Редактирование: Guide to the Hypertorus Fusion Reactor (раздел)

=== Main HFR room ===

[[File:Hfr-delta-example-main-hfr-area.png|400px|thumb|right|Setting up the main HFR room, and surrounding infrastructure.]]

When it comes to cooling, there really is no limit for how much cooling is too much. A couple of Freezers are sufficient to sustain Fusion Power Level 3. An order of about five is enough for safety to pull you down from accidental Fusion Power Level 4, and you really want at least nine if you plan on running at Fusion Power Level 4 long term. You theoretically need quite a lot more if you want to recover from accidental Fusion Power Level 5 or 6, but being able to add large quantities of room temperature Plasma directly to the Moderator Mix to dilute the energy and resulting temperature lets you sidestep this somewhat.

Plasma has a very high capacity, so is very useful as coolant. Filling the coolant network up to about 800kPa is safe for both tier 3 and tier 4 freezers. This can be increased if you know you are only ever using tier 3 freezers, but keep in mind that tier 4 freezers can compress four times as much mass into this space at the same pressure, and can risk emptying the entire plasma holding chamber (!) if blindly pumped in by volume pump or similar.

This design uses many devices in parallel to control the flow of coolant to and from the core.

Leaving the HFR without coolant or moderator gas will very, very quickly raise the temperature of the Fusion Mix while starting up. Leaving the HFR for unattended for two updates (2-4 seconds, depending on current space lag) can be enough to go up a Fusion Power Level, so stay absolutely glued to the HFR interface if you do this - even very brief digressions to the next room over can ruin you!

Fuel used by the HFR is consumed at 47.22...% Tritium to 52.77...% Hydrogen. Setting the mixer to 54% H2 to 46% Trit seems to work out better in practice, for reasons unknown (outstanding temperature differences?)

The configuration shown in the illustration ensures that all important controls are located close to the interface, for easy access. The moderator port is also easy to reach. Fuel Input and Waste Output generally do not need to be interacted with much, so were assigned to East and North respectively simply due to being closer to the networks they want to be connected to.

Waste output, despite being called "Waste", is typically the most valuable output, and the reason to run the HFR in the first place. This design uses two outlets, each behind its own manual valve:

* HFR Heat exchange to Metal Hydrogen. The gases themselves are largely ignored, but the extreme heat from unsafe Fusion Power Levels is used to power Metal Hydrogen formation.
* HFR Output to output gas cooling and processing. Sends output gases through cooling, and around the filter loop once at easy-to-move-and-also-not-catch-fire temperatures.

==== Optional: Hydrogen to Tritium conversion ====

[[File:Hfr-delta-example-optional-h2-tritium-converter.png|400px|thumb|right|Adding optional H2 to Tritium conversion to the HFR room.]]

While not a concern during initial setup, a long running HFR can accumulate excess Hydrogen relative to Tritium, especially at Fusion Power Level 4 where large quantities of H2O are produced for Electrolysis conversion.

The HFR gets crowded quickly, but there is still room for adding an area for excess Hydrogen to be converted directly to Tritium. Since canisters are no longer radiation shielded, a canister on a connector works about as well as a passive vent on a floor sealed by windows, while being much easier to set up. Given the importance of Hydrogen in other processes, set a high Pressure Valve output value to make sure this is truly excess Hydrogen being converted.

The concerns for pressure around the Gas Filter are the same as around Freon formation: Pressure cannot exceed 4500kPa on either output, including an output looped back to the input, or the filter will stop moving gas. Setting a low output pressure prevents this. Here, an arbitrary 800kPa is set. There is room for much more, but be wary of tying up too much Hydrogen for Tritium conversion.

==== Metal Hydrogen production ====

The pinnacle of atmospherics:

* Make Golems at a fraction of the rate that science can manage, twenty minutes later!
* Export for a price laughable compared to what you already produced from the Incinerator alone!
* Wear pretty-sweet looking armor with resistances a fraction of what the basic hardsuits offer, and die to the inevitable thermal leak which makes every area fewer than five airlocks away uninhabitable!

You do get a lot of kudos just for being able to make Elder Atmosian gear, though.

Competes with Nitrium Formation for hardest reaction to master, except you can't bypass the process to make Metal Hydrogen bars using fusion.

The process is too random to make a universal prescription, though 97% H2 3% BZ injected with a slow input will cover most cases. Some notes on both direct and emergent behavior:

* More hydrogen is not necessarily better. Hydrogen and BZ is consumed proportional to the amount of Hydrogen present, though randomly relative to each other, but will still only randomly produce up to one bar per atmos update in ideal conditions.
* More heat is not necessarily better, as it reduces the odds you will produce usable Metal Hydrogen bars.
* Meeting mass and temperature conditions without meeting pressure conditions will cause the reaction to fizzle: still '''rapidly''' consuming energy as normal, but never being able to produce bars. Either ensure you have enough heat that when you have the mass, the pressure threshold is met, or enough mass that when you have the heat, the pressure threshold is met, since this will quickly deplete your heat supply otherwise.
** A mass of at least 301 moles per tile will ensure this condition is never met, but will triple the rate of consumption for the same result.
** or a temperature of at least 28.7 million Kelvin will ensure this condition is never met, but will come with slightly worse than 50/50 odds that hydrogen is consumed without producing anything.

Keep an eye on your hydrogen and heat budgets, as well as how much time you are willing to wait to produce bars, and continually adjust your strategy to suit the circumstances.

Try to make sure the HFR doesn't EMP a third of the station in the process. Reaching over 300% iron content will make it very difficult for the HFR to return to safe operating parameters, regardless of Healium availability. Throwing on the brakes at 280% will keep you safe, but will give you only about four minutes of sustained heat availability.