Joe Dee Posted January 9, 2023 Share Posted January 9, 2023 I built this volcano tamer that I was pretty proud of because it doesn't require any steel except for a single automation wire on the mech. airlock. (And optionally for putting the autosweeper inside the steam chamber as in the screenshot, though it can be built without.) And it can cool the magma to 110°C with a self-cooled turbine. So I thought that was pretty neat. However, heat is draining from my magma tank somehow, and I can't figure out where it goes. The insulated tiles aren't heating up, and the abyssalite isn't either. The mech. airlock is cooling by 0.1°C every few seconds even though the mesh tiles are empty (vacuum), and they're not heating up anyway. The hydrogen in the cooling loop isn't heating up either after passing through the petroleum bath. But the cooling airlock is draining heat from the magma, which will probably solidify if I don't fix this. But where is the heat going? I can't see it... there are no bridges that could conduct heat, only a single steel automation wire connected to the airlock. Outside of the insulated tiles (that aren't heating up) I don't see where the heat could go. Link to comment Share on other sites More sharing options...
JRup Posted January 9, 2023 Share Posted January 9, 2023 Some more overlays would help, any kind of bridges are known culprits of heat transfer as well as bulky automation. If you're referring to the magma that's on top of the abyssalite, that will heat up until it's close to magma temperatures, albeit very slowly. And if you're talking about the magma on the insulation tile, then it will also heat up; very slowly as well. Link to comment Share on other sites More sharing options...
asurendra Posted January 10, 2023 Share Posted January 10, 2023 Could you show us full build? Maybe something on the other side? Also as JRup said, other overlays will help a lot Link to comment Share on other sites More sharing options...
Joe Dee Posted January 10, 2023 Author Share Posted January 10, 2023 17 hours ago, JRup said: Some more overlays would help, any kind of bridges are known culprits of heat transfer as well as bulky automation. If you're referring to the magma that's on top of the abyssalite, that will heat up until it's close to magma temperatures, albeit very slowly. And if you're talking about the magma on the insulation tile, then it will also heat up; very slowly as well. There are no bridges in the vicinity (and the one in the hydrogen loop wasn't heating up). I was talking about the magma next to the mech. airlock getting cooled by the airlock. However as it turned out, the problem was absolutely the abyssalite and the insulated tiles below and above the airlock itself soaking up heat far more quickly than I thought possible, I don't know why I overlooked that, must've been too inconceivable. So I fixed it with airflow tiles below, and another airlock above, because airflow tiles above the airlock also heated up even though the ones below stay cold (??). Sometimes I really don't get the ONI heat physics. Anyway if you're still interested here are the other overlays, all fairly simple: Automation isn't finished yet, instead of the fixed timer I plan to cycle everything and squeeze in a fresh 90 kg load of magma when the turbine exhaust drops low enough, still figuring out what a good threshold will be for that. With a 450 second timer it stays between 99.3 and 99.6°C so a little warmer should still be fine. Link to comment Share on other sites More sharing options...
Gurgel Posted January 10, 2023 Share Posted January 10, 2023 Is this perhaps the effect that gas to isolated tile has a very high heat exchange (relatively) and massively more than liquid to isolated tile? So Magma->gas->isolated tile as "loss-path"? Link to comment Share on other sites More sharing options...
Joe Dee Posted January 10, 2023 Author Share Posted January 10, 2023 There's no gas, it's all vacuum outside of the steam chamber. But it seems the mech. airlock touching tiles (natural or insulated) transfers heat very efficiently to them, even with abyssalite, and much better than just the liquid magma itself sitting on them, surprisingly. Well, wolframite has much higher conductivity than magma, so there's that. It probably would've been worse with steel. Link to comment Share on other sites More sharing options...
mathmanican Posted January 13, 2023 Share Posted January 13, 2023 On 1/10/2023 at 9:46 AM, Joe Dee said: airflow tiles above the airlock also heated up The airflow tiles are treated like debris, and hence heated up when the airlock heated up. The wiki page on Airflow tiles describes the effects of this (but doesn't state the debri fact). Quote Unlike a true vacuum, an airflow tile will still conduct heat from the tile directly beneath it. Care should be taken with extreme heat sources such as Magma. On 1/10/2023 at 9:46 AM, Joe Dee said: Sometimes I really don't get the ONI heat physics. It's an entire new world filled with all kinds of quirks. Link to comment Share on other sites More sharing options...
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