Petroleum Leak?

[Chogathmainop]

I recently started digging out a magma channel hoping to use the natural heat to produce steam and refine my crude oil. So far so good, but I find that some of the petrol has leaked through, and I'm not sure how.

On a side note, if I've made sure that the rock isn't harder than 900F, can the petrol still turn to sour gas? I've produced a few grams of the stuff, not sure how. Don't worry about the pink stuff, that's phosphorous.

https://steamcommunity.com/sharedfiles/filedetails/?id=2872784329

[cswiger]

You must have flashed some of the petrol to sour gas, which leaked outside the chamber and cooled down. If the temps are petrol safe, then a water-lock using petrol would work better.

Also note that digging out the magma channel reduces the heat it contains by 50%, so you lose that potential energy rather than being able to use it for power or whatever.

[Chogathmainop]

Originally posted by cswiger:

You must have flashed some of the petrol to sour gas, which leaked outside the chamber and cooled down. If the temps are petrol safe, then a water-lock using petrol would work better.

Also note that digging out the magma channel reduces the heat it contains by 50%, so you lose that potential energy rather than being able to use it for power or whatever.

I don't understand the first part of that - considering sour gas doesn't condense until it's supercold, I'm not sure what you mean.

As for the second part, fair point, but I'm only digging out the rock that's not hot enough to boil crude. Admittedly this means less steam power, but I kinda want to open up this particular part of the map - albeit slowly.

[cswiger]

Originally posted by Chogathmainop:

I don't understand the first part of that - considering sour gas doesn't condense until it's supercold, I'm not sure what you mean.

It was my best guess as to why you have petrol on the floor by the turbine.

"Flashing" is a game mechanic, used when small amounts of materials turn into gas. "Flaking" is the name for when small amounts of solids melt:

https://oxygennotincluded.fandom.com/wiki/Flaking

Check the Abyssalite temps, especially by the lower left corner.

[AlexMBrennan]

Have a look at the pipe overlay. You dumped the oil in there somehow and somehow some of it must have escaped.

I suspect that there is a pipe in contact with the super hot airlock door which caused the contents to overheat. Note: Airlock doors are provide no insulation whatsoever and probably should not be used here (or ever, really).

[Chogathmainop]

Originally posted by AlexMBrennan:

Have a look at the pipe overlay. You dumped the oil in there somehow and somehow some of it must have escaped.

I suspect that there is a pipe in contact with the super hot airlock door which caused the contents to overheat. Note: Airlock doors are provide no insulation whatsoever and probably should not be used here (or ever, really).

Are you talking about the pipe on the left hand side? That's empty - it doesn't connect to anything. The way I set this up was I dumped the crude oil in first, and then dug out the cooler material.

[gimmethegepgun]

Originally posted by Chogathmainop:

I don't understand the first part of that - considering sour gas doesn't condense until it's supercold, I'm not sure what you mean.

As cswiger stated, it's a mechanic known as flashing (as in, flashing to steam, or whatever). When a liquid or gas comes into contact with a solid surface that is beyond their state change temperature, it can instantly state change regardless of the thermal conductivity of the solid. This is mostly notable for abyssalite, which is normally a near-perfect insulator, but liquids and gases can rapidly exchange heat with them under certain circumstances.

[Chogathmainop]

Originally posted by gimmethegepgun:

As cswiger stated, it's a mechanic known as flashing (as in, flashing to steam, or whatever). When a liquid or gas comes into contact with a solid surface that is beyond their state change temperature, it can instantly state change regardless of the thermal conductivity of the solid. This is mostly notable for abyssalite, which is normally a near-perfect insulator, but liquids and gases can rapidly exchange heat with them under certain circumstances.

So because I'm turning the crude into petrol via exposing it to hot abyssalite, even though it's just hot enough to turn it into petrol, the game is set up in such a way that a marginal amount will still turn to sour gas when that particular method is used?

[AlexMBrennan]

As cswiger stated, it's a mechanic known as flashing (as in, flashing to steam, or whatever). When a liquid or gas comes into contact with a solid surface that is beyond their state change temperature, it can instantly state change regardless of the thermal conductivity of the solid.

cswiger suggested that sour gas produced by this process escaped the room (inevitable given that there is no proper airlock) and turned back into petroleum which is completely impossible: Sour gas can ONLY be turned into methane and sulfur. There is no way whatsoever to turn sour gas back into petroleum.

So because I'm turning the crude into petrol via exposing it to hot abyssalite, even though it's just hot enough to turn it into petrol, the game is set up in such a way that a marginal amount will still turn to sour gas when that particular method is used?

Well, no. Flaking is the process through which the abysallite which theoretically has a thermal conductivity of zero can rapidly boil liquids despite the fact that it should be a prefect insulator. However, this can only heat the liquid up to the temperature of the abysallite tiles.

If all the abysallite tiles are exactly 500C then there will be no sour gas; however, if there is one tile of abysallite that is hotter than 538C then this tile can turn the liquid that touches that tile into sour gas. This is likely because abysallite being a perfect insulator prevents touching abysallite tiles from averaging out their temperature.

[cswiger]

Originally posted by AlexMBrennan:

Well, no. Flaking is the process through which the abysallite which theoretically has a thermal conductivity of zero can rapidly boil liquids despite the fact that it should be a prefect insulator. However, this can only heat the liquid up to the temperature of the abysallite tiles.

Abysalite isn't a perfect insulator. It has a TC of 0.00001 (DTU/(m*s))/°C:

https://oxygennotincluded.fandom.com/wiki/Abyssalite

That TC is close enough to zero that the game sometimes displays it as zero.

[gimmethegepgun]

Originally posted by AlexMBrennan:

As cswiger stated, it's a mechanic known as flashing (as in, flashing to steam, or whatever). When a liquid or gas comes into contact with a solid surface that is beyond their state change temperature, it can instantly state change regardless of the thermal conductivity of the solid.

cswiger suggested that sour gas produced by this process escaped the room (inevitable given that there is no proper airlock) and turned back into petroleum which is completely impossible: Sour gas can ONLY be turned into methane and sulfur. There is no way whatsoever to turn sour gas back into petroleum.

I actually completely missed the part about the escaped petroleum. I was only talking about how the sour gas formed.

[倾怜一世容颜]

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