Why is this bronze-colored gas pipe broken?

[Shame]

I specifically requested for the gas to be cooled and maintain temperature. It even says this type of pipe keeps the temperature as is and the pipes themselves are hard to cool and heat, so what's the deal here? I made them out of Igneous Rock, and it's that bronze-colored pipe. Gold-colored pipes spread the temperature around outside of them, so they are useless to me for cooling specific rooms.

https://steamcommunity.com/sharedfiles/filedetails/?id=1886718808

Well, if this pipe can't withstand such cold temperatures then what pipe will? And also at the same time keep the cool temperature pretty much as is until it gets to its destination? Yeah, I am resultantly pumping through gas from 10C to as low as -32C, so what? I don't understand any of the numbers presented to me unless it is in grams/kg/tons or celsius and it just gets more confusing when I see a kdtu number or something arbitrary like that, which means nothing to me.

[mikek]

burst pipe is because the gas in it change to a liquid.

same goes for a liquid that becomes solid or the other way around.

also those pipes cant be connected input and output.
input has to go together and the output together.

[zverozvero]

You probably cought tiny clorine cloud. Clorine became liquid at -34C and broke output pipe immediately.
Any pipe will break from materials turning wrong state. If you want to be sure it wont happen again use gas filter or automation break with gas sensor on pipe.
Igneous is best nonmanufactured material for insulatet pipes and tiles. If it cant hold temperature, bake some ceramics in refinement Kiln.
Edit:
Mikek saw better than me - pipes dont go like that. Gas will freak out left and right and at best slow its movement trying to go backwards. Worst case it'll make through and cycle back into Regulator but i doubt it could cool O2 to -183C so it broke pipes.

[Hedning]

You should treat DTU as Joule. They probably renamed it so that electrical energy and thermal energy wouldn't have the same unit, which makes sense since in the game there is no correlation between them.

[Shame]

Originally posted by zverozvero:

You probably cought tiny clorine cloud. Clorine became liquid at -34C and broke output pipe immediately.
Any pipe will break from materials turning wrong state. If you want to be sure it wont happen again use gas filter or automation break with gas sensor on pipe.
Igneous is best nonmanufactured material for insulatet pipes and tiles. If it cant hold temperature, bake some ceramics in refinement Kiln.
Edit:
Mikek saw better than me - pipes dont go like that. Gas will freak out left and right and at best slow its movement trying to go backwards. Worst case it'll make through and cycle back into Regulator but i doubt it could cool O2 to -183C so it broke pipes.

Nope, never had a single piece of Chlorine inside the main colony area dug out at all yet.

Originally posted by mikek:

burst pipe is because the gas in it change to a liquid.

same goes for a liquid that becomes solid or the other way around.

also those pipes cant be connected input and output.
input has to go together and the output together.

Right, I thought I had the pipes connected correctly, but guess I overlooked that. I meant to have it so that all of them output to the same pipe, but can also work in sync to cool pipes to a lower temperature. Looks like I needed some gas shut-offs here, will need to rethink my setup for these, as it was not as simple as I somehow thought it would be.

Originally posted by Hedning:

You should treat DTU as Joule. They probably renamed it so that electrical energy and thermal energy wouldn't have the same unit, which makes sense since in the game there is no correlation between them.

I am not a science nerd, so I don't know what Joule implies, exactly. The pressure power? Not really relevant in this case, since all I am trying to do is cooling, but may be the pressure in the setup made the pipes break.

[Bokonon]

This is about the simplest definition of a joule I could fine, it's from Wikipedia:

"one watt equals one joule per second"

It's a unit for measuring energy, either force, electrical or heat.

The only reason a pipe takes damage is a change in state of whatever is being transmitted, gas to liquid, liquid to gas, liquid to solid or solid to liquid. Pressure cannot break pipes, the game will not let you put enough material into a pipe to over pressurize it.

[Xilo The Odd]

Originally posted by Bokonon:

This is about the simplest definition of a joule I could fine, it's from Wikipedia:

"one watt equals one joule per second"

It's a unit for measuring energy, either force, electrical or heat.

The only reason a pipe takes damage is a change in state of whatever is being transmitted, gas to liquid, liquid to gas, liquid to solid or solid to liquid. Pressure cannot break pipes, the game will not let you put enough material into a pipe to over pressurize it.

true but water based liquid is definently a force to be reckoned with.

keep in mind, most of these pipes are made from stone materials, they can handle most pressure but the state change from water to ice is a common way for large stone facings to fall apart. it'd be logical if a stone pipe with freezing water in it would also meet the same fate after a time.

and since time is accelerated vastly in ONI, the kind of damage we see does make some level of sense. basically, the pipe couldnt handle the change of matter state and broke.

another way to look at it is from the coding aspect, pipes can only handle fluid, ducts to gasses and conveyors for solids. so when a programmed object has something in it that its not setup to handle, your code is now broken by other parts of your code.

[CPT Chthonbeard the Pirate]

Originally posted by Hedning:

You should treat DTU as Joule. They probably renamed it so that electrical energy and thermal energy wouldn't have the same unit, which makes sense since in the game there is no correlation between them.

Actually, someone in the forums pointed out that 1 kDTU = 1 Joule. So 1,000 DTUs = 1 Joule.

[Hedning]

Originally posted by CPT Chthonbeard the Pirate:

Originally posted by Hedning:

You should treat DTU as Joule. They probably renamed it so that electrical energy and thermal energy wouldn't have the same unit, which makes sense since in the game there is no correlation between them.

Actually, someone in the forums pointed out that 1 kDTU = 1 Joule. So 1,000 DTUs = 1 Joule.

Liquid Tepidizer: 960W -> 4064 kDTU/s or about 4kDTU/J which is about 4 times what you said. You can think of it that way if you want, but there is no care in the game for conserving any form of energy, or adding heat relating to how much energy you put in (or extract), so you can't use it in calculations and expect any degree of accuracy.

[CPT Chthonbeard the Pirate]

Originally posted by Hedning:

Originally posted by CPT Chthonbeard the Pirate:

Actually, someone in the forums pointed out that 1 kDTU = 1 Joule. So 1,000 DTUs = 1 Joule.

Liquid Tepidizer: 960W -> 4064 kDTU/s or about 4kDTU/J which is about 4 times what you said. You can think of it that way if you want, but there is no care in the game for conserving any form of energy, or adding heat relating to how much energy you put in (or extract), so you can't use it in calculations and expect any degree of accuracy.

Ehh, it works when trying to convert heat to power with steam turbines. That's where I get it from.

[koimeiji]

Pipes and vents only take damage if the material inside them changes phases (ie; steam turns into water, or water turns into ice).

So, the only reason that pipe would have broken is because something in it changed phases. Not only that, but multiple things would have changed phases, as a single packet will not deal enough damage to break it fully (iirc).


As far as DTUs goes, it's a made up unit named after the BTU (British Thermal Unit).

DTUs are synonymous with joules.

So, the majority of heat descriptions (being in DTU per second) is the same as a joule per second, or a watt

All in all, it doesn't really matter for the average player. You can ignore the specifics and just know that a higher DTU/s output means it outputs more heat (or the vice versa with cooling).



So your problem, presumably, is that you're cooling a gas too much and it's turning to a liquid.
Oxygen turns to a liquid at roughly -180C. Now, I dunno for certain, but I get a feeling you're not cooling the oxygen enough to condense it.

So, there's probably other gases getting into your system.
The two most likely gases that are condensing are Chlorine (-34.6C) and CO2 (-48.15C)
Check for any possible ways that those two gases could be getting into your system.

[koimeiji]

If you do want to know what you'd use these numbers for


Q = c * m * dT
Q: Joules (aka DTUs)
c: Specific heat, (joules/grams)/°C (technically °K but they change at the same rate)
dT: Change in temperature in °C
Useful for finding how much °C something will change if you know how many joules (DTUs) will be added to it.


There's several calculations using thermal conductivity, but you're...probably never gonna use them unless you want to do some hardcore ingame engineering. Feel free to look at https://oxygennotincluded.gamepedia.com/Thermal_Conductivity if you really want to bother with it.