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Liquid Mass Per Tile


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Hello,

Can someone explain to me what property determines a liquids mass per tile that is 100% full?  I ask because I finally got to making liquid hydrogen and oxygen, and noticed liquid oxygen's mass is half that of hydrogen or water.  Then I started looking around at other liquids like crude oil and noticed they fluctuate as well.  

Thank you,

 

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I found a similar post on the forum.

Each liquid has a natural density to them. For example water is 1000kg/tile, petroleum is 740kg/tile. This is referred to as Max Mass on the ONI Database. However, I've also noticed that liquid that stacks high enough creates higher pressure in the lower tiles. That seems to be the cause of tiles taking pressure damage. I'm wondering how is that pressure calculated if anyone here knows about it.

It's a hidden stat called density I believe, that also determines which layer a gas or liquid is on.

Also something to keep in mind, for every full layer of liquid, the layer below will have a bit more in it. E.g. if you have 4 tiles of water deep, the bottom tile will have 1.03 tons in it instead of 1 ton.

1 minute ago, Bobasour said:

I found a similar post on the forum.

Each liquid has a natural density to them. For example water is 1000kg/tile, petroleum is 740kg/tile. This is referred to as Max Mass on the ONI Database. However, I've also noticed that liquid that stacks high enough creates higher pressure in the lower tiles. That seems to be the cause of tiles taking pressure damage. I'm wondering how is that pressure calculated if anyone here knows about it.

My guess is each layer adds 10% more to the layer below, but I'm just going off of water.

Just now, Chthonicone said:

My guess is each layer adds 10% more to the layer below, but I'm just going off of water

10% seems a bit high from what I remember. Building a water tank of reasonable size doesn't seem to result in pressure much higher than 1000kg/tile. That's just from my memory. Could be wrong.

Just now, Bobasour said:

10% seems a bit high from what I remember. Building a water tank of reasonable size doesn't seem to result in pressure much higher than 1000kg/tile. That's just from my memory. Could be wrong.

You are correct, my fingers typed what they wanted, not what I told them to. I meant 1%.

Thank you both @Chthonicone and @Bobasour.  That Database is something I've been missing the entire time I've been playing, so thank you very much for pointing me to that!!!

The only reason I asked was because I was frustrated that LOX was half the mass, and I  made both containment rooms the same size, and both are made at the same rate, so I will never be 1:1 when it comes to flying my rockets :\  

No way I'm taking apart those rooms now, I guess it's just like everything else in the game and life, you learn from your mistakes.

7 minutes ago, Chthonicone said:

It's a hidden stat called density I believe, that also determines which layer a gas or liquid is on.

Also something to keep in mind, for every full layer of liquid, the layer below will have a bit more in it. E.g. if you have 4 tiles of water deep, the bottom tile will have 1.03 tons in it instead of 1 ton.

My guess is each layer adds 10% more to the layer below, but I'm just going off of water.

What bothers me is that I've had the same water pool in my base for about 3000 cycles, and it's overflowed multiple times until I automated the shutdown of sieves, desalinator, and shutoffs.  However, just the other day, it did pressure damage just one time, then never came back, and it's been at the level countless times.  It had me confused.

7 minutes ago, CipherLoco said:

However, just the other day, it did pressure damage just one time, then never came back, and it's been at the level countless times.

Sounds pretty strange. Did you make sure you didn't change any of the building materials?

9 minutes ago, Chthonicone said:

You are correct, my fingers typed what they wanted, not what I told them to. I meant 1%.

I had another odd occurrence where the top layer of my water tank gets overpressure even though there's only 1000kg/tile of water. After I removed some water from the tank, the water level went back up as if the water down below was pushing upwards.

2 minutes ago, Bobasour said:

Sounds pretty strange. Did you make sure you didn't change any of the building materials?

I had another odd occurrence where the top layer of my water tank gets overpressure even though there's only 1000kg/tile of water. After I removed some water from the tank, the water level went back up as if the water down below was pushing upwards.

Was this after a reload, or after not looking at it for a while? I think there might be a bug with off screen optimizations where the pressure gets set wrong.

23 minutes ago, Chthonicone said:

Was this after a reload, or after not looking at it for a while? I think there might be a bug with off screen optimizations where the pressure gets set wrong.

Probably after not looking at it for a while, since I hardly ever reload.  

2 minutes ago, CipherLoco said:

Probably after not looking at it for a while, since I hardly ever reload.  

I see similar weirdness in pressurize oil pockets. Might have 15kg in the top when I look at it, and suddenly it spreads itself out. Come back later I see it do the same thing again.

51 minutes ago, CipherLoco said:

What bothers me is that I've had the same water pool in my base for about 3000 cycles, and it's overflowed multiple times until I automated the shutdown of sieves, desalinator, and shutoffs.  However, just the other day, it did pressure damage just one time, then never came back, and it's been at the level countless times.  It had me confused.

The liquid physics in ONI can be somewhat unstable and ends up with localized high pressure sometimes.

It's most noticeable with e.g. overpressurized crude oil storage, where it'll happen even at 1x and onscreen.

20 minutes ago, TLW said:

The liquid physics in ONI can be somewhat unstable and ends up with localized high pressure sometimes.

It's most noticeable with e.g. overpressurized crude oil storage, where it'll happen even at 1x and onscreen.

Not saying I doubt you, in fact I can believe it, but I've never seen it happen on screen yet. However, it's pretty consistent if I look away for about 10 minutes and then go look at the oil reservoirs that are pressurized.

1 hour ago, Bobasour said:

After I removed some water from the tank, the water level went back up as if the water down below was pushing upwards.

I should correct myself. This is actually normal behavior. After the top layer is removed, the tiles below no longer has as much pressure as before, so they will transfer some mass back to the top. I don't know what triggered the initial overpressurization though.

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