Cell phase transition does not occur only by heat exchange with debris

[kbn]

Until now, I believed that the phase transition of the cell was triggered by the temperature change.
However, the temperature change due to heat exchange with debris does not seem to trigger the phase transition.

 

 

I thought this could be used for some mechanism of heating/cooling that uses the difference of SHC, but unfortunately I have no concrete idea, so I will only share the phenomenon.
Maybe it's a clue to what smart people think.
(By the way, I treat this as if it was a new discovery, but was it actually a physical law that had already been discovered? Sorry if that was the case)

 

PS: I posted it on the bug tracker just in case.
But to be honest, I don't know if this is really a bug.

 

[bobe17]

i saw this when i did some test for the glass forge. precision : insulated tiles here are made of insulation (= no heat transfer at all).

It could be hard to monitore the temperature as the temperature sensor would transfer heat with the liquid.

[kbn]

25 minutes ago, bobe17 said:

i saw this when i did some test for the glass forge. precision : insulated tiles here are made of insulation (= no heat transfer at all).

Yes, that was exactly what I thought the temperature change would trigger the phase transition.

All liquids, including liquid glass, appeared to undergo a phase transition when changing from their current temperature.
Therefore, you can keep the liquid state by using a 1/10 volume trick of the pipe to change it to a temperature below the freezing point and then dropping it to a place where heat exchange does not occur, such as an insulating material.
Furthermore, if you keep the liquid temperature the same, you can even temporarily build a liquid lock with magma and water.

Spoiler

However, a phase change occurs as soon as the temperature changes even a little. (Or phase transition will occur even if you save and load)
Therefore, I thought that the temperature change of the cell was the trigger of the phase transition.
Nonetheless, the temperature change due to debris did not cause a phase transition.
 

[Nebbie]

Oooh, Klei must've not put the triggers for phase change on checking the element itself, but in the actual heat transfer code sections, plus loading, thinking they had every case covered...that is a bit sloppy.

I'm sure there's a way to exploit this with phase SHC differences.

[Zarquan]

I remember trying to build a liquid oxygen machine that cooled polluted dirt to below the condensation point of oxygen.  (The theory was that it took less cooling as polluted dirt has a lower SHC).  I remember having a problem with the polluted oxygen not liquefying in some situations.  My solution was to add pipes. 

Anyway, my point is I think it applies to offgassing too.

10 hours ago, Nebbie said:

Oooh, Klei must've not put the triggers for phase change on checking the element itself, but in the actual heat transfer code sections, plus loading, thinking they had every case covered...that is a bit sloppy.

I'm sure there's a way to exploit this with phase SHC differences.

This would be tricky to exploit.  The issue is that I believe any building would cause the condensation to happen.

[kbn]

On 8/6/2020 at 2:52 PM, Zarquan said:

This would be tricky to exploit.

Yes, I think so too.
I thought about it variously, but it might be difficult to exploit this to make a powerful device.

 

By the way, I've been playing around with this phenomenon and I've created something a little interesting, so I'd like to share it here.
Take a look at this.

Spoiler

Please look carefully. This is not Puft. This is Pacu.
Yes, I succeeded in flying Pacu.
It seems that Sky fish was in the world of ONI.
 

...Yes, this is a trick.
The mechanism of this trick is the Aerial waterway made by arranging a single liquid cell.

Spoiler

 

Let's take water as an example.
Prepare a water cell above 102.4°C or below -3.6°C, which should have undergone a phase transition.
When you drop this, if there is a tile diagonally below it, it will stop there. (If it is normal water, it will become water drops there)

Spoiler

Utilizing this phenomenon, we built an invisible Aerial waterway by stacking individual cells of liquid in small, inconspicuous quantities.

The heat exchange of the swimming Pacu seems to be the same as that of debris, so no phase transition occurs and the Aerial waterway does not break.

 

Molten Glass is the most suitable liquid for the Aerial waterway.
The minimum mass of liquid that a pacu can swim in depends on the type of liquid.
Because of the trick, I needed a liquid that Pacu could swim in invisible amounts.
And the following four liquids were suitable.

• Molten Glass: Can swim above 70kg
• Liquid Sulfur: Can swim above 67kg
• Molten Salt: Can swim above 67kg
• Liquid Tungsten: Can swim above 70kg

Of these, Molten Glass is the easiest to get.

 

Also, if you want to do it, you can also feed Pacu with Fish Feeder. (The lower arm does not exchange heat)
However, if you do this, it will be wise not to do this, as the Polluted Oxygen from the Polluted Dirt discharged by Pacu will break the Aerial waterway.

Spoiler

Ah, of course, even if you save & load the game, a phase transition will occur and the Aerial waterway will collapse.
The life of Sky fish is very ephemeral.

 

Finally, this is possible in survival mode. For example, the following method can be used.

Spoiler

 

[mathmanican]

8 minutes ago, kbn said:

we built an invisible Aerial waterway

Brilliant!  I've played with liquid mechanics so much, but never knew that diagonal beads down to the side will stop the flow of liquid.  I know what will happen when liquids get next to each other in bead form (the one on the right will swap to drip form).  This was just brilliant!  Thanks for the find. 

[kbn]

I forgot that I had one additional piece of information.

The liquid at the temperature where the phase transition occurs forms a waterfall or beads as it falls from the floor.

Spoiler

 

10 hours ago, mathmanican said:

the one on the right will swap to drip form

Yes, I think that is the correct behavior for normal liquids.
This is my guess, but the liquid at the temperature where the phase transition occurs seems to have the property of refusing the dripping process.
It seems that the result is that it gets stuck on a diagonal tile and stops, or it becomes a waterfall or beads directly.

 

As another example, dropping a heavy liquid on top of a light liquid causes it to splatter violently, resulting in many drops.
However, if you try this with a liquid at the temperature where the phase transition occurs, it will splatter violently, but none of it will drip. (So you can't hear the sound effects of the water flow)

Spoiler

 

Well, I'm not sure if this information can do anything, but I hope it helps.