Mafic Vs. Igneous

[OxCD]

hi folks

Is the SHC value enough to make Mafic Rock "thermally reactive" ? Even with a TC half value of the most famous low cost insulation : Igneous Rock ?

As caustic biomes are limited now (more biomes types = less of pre-launch biomes = less of igneous) I was looking on a alternative for low cost insulation.

Any point of view ?

 

[nakomaru]

Thermally reactive only means it has a low SHC. It means it takes less energy to change temperatures, and doesn't have to do with conductivity.

Personally, I think they should remove these tags like insulator and replace them with "low/normal/high capacity" and "low/normal/high conductivity" for clarity.

If you are concerned about insulation, you can ignore Thermally Reactive. Mafic is twice as good as Igneous.

32 minutes ago, OxCD said:

I was looking on a alternative for low cost insulation.

For insulation, you can you use a single layer of ANY material insulated tile, as long as it is NOT touching gas along one side.

• Insulated/Normal Tile
• Insulated Sandstone/Thermium Metal Tile
• Insulated/Natural Tile
• Insulated/Liquid

And you will have 100% perfect forever insulation along that barrier up to 425K difference for sandstone insulation, and it just gets better from there.

[cblack]

Interesting.  Since all you should care about is TC for insulating materials, I would think Mafic should be better.  However, you can't build insulated pipe, or any pipe for that matter, with it.  But you can build insulated tile with it (with half the TC of insulated tile from igneous), and run piping through that, but that's inconvenient in some cases.

I wish you could use it for piping though, because it takes a looooong time to get enough ceramic for the things I want.

[metallichydra]

well, materials transfer heat faster if the difference between temperature is high.

[OxCD]

33 minutes ago, nakomaru said:

Personally, I think they should remove these tags like insulator and replace them with "low/normal/high capacity" and "low/normal/high conductivity" for clarity.

If you are concerned about insulation, you can ignore Thermally Reactive. Mafic is twice as good as Igneous.

Ok thanks, you help me to bolster my thoughts. Indeed we were thinking the same.

 

[axxionx12]

I just wish mafic rock could be used to make liquid pipes 

[Lilalaunekuh]

43 minutes ago, axxionx12 said:

I just wish mafic rock could be used to make liquid pipes 

Mafic rock can be used to make insulated gas pipes

[axxionx12]

3 hours ago, Lilalaunekuh said:

Mafic rock can be used to make insulated gas pipes

But muh liquids!

[OxCD]

7 hours ago, axxionx12 said:

I just wish mafic rock could be used to make liquid pipes 

Don't you think it sounds like a forgetting ? It's weird that you can insulate gas pipes, liquid pipes, and tiles with same elements, excepting Mafic, not for liquid... ?

[avc15]

12 hours ago, cblack said:

Interesting.  Since all you should care about is TC for insulating materials

This needs to be benchmarked.

So yes, mafic will transfer 3/4 less heat per delta T.

But with its low SHC it will also heat up more readily creating a much larger delta T.

The low SHC will oppose its low thermal conductivity. But I do still believe the low conductivity should win out.

 

[nakomaru]

At steady state, any SHC will reach the same equilibrium temperatures.

[cblack]

53 minutes ago, avc15 said:

But with its low SHC it will also heat up more readily creating a much larger delta T.

Say we have a hot (or cold) fluid, in normal pipe (we can't build from mafic), and we run that through insulated tile made of either mafic or igneous to prevent it from heating the area around it, which we'll say is some solid tile or gas.  We don't really care about the temperature of the insulated tile itself, we're just trying to prevent the fluid from heating the things near the insulated tile.

The calculations look something like this, assuming your lowest TC is the insulated tile and the pipe has a TC below the fluid's.  Also I'll use 't' for temperature, 'c' for thermal conductivity, and we'll assume it's some gas around the tile.  Finally, since I can't do subscript I'll use superscript instead.

• Fluid to pipe: abs(t^fluid - t^pipe) * c^pipe
• Pipe to insulated title: abs(t^pipe - t^tile) * c^tile
• Tile to gas: abs(t^tile - t^gas) * c^tile

So where does SHC come in?  Well, in heat transfer itself, it doesn't.  What it does affect is how quickly you will reach the equilibrium.  So it will be slower to reach the equilibrium (if TC were the same and only SHC varied), as it takes more total energy transfer to get there (assuming everything doesn't start at equilibrium temps), but once it's there it doesn't matter.

[avc15]

1 hour ago, nakomaru said:

At steady state, any SHC will reach the same equilibrium temperatures.

yep, that's right, of course.

[Mutineer]

I am confused. I always believe thermally reactive mean when substance heated up it changes to other substance.

[nakomaru]

11 minutes ago, Mutineer said:

I always believe thermally reactive mean when substance heated up it changes to other substance.

Nope! Just hover for the real meaning: low SHC.