Pipes breaking

[Bryan]

I have insulated pipes breaking and I do not know why. The pressure is within limits and it is being vented. There is no sign that the said pipe is under stress in my tablet. The only thing I can see is that the Co2 in the pipe is freezing, but I don't know how to combat that. It is gas that is being vented out of my furnace and out an exhaust (cowl). It goes Furnace>pipe>valve>pipe x 2> valve> one way valve > cowl. The valves are all open.

[Ava]

I assume thats due to gas condensating in the pipe. My pipes are currently doing that cause of this on Europa - looking for ways to combat this.

[Seeedaum]

Originally posted by Bryan:

I have insulated pipes breaking and I do not know why. The pressure is within limits and it is being vented. There is no sign that the said pipe is under stress in my tablet. The only thing I can see is that the Co2 in the pipe is freezing, but I don't know how to combat that. It is gas that is being vented out of my furnace and out an exhaust (cowl). It goes Furnace>pipe>valve>pipe x 2> valve> one way valve > cowl. The valves are all open.

I'm on the same page with ava, I think you get condensation and that breaks your pipes.

Originally posted by Ava:

I assume thats due to gas condensating in the pipe. My pipes are currently doing that cause of this on Europa - looking for ways to combat this.

you will need to add condensation and expansion valves to get around it.

[evilshroud]

Continuing Seeedaum's post, any time you think you have enough condensation/expansion valves, double it, then continue assuming you don't have enough (you can ask my several burst pipes, only took me 5 tries to get enough)

[DrLamp]

If CO2 is freezing in the pipes then you either need to pump the pipes out faster, or install a pipe heater just to keep the contents from freezing long enough to get rid of them.

[Nargon]

Any ice in the pipe = bad
Best is use only one valve. Furnace>pipe>valve>pipe x 4> cowl.
If the valve is closed, then the furnace can works. Else the pipe can exchange own gas with world atmosphere and after some time, in the pipe is the same gas as in atmosphere.

[Bryan]

Thanks for the info folks! Is there any way to prevent world atmosphere from getting into my pipes when trying to vent my furnace? Or what is the efficient way to dump the furnace?

[Thiesen]

Lol... I have condensation in my pipes too... I am just beginning to tinker with atmospherics... I have 7 big insulated tanks in my creative sandbox and the N2O from the nitrice gives my pipes a real headache and stresses them out... no other gas do...

It feels I am babysitting the pipes more than actually building thing...

It seems that the N2O doesn't want to be contained at all... :-)

[Yascherrica]

Originally posted by Bryan:

Thanks for the info folks! Is there any way to prevent world atmosphere from getting into my pipes when trying to vent my furnace? Or what is the efficient way to dump the furnace?

Just add a volume pump. Add a 1 way valve before the cowl if you have a complex system

[Nargon]

Different gases/liquids have different temperatures at which they freeze or turn into a gas/liquid. Some gas is ok at -150°C. Some gas will be liquid at -150°C, that is bad for gas pipe, but ok for liquid pipe. Some gas will be frozen at -150°C, that is very bad for all pipes! Use the stationpedia to see the important temperature points for gases.

For dumping the furnace is important to vent all the gas out. You can use insulated pipes that do not lose heat, but the furnace cannot be insulated. Even a furnace inside a solid block loses heat by radiation. So use any active "pump" (volume pump, backpressure regulator, filtration...) and remove all gases from the furnace and pipe. A completely empty pipe is safe.

[Thiesen]

Originally posted by Nargon:

Different gases/liquids have different temperatures at which they freeze or turn into a gas/liquid. Some gas is ok at -150°C. Some gas will be liquid at -150°C, that is bad for gas pipe, but ok for liquid pipe. Some gas will be frozen at -150°C, that is very bad for all pipes! Use the stationpedia to see the important temperature points for gases.

For dumping the furnace is important to vent all the gas out. You can use insulated pipes that do not lose heat, but the furnace cannot be insulated. Even a furnace inside a solid block loses heat by radiation. So use any active "pump" (volume pump, backpressure regulator, filtration...) and remove all gases from the furnace and pipe. A completely empty pipe is safe.

then my N20 is really weird... it turns into liquid at like -7 degrees and keep being a liquid even at 27 degrees C

[powerkek]

It's the combination of temperature and pressure. Stationpedia (F1 key) has graphs for each element where you can look at temperature X and pressure Y. Above the line it's a gas, below the line it's a liquid. Left of the vertical blue line it becomes ice.

As a general rule for all elements, you can maintain temps above 370C to keep everything gaseous. But N2O specifically is way easier to handle if you keep the pressure low, 1Mpa at +20C, 0.8Mpa at -20C, below that it just freezes anyway.

[Thiesen]

Originally posted by powerkek:

It's the combination of temperature and pressure. Stationpedia (F1 key) has graphs for each element where you can look at temperature X and pressure Y. Above the line it's a gas, below the line it's a liquid. Left of the vertical blue line it becomes ice.

As a general rule for all elements, you can maintain temps above 370C to keep everything gaseous. But N2O specifically is way easier to handle if you keep the pressure low, 1Mpa at +20C, 0.8Mpa at -20C, below that it just freezes anyway.

lol... and here I thought I was going to contain lots of it... :-)

I better not filter it at all then and just expell it back into the thin atmostphere of Mars... :-)

[powerkek]

Originally posted by Thiesen:

lol... and here I thought I was going to contain lots of it... :-)

I better not filter it at all then and just expell it back into the thin atmostphere of Mars... :-)

You can store it as a liquid, it's a lot more space efficient too. Of course you'd have to turn it back into a gas in order to use it, and do it carefully.