Cooling O2

[Majorchubby]

I am not going to weigh in on any cooling debate but ask what people are doing to manage the heat from oxygen from a electrolizer? I have 1500 hours in the game but still feel like a noob when it comes to managing heat with the new build.For context, I am still early game and have never done a turbine build for cooling. Should I just use a cold biome until I get some steel and plastic and just go for that build?

[qda]

I usually rely on a cold geyser, the pools of polluted/salt water around the map, or an aquatuner. Wheezeworts if you're an adept, 4 per electrolyzer are enough. Also cold water from natgas/petroleum power setup if you happen to do that. But most of the time my first cooling comes from a cold liquid geyser. When I switch to electrolyzers, I usually have discovered most of the map, and the probability to get have of those is quite high. You could still use thermoregulators, but beware, they're quite power-hungry. I've never used a cold biome, but you can cycle oxygen through it for hundreds of cycles before it melts, you will have plastic and steel by that time.

[SixbySix]

I run the oxgyen output through a tank of water with radiant pipes then into the base.

[bobucles]

The amount of heat coming out of an electrolyzer really is not that much and is very workable, even after the numerous cooling nerfs. A handful of worts or busy ice machines will counteract the heat output.

The heat can be fed back into the input water if it's cool enough, as the water is much harder to heat up than the oxygen is to cool down.

Heat can be pumped into the hydrogen and then the hydrogen burned off, removing the heat from the map.

Hot O2 can go directly into exosuits, they don't care much about the temperature input.

Hot air can be pumped through an ice biome for hundreds of cycles of easy cooling. The AETN offers a permanent oxygen cooling solution and it's not a bad spot to use one.

The heat can also be left as is. Electrolyzer O2 heat isn't very heavy at ~45kDTUs, and will take dozens of cycles to put a dent in anything important.

[Sasza22]

Early game it`s not that much of an issue. Nothing a few wheezeworts(if available) or some ice fans can`t deal with. Later i tend to put my electrolizers in the ice biomes next to the AETN to use up the unneeded hydrogen. It keeps the oxygen nice and cool and with insulated pipes it`s possible to get your base colder than usual.

That`s at least what i`ve been doing before the launch preview.

[Majorchubby]

I got lucky and there is an AETN and ice biome right next to the start. I like to put mealwood plants next to the base to scale dups quickly and cooling down the O2 helps sustain that. So far its working great. Anyone have a link to a turbine/tuner setup? I want to play with this later as it seems all the rage.

[beowulf2010]

45 minutes ago, qda said:

I've never used a cold biome, but you can cycle oxygen through it for hundreds of cycles before it melts, you will have plastic and steel by that time.

I've successfully used cold biomes for cooling sieve water down to low enough temps to cool off overheated  ristle blossom farms so they'll definitely handle oxygen. The key is to get some liquid into it (dump it in or melt it, either way is fine) for the pipes to travel through. Makes the cooling happen way faster. 

[Lilalaunekuh]

If I reach later stages of the game (space materials, looking at you thermium and supercoolant) and am still in the mood to rework my oxygen production:

 

I love to build compact "modules", just water in and oxygen and power out.

The best methods to delete heat are the methods to delete mass.

=> Superheating my hydrogen to up to 1000°C gives me enough room to cool the outgoing oxygen.

[At least steel is required to build something like this.]

 

Some math:

Spoiler

• Oxygen got a SHC of 1,005 (DTU/g)/K
• Hydrogen got a SHC of 2,4 (DTU/g)/K

 

An insulated electrolyzer should result in an average gas temperature of 72-73°C.

=> Let´s say we need to cool our oxygen by 50K.

 

(50 K * 1,005 (DTU/g)/K * 888g) / (2,4 (DTU/g)/K * 112g) = 166K

=> If your goal is just self-cooling, you would only need to raise the temperature of the hydrogen you by 166K.

 

So if our hydrogen is released at ~73°C, the heated hydrogen would only be <240°C.

=> Even if you consider the additional heat generated by the hydrogen generator and the aquatuner, the system will still run under 250°C

 

=> If you got at least steel to work with you will be able to build a self-cooling module with just a water input and oxygen and power output.

(If you got supercoolant you will need less than 50W to move the heat generated by a full time running electrolyzer, the attached generator and the auqatuner itself.)

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