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https://steamcommunity.com/sharedfiles/filedetails/?id=1832616187
I fill the liquid reservoir with polluted water, pwater has a lower freezing point so you have more leeway. the pipe thermo sensor turns the aquatuners on and off depending on the temp of the liquid in the pipe.
The only thing I have changed is to have 3 thermo sensors, placed at the bottom of the cooling tank. Each thermo sensor controls one aquatuner. They are all set to the same temperature, can be set as low as -3C and the output water is never more than 1C higher than what the thermo sensors are set to.
The system seems to struggle a bit with water input at 100C - thermo sensors are set to 3C, but the output is stable at 5C, however such high input temperature and 10kg/s consumption are highly unlikely.
Time to build it in survival :)
However remove the fill bridges before you stop an aquatuner else it may overfill and get stuck.
I have noticed it already, thanks :)
No complicated system needed and the heat isn't spreading from the vent. Very little power required as well as the only thing I'm spending it on are the 2 automatic doors and the pump in the cooling pit. This is actually my first playthrough where I have a Berry Sludge production.
This could be controlled with the right steam pressure, so that the polluted water doesn't emit any polluted oxygen. That would require unlocking the system only once. And there is also dirt being left inside.
Another solution would be to filter the incoming germy water via sieve.
https://steamcommunity.com/sharedfiles/filedetails/?id=1838835450
https://steamcommunity.com/sharedfiles/filedetails/?id=1838836126
https://steamcommunity.com/sharedfiles/filedetails/?id=1838838222
https://steamcommunity.com/sharedfiles/filedetails/?id=1838867709
I am pumping in water at about 50-70C.
Three thermo sensors in the bottom water chamber are set to the desired temperature (in my case 20C) and the water comes out at exactly that temperature.
4 switches on the right to control doors and gas pumps are for maintenance access. I needed to send duplicants in only once and that's when I added this automation - I haven't actually used it.
Water is pumped into steam chamber when the hydro sensor is below 10 kg and atmo sensor is below 20 kg. Or if the temperature is above 250C (I built it from steel).
The 250C thermo sensor is specially on the left side, as the left aquatuner is the one that works the most often. Despite copper tempshift plates, there is still about 5-10C temperature difference between left and right side of the steam chamber. Tempshift plates in the steam chamber are a must, because otherwise the temperature difference can be even 50C.
To start it up, it requires clean or salted water (not polluted water), as the polluted oxygen will accumulate at the top of the steam chamber and block the steam turbines. After that, any water can be pumped in and dirt (or salt) will be taken out by the autosweeper. I added a clock sensor to make autosweeper work only 3% of time, because otherwise it is wasting 120W energy to pick up a few grams of dirt.
Airflow tile is so that the dirt/salt doesn't go out of autosweeper's reach, as it cannot reach the right most tile.
Because of the polluted oxygen problem, the steam turbines are enabled only when there is more than 5 kg of steam. And the temperature is over 200C, because that's when they work at maximum capacity. Steam turbines don't work non stop, this number could be played with, I didn't bother. I would advise to not set it to over 400C, as otherwise the visco-gel liquid lock will evaporate.
In regards to cooling steam turbines, I pump in 30C germy polluted water and let it run until there are no germs (sensors are set to "below 1 germ"). Tempshift plates are not needed behind turbines, 20kg of hydrogen is enough. This water comes out at about 70C, goes into the same pipe as 95C water outputted by the turbines and then it goes through the cooling and to my base.
Overall, I prioritised the hottest water to go first. From the top left I have a polluted water from cooling a volcano, from the bottom I pump in water from cooling my industrial machinery, another volcano, and water outputted by petroleum and natural gas generators.
In regards to super coolant that runs through aquatuners, 90 kg is needed for each. Sometimes when they stop it seems like one has more than the other - that's because sometimes it outputs it to the pipe and stops before accepting incoming one and sometimes it stops while holding 10 kg coolant inside. You really need to click the aquatuner and check its content. Once you build this circuit, play with the thermo sensor to enable and disable the aquatuner a couple of times to make sure that it works.
Within 500 cycles it runs there were no incidents. However, I have noticed that the temperature around increased to over 50C (I got an overheating transformer built from lead), so I should probably redo the insulation - it is currently built from igneous rock.
Turbines stop working when they reach 100C, if that happened steam will keep accumulating in the room with aquatuners, which is not a problem. Steam can be consumed for energy later.
The important thing is the cooling of the aquatuners and if I broke something with the polluted water vent coming from the top right, aquatuners will get 50% of water coming from the bottom.
So to answer your questions, I didn't calculate and nothing breaks in this setup.
How can this work? Once the water cooling the aquatuner evaporates, theyre gonna overheat aren't they?
No, steam conducts heat pretty well.
It outputs more than I use, but there is still backup cooling from the bottom.
The vent has about 60 tiles of space + 8 liquid reservoirs. The average output is 2.7 kg/s (11.9 kg/s * 222s / 566s * 72.7c / 125.3c). I can see that it is dormant now, 26.3 cycles until next activity (which happens to be exactly half way) and the reservoirs are all full + 11 tons of water still left. I am using it also to cool 3 petroleum generators (same loops as behind turbines - until no germs left). So overall the coolant need is pretty low.
Well, eventually they will overheat. It is not possible to produce heat in insulated room indefinitely.
He has a steam engine, which is removing the heat. I wouldn't place two for one engine though.
Aquatuners need far less cooling water than the steam turbines, so I would need to do something with the extra anyway.
On this map I have 4 polluted water vents, so I have switched all my cooling systems to change the coolant based on the number of germs, rather than on temperature.
The water from the bottom is germ free - it's a used coolant (i.e. polluted water at ~70C temperature), polluted water produced by electricity generators and only then it brings in cold water from the frozen core that I have already melted. I try to not rely on the frozen core because it's not infinite, so eventually I will have to supply water from other vents.
The water from the steam turbines goes again through the water sieve, because I put both water and polluted water into the same pipe. Former comes directly out of the steam engine, latter comes from the radiant pipes loops that run behind steam engines. I could simplify it by making a single loop, rather than 2 independent loops for each steam turbine - they share the room anyway.