Random 5 kg Water Blobs Appearing in an Enclosed Space

[Meng.Meng]

Below is the icebox for my industry brick, and after the latest update occasionally there are 5 kg water blobs appearing out of nowhere. Where might the water come from? Thanks!

 

About the setup:

• All water blobs were exactly 5 kg, between -1 and 0 Celsius;
• The automation for the aquatuner was set to above 0 Celsius, so there shouldn't be any state changes for the polluted water;
• There were no warnings regarding pipe cracking;
• There were no water or ice in the icebox when I sealed it up;
• It ran perfectly for a few hundred cycles until the recent update.

[Craigjw]

Very strange.  I don't think that this will cause you any issue, as the box is only acting as a heat buffer.  The SHC & TC difference between water and PW is so small that it's negligible in your setup because you have a large amount of it.

On a different note, you have massive overkill with the tempshift plates and cooling pipes, a single tempshift plate made from igneous on each generator is all that's necessary, you can also just run a single pipe across each layer for cooling.  each petrol gen only produces 20KDTU's, which isn't that difficult to remove.  Something to thin about when you start getting lag from your pipe network.

[Red Shark]

I believe this is the "Sweating" or "Flaking" mechanic. Essentially, the tiles are getting hot enough that they can transition some 5kg part of the polluted water to steam, after which it condenses back into (now non-polluted) water.

The tell here is that it is exactly 5kg, as that is the increment that "Sweating" occurs at.

 

[psusi]

How does 0 degree water turn to steam?  And shouldn't it drop some dirt?

[KittenIsAGeek]

Check the temperature of the insulated tiles directly above the blobs.  If they're high enough temperature, there can be an event where the water will flash from 0 to steam in one tick, then condense back into water on the next tick.  As @Red Sharkstated, its likely tied to the 'sweating' or 'flaking' issue.

 

[nakomaru]

Flash boiling does not yield byproducts (dirt).

[Meng.Meng]

21 hours ago, Red Shark said:

I believe this is the "Sweating" or "Flaking" mechanic. Essentially, the tiles are getting hot enough that they can transition some 5kg part of the polluted water to steam, after which it condenses back into (now non-polluted) water.

The tell here is that it is exactly 5kg, as that is the increment that "Sweating" occurs at.

 

 

13 hours ago, KittenIsAGeek said:

Check the temperature of the insulated tiles directly above the blobs.  If they're high enough temperature, there can be an event where the water will flash from 0 to steam in one tick, then condense back into water on the next tick.  As @Red Sharkstated, its likely tied to the 'sweating' or 'flaking' issue.

 

Thank you very much! That is some weird mechanics. I guess I need to rip the icebox apart and double insulate it to satisfy my OCD...

[KittenIsAGeek]

1 hour ago, Meng.Meng said:

Thank you very much! That is some weird mechanics. I guess I need to rip the icebox apart and double insulate it to satisfy my OCD...

If you have a very large difference in temperatures, double-insulating is always a good idea.  The better the material used, the less of a problem it becomes.  There are situations where even "Insulation" insulated tiles will eventually warm up (or cool down).

Some factors that promote the heating of insulated tiles:

• The location on the building where it "contacts" the floor for thermal transfers.  For buildings that produce a lot of heat (such as aquatuners), this can be significant.
• Where a bridge (liquid, gas, electric) has one end in a hot area and the other end inside insulation.
• Where a tempshift plate in a hot region touches an insulated tile.

Looking at your hot room layout, your bridges and aquatuners are both contributing to the heating of the insulated tiles between the hot room and the cold room.  

Good luck with your design!

[nakomaru]

As indicated in the linked post too, you can place petroleum in your steam room, which will provide perfect insulation against your bottom tiles, unlike steam (to a limited ΔT, but you won't reach it here).