what electrolyzer setup you use for late game , please share some energy efficient way to seperate O2 and H2

[abhiraz]

thats it

[Smife]

Does it have to be power efficient late game? 

[nakomaru]

Purists hate this one simple trick. REAL 0 Joules gas separation. 100% uptime. No pressure limits. Find out how.

(btw, the right column of airflow is unnecessary)

[Mastermindx]

8 hours ago, Smife said:

Does it have to be power efficient late game? 

Yeah... that's my thought too.  In my latest game, I'm overproducing about 2000 kj each cycle from solar and steam alone. (I DO burn like 1000 ish kj of hydrogen generator... But that's because otherwise, my hydrogen storage backs up and my electrolyzer stop producing.) So I'm always looking for ways to burn more electricity.

I think my nat gas generator did not run in the last 100 cycle.

I understand the engineering challenge appeal though.

[Nebbie]

3 hours ago, nakomaru said:

Purists hate this one simple trick. REAL 0 Joules gas separation. 100% uptime. No pressure limits. Find out how.

Spoiler

 

Really not a fan of some of the sloppiness in how this game handles outputting things; the electrolyzer really should directly output hydrogen in the one tile where the vent looks to be, and oxygen in any adjacent tile at or below, and be stopped from working if either is completely blocked.
Also what really triggers me is you've got the hydrogen below.

[degr]

I just allow it to reach roof of my base, and then collect it. Very efficient.

[Steve8]

7 hours ago, Nebbie said:

Really not a fan of some of the sloppiness in how this game handles outputting things

The really annoying exploit with this is that it ignores overpressure limits. Infinite storage really shouldn't be a thing. When magically teleporting gasses around the game doesn't check the air pressure in the target tile. Probably for optimization reasons as it would have to check the pressure in several possible destinations.

I wouldn't mind just separating gasses that way. But I won't use it because it results in infinite pressure.

For the electrolyzers I just use a one tile gas lock. It's not 100% reliable as the hydrogen can build up and get into the oxygen pumps if you don't burn it off, but that can easily be taken into consideration. But you will certainly never get oxygen in the hydrogen line.

[mathmanican]

@abhiraz, if you want more builds, you can find a good 20+ using this search string. 

• https://www.google.com/search?q=site%3Aforums.kleientertainment.com+electrolyzer+build

The key point here is that by including "site:forums.kleientertainment.com" as part of your search string, you can search exclusively on the Klei forums. If you only want posts that have been made since launch, then use the search tools to limit the time range.

[Gurgel]

3 hours ago, degr said:

I just allow it to reach roof of my base, and then collect it. Very efficient.

I do the same. You do not even need filters for the H2, just place an element sensor 4-5 tiles below the pump and add a filter gate set to 100 sec or so. 

There is also my old Anti-Spom, which needs so be built in space. To use the O2, simply place some pumps below the electrolyzers:

 

[Nebbie]

2 hours ago, Steve8 said:

The really annoying exploit with this is that it ignores overpressure limits. Infinite storage really shouldn't be a thing. When magically teleporting gasses around the game doesn't check the air pressure in the target tile. Probably for optimization reasons as it would have to check the pressure in several possible destinations.

...

That's what I mean: It should say "wait a minute, there's liquid over my vent, I'm blocked!", leading to having to remove that bit of petroleum, which then means it can detect the gas pressure is too high, and no longer be able to output. It's quite fine in my view that you can limit where gases are output with clever tile placement to separate them, but what's not so fine is this ability to ignore pressure limits by blocking the actual vent.

[bobe17]

Alternative without liquid all over the electrolyzer, using bypass pumps:

top atmo sensors set to "above 1000g"

bottom atmo sensors set to "above 1g"

liquid valves set to "0.1g/s"

The notifier on the right never got triggered. Uptime > 99%

We can't see on the picture but the vents on the left are both linked to the bridge input.

Fine if you just need one electrolyzer.

liquid-gas bypass pump explained by mathmanican:

 

[Cipupec2]

So far I mostly used the same electrolyzer setup for early, mid and late game, only improving/upgrading the modules around i.e. expanding the setup for larger population, adding air cooling module, adding large buffers, turning coal generators into emergency generators for the electrolyzer, adding logic to hydro to play as backup power generators, adding Notifeir for alerts etc..

 

[impyre]

The gas pumps are far more power efficient when pumping only a single gas, thus it's best to separate them before pumping if possible. And since hydrogen is light and oxygen is heavy, it's luckily pretty easy to do this without resorting to teleporting gas packets with mechanical filters; however, using the physical teleporting gas filters offers up huge space savings, the convenience of not having to run at higher levels of atmosphere, and built-in unlimited gas storage (for certain builds), meaning maximum electrolyzer up-time. Depending on playstyle, figure out what gives you the warm fuzzies and do that lol.

[Cipupec2]

1 hour ago, impyre said:

since hydrogen is light and oxygen is heavy, it's luckily pretty easy to do this without resorting to teleporting gas packets with mechanical filters

True, but it requires more logic to iron out all edge cases and it can be capricious if you need to come up with a compact build.. so one more pro for the mechanical option 

 

Btw, here is my current build using mechanical:

Electrolizer + emergency power: The electrolizer mechanical serpation part takes awhile to setup, but everything else I add/upgrade as needed and resources permit. The coal power was used to jump start this and provide early power, now its turned to emergency power that only feed the electrolizer setup (so if I **** up during upgrades life support don't have to compete with rest of net)

Spoiler

My air/hydro buffers: Added as resources permit to provide another layer of safety against dormancy etc, this also allows to use automation to determine how much of hydro/nat gas I have

Spoiler

Air cooling for base: only cools what goes to the vents, not the atmo suits.

Spoiler

Hydro power generation, used to generate power, currently used to support nat gas power generation

Spoiler

Each section does one thing, so its easy to expand\upgrade

 

 

 

[avc15]

Now take nakomaru's system and give it a natural vented output for O2 into your base, then only the H2 needs to be pumped. Water cool in place. That's the ultimate efficiency level.

- Does power efficiency matter late game? Yes it still matters. Your base will survive a crisis better when you use simpler systems.

On 7/30/2020 at 6:19 AM, degr said:

I just allow it to reach roof of my base, and then collect it. Very efficient.

This is fine but, letting the hydrogen out directly means 30% more load on your space coolers. In this shot you're making liquid H2 so It's totally break even, but in an early game base, reducing cooling load by a fourth makes a big difference.

[degr]

11 hours ago, avc15 said:

but in an early game base, reducing cooling load by a fourth makes a big difference.

Did not feel any problems with this on Aridia and Volcanea asteroids

[ImpalerWrG]

Personally I just use mods that make Electrolizers outputs piped.  A real electrolysis process inherently separates the two gasses at the anode and cathode so it never made any sense why they just release both into the environment, it seems more like a sloppy design artifact then anything.

[impyre]

I use piped outputs also, for the same reason. @Cipupec2 why are you using the thermo-regulators instead of an aquatuner setup? You get way more cooling per KJ with the aquatuner, and the liquid also makes for a very steady gas temperature. Didn't want to fiddle with a heat-exchanger?

[avc15]

16 hours ago, degr said:

Did not feel any problems with this on Aridia and Volcanea asteroids

That's fine, and you're right, it's not exactly a burden. But, context -  OP is asking about most efficient setups. 30% more cooling, 30% more fuel. It's not the most efficient setup.

Some alternatives are to dump the H2 into an infinite storage (nakomaru's post), or to actually heat it and then burn for electricity, for cooling (let me see.....), or also to use the difference in heat capacity between water & gases to get free cooling.

 

I wrote some more stuff about this but it's not quite on the point of the topic either. Basically you can also delete a bunch of heat at the same time if you're willing to do a bit of engineering. And that build isn't about efficient gas separation (in fact, it's a bad example for gas separation)

[degr]

Pretty nice post about heat hydrogen before send it to generators and etc. Only I did not get why you use A/T + petrolium for LOX and LH generation.

Spoiler

Here you can see thermium AT + 20kg of water + supercoolant inside of pipe. In this setup steam turbine work on 100% power (you may use 2 turbines, and get 550 from each, 1200 for tuner, -100 totally. Water will be always cooled by steam turbine, and you will never got overheat issues. If you use steel, need more water, around 40 kg, but turbines will not work so good.

 

[avc15]

1 hour ago, degr said:

Pretty nice post about heat hydrogen before send it to generators and etc. Only I did not get why you use A/T + petrolium for LOX and LH generation.

 

I know this isn't the norm, but it's my preferred way to remove massive amounts of heat from my colony: superheat some gas and vent it to space. There are disadvantages compared to a steam turbine, probably the most obvious ones being that you throw away some power and some mass. But the biggest advantage is that you can fit a huge amount of cooling into a tiny space, once you get high tech materials - by heating your exhaust up to the operating temp for thermium A/Ts. You'd never operate a steam turbine at 1000C to get more cooling out of it - that'd take more power to cool than the power it produces.

When you're ready to bump your hot tank up to those kinds of temps just put some lead in there and let the petroleum boil off as sour gas.

Basically this cooler doesn't get more complex, it can handle the heat input from however many A/Ts you can fit in the hot tank, all running supercoolant loops at 100% load. No need to tack on more and more steam turbines as your cooling load grows. It does throw mass away, but at that kind of exhaust temp, we're talking about a fraction of what one geyser makes.

It's a different topic. It's the non-exploit mode and somewhat-realistic version of the chill pill. No matter how much cooling you need from it, it doesn't get any more complex. Build it once and you'd be hard pressed to ever use all the cooling it can give you.

[Cipupec2]

On 8/2/2020 at 4:56 PM, impyre said:

@Cipupec2 why are you using the thermo-regulators instead of an aquatuner setup? You get way more cooling per KJ with the aquatuner, and the liquid also makes for a very steady gas temperature. Didn't want to fiddle with a heat-exchanger?

True, aquatuner are more efficient and pool will give a more stable temp, but in this case it's simply not sexy looking as the thermo one. 

[KittenIsAGeek]

 

Spoiler

Note, use water, not PW, or you'll get an air bubble underneath that will cause flow control problems in your cooling loop...

 

Spoiler

Cooling is done by pipes, rather than free-flow like the first one.

 

 

Spoiler

Who needs cooling?

 

Spoiler

Oh, wait.. you said Electrolyzers.  My bad.

 

Spoiler

Guaranteed 1000g/s of oxygen, cooled to a nice comfortable 22c.  Or it would be. If my aquatuner off-screen were running.  But I turned it off a while back and never turned it back on and 

it hasn't been an issue.

Just some examples of old and more recent electrolyzer builds.  The first two were back when I still cared about making everything look neat.

[impyre]

16 hours ago, Cipupec2 said:

True, aquatuner are more efficient and pool will give a more stable temp, but in this case it's simply not sexy looking as the thermo one. 

Lol, that's fair. I sometimes use thermoregulators when I just need a little bit of cooling and can't be bothered with the other mess, it's much simpler to set up.

[Ochsler]

Here is my LO2 + LH2 production, direct cooled with aquatuner for petroleum boiling:

Its a bit messy but works great.

No energy waste for gas pumps.