LOX build doesn't work help please

[Denisetwin]

So, I've never successfully built a LOX, tried this time around using @Saturnus "compact" build from the end of this thread: 

This is my build:  So, I'm missing something, the petro can get down to about -49 but that's not nearly enough for LOX.  What am I missing?  I realize I could add some thermoregulators, but that wasn't in the original build and I'm trying to be conservative on energy use:

Here is my screen: 

 

[Kasuha]

6 minutes ago, Denisetwin said:

petro can get down to about -49 but that's not nearly enough for LOX.

You need to make at least some LOX with cold hydrogen. Once you got a few tiles of it, you can cool that LOX and freeze more LOX with it. There's no other suitable liquid - closest is liquid natural gas but it's not cold enough.

By the way if you want relatively small and simple liquid oxygen maker, check this post:

At the very least, it could help you make your first batch of liquid oxygen for more mass production.

[Luminite2]

45 minutes ago, Denisetwin said:

So, I've never successfully built a LOX, tried this time around using @Saturnus "compact" build from the end of this thread: 

This is my build:  So, I'm missing something, the petro can get down to about -49 but that's not nearly enough for LOX.  What am I missing?  I realize I could add some thermoregulators, but that wasn't in the original build and I'm trying to be conservative on energy use:

Here is my screen: 

 

The thread you reference was made back when crude oil had no freezing point, so you could get it cold enough for LOX. That has changed.

[Denisetwin]

42 minutes ago, Kasuha said:

You need to make at least some LOX with cold hydrogen. Once you got a few tiles of it, you can cool that LOX and freeze more LOX with it. There's no other suitable liquid - closest is liquid natural gas but it's not cold enough.

By the way if you want relatively small and simple liquid oxygen maker, check this post:

At the very least, it could help you make your first batch of liquid oxygen for more mass production.

This is the one I built in my last game and never did get any LOX out of it.  If I had to guess at this point what the issue was, I think there was too much PH20 in the original build and so it never would cool down enough with just the hydrogen pipes.  After nearly 100 cycles and rebuilding the piping around the thermoregulator to loop it I got the hydrogen down to -170 or so, but never did get the PH20 down to less than -160 and then ranching update came out and I abandoned that save.  I will try again.  Maybe if I made the main chamber a vacuum first, brought the hydrogen down to temp and then filled the chamber it would work?  Any pointers you could give on best material for pipes?  or any other hints?

43 minutes ago, Kasuha said:

You need to make at least some LOX with cold hydrogen. Once you got a few tiles of it, you can cool that LOX and freeze more LOX with it.

oh wait, are you saying need to replace the petro with LOX in the borg cube?

[Kasuha]

13 minutes ago, Denisetwin said:

oh wait, are you saying need to replace the petro with LOX in the borg cube?

Exactly.

Personally I wouldn't even use borg cube. That heat you remove from the LOX can be used to heat up the resulting oxygen to nearly the original temperature of the polluted oxygen that came into the reaction. So you can cool the aquatuner with the produced liquid oxygen to turn it into oxygen and warm it up. I have a design on mind, I'll try to put it together in debug mode...

 

[Kasuha]

23 minutes ago, Kasuha said:

I'll try to put it together in debug mode...

So the idea is approximately like this:

The left chamber is liqueficator, it has a layer of liquid oxygen at the bottom. Polluted oxygen is sent in, it cools down by exchanging heat with outgoing oxygen and when touching the liquid oxygen layer. The pump is always on, the temp sensor opens shutoff towards aquatuner, the hydro sensor opens shutoff towards the vent in the evaporator. The aquatuner is in water bath, that provides it thermal inertia, and it heats up the outgoing oxygen.

Pipes and tiles are assumed abyssalite, and I think the middle wall (that I made of normal tiles for this picture) should even be made of abyssalite insulated tiles to stop heat exchange even with tempshift plates.

Priming consists of first filling the left chamber with enough liquid oxygen (~200 kg might suffice?) and then with cooling the aquatuner until the liquid oxygen pool reaches nominal level and amount of outgoing oxygen equals amount of incoming oxygen - then the heat should be equal too.

[cpy]

Why would anyone need LOX machine?

[Luminite2]

31 minutes ago, cpy said:

Why would anyone need LOX machine?

Polluted oxygen liquefies into normal oxygen, kind of like how polluted water vaporizes into normal water (steam). So, it could be useful to anyone with a lot of polluted oxygen (such as from vents or offgassing polluted water) who wants to purify it (to guard against Slimelung for example) without using deoderizers, which require sand and only yield 90% of the input polluted oxygen as clean output.

I haven't had a game where I've found this necessary, but one can imagine a situation where it is at least somewhat useful.

[Yoma_Nosme]

@Denisetwin

Hey mate! You can keep your lox machinery! Just add a conventional lox maker(hydrogen with thermo regulator) to produce liquid o2 then pump the l-o2 inside the chamber where your petroleum is( but first pump out the petro and create vacuum )

You can use the Borg cube of yours with the l-o2 to condensate p-o2 to oxygen.  

I hope you can follow. Sry wrote in a hurry.

If anything is unclear I'll try to elaborate

Cheers

Edit. After the Borg cube is filled with l-o2 you won't need the "conventional lox maker" anymore

[suicide commando]

Here's a link to a post on reddit I made about the lOX maker I built recently, it should work nicely for you as well especially if you pump in regular temp pO2 instead of the 500 degree stuff I am pushing into this thing.

 

[Denisetwin]

On 4/14/2018 at 2:46 AM, cpy said:

Why would anyone need LOX machine?

PH20 turns into clean, COLD clean oxygen,if you keep icy oxygen flowing into your base, there is rarely an issue with heat.  I usually like to keep a granite statue next to vents as a cold sink at least until everyone starts complaining about the cold.....

[Lifegrow]

3 hours ago, Denisetwin said:

PH20 turns into clean, COLD clean oxygen,if you keep icy oxygen flowing into your base, there is rarely an issue with heat.  I usually like to keep a granite statue next to vents as a cold sink at least until everyone starts complaining about the cold.....

You're swiftly becoming a bit of a pro - got my eye on you