be better to have not a too high conductivity because you might loose/gain energy in transit depending on the pipes used. Even isolated ceramic pipes are not 100% safe against heat exchange. Hydrogen is often prefered and Steam for High Temperature above 120°C. Both gases have good values in both parameters. In truth you can also use other gases, even simple oxygen, you might need a little longer to get/release the heat/cool but it can be used.

If you can use fluids for cooling/exchange. They transport much more energy. Polluted Water is a very good first coolant and easy to get, Crude Oil and Petroleum are good for high temperature between 120°C and 500°C and also for low temperature down to -40°C. Super Coolant is best but also much harder to get.

[Meat Man (Alfons)]

Hydrogen, simply put. But you could use liquid as well as they can have much more cold energy(A physicist would kill me for this terminology) than gas, a gaspipe holds 1kg, a liquidpipe has 10kg.

If you're far into lategame you can use Super Coolant, if not, oil/petroleum works quite well too.

[Vampirate]

Hydrogen is what I'd use simply because it's consistent I myself usually find a cool steam geyser, and build an insulated room next to it, I want to leave two blocks at the bottom for oxygen generation using the water pumped in from the water made by the geyser.

Then I'll make a line of grates. I want to make the space above them three tall. I'll then put eight to ten weezlewurts on that row. Another line of grates above them, then you can pumps set up to distribute the super cooled air throughout the base.make.

Use gold amalgum for the water pump, and the air vents holding up the pumps and sedimentary rock for the plant pots for the weezles. You're going to need air filters for each pump and you can pump the hydrogen to your hydrogen generator. It makes your oxygen generation semi self powering that way.. Eventually you'll need to pump more water even with the cool steam vent, but by then you should have found another which you can then just pump that water to the other source.

You'll want this all in an airtight insulated room. I suggest using igneous rock temp plates as well.
You'll also want this on its own transformer.

[SKull]

Hydrogen by quite a bit. Same for heating, if that ever interests you. It also spreads temperature very well, so a room you want cooled will cool much more quickly and evenly if you fill it with hydrogen first.
I believe chlorine is the worst, although I might be wrong. It just seems like changing the temp of chlorine takes forever.

[GD]

Just that you know Steam is even better than Hydrogen value-wise, it's only drawback is that it can only be used for High Temperature environments above 120°C.

Chlorine is bad for transport yes, it take ages to get cooled/heated and can't take much of it anyways. But when you need localized extreme heat areas in otherwise cooler areas it has is uses it don't spread heat or cool as fast.

[SKull]

Yes exactly. A sort of gas insulation really.