I searched for the engine briefly, and found no mention of anyone thinking of this.

This post comes from this comment of mine.

In my original comment, I note that I immediately think the strain would blow the entire thing a part.

What are your reasons of why you think would not work, or why no one has tried, or maybe you know someone who did try?

Note, Not the size of a car. More like the size of a cargo ships diesel engine. (“Wärtsilä-Sulzer RTA96-C” as an example)

Imagined design. Original Post

    • MrVilliam@lemm.eeEnglish
      2·
      14 hours ago

      I don’t know of any piston that can initiate a fusion reaction, but that doesn’t mean it’s never going to be possible. But I think that such a thing would take teams of top researchers decades to figure out with any sort of reliability.

      Regarding the rankine cycle, the diagram would need to be much more detailed. From what I am understanding of your diagram, no it couldn’t work that way. I don’t know a lot about fusion, but from my experience in fission nuclear power plants and combined cycle natural gas plants, I can make some assumptions about what to expect from a rankine cycle plant regardless of fuel source. You would need to ensure that only superheated (dry) steam is ever touching the steam turbine blades, and there is a ton of essential equipment that does exactly that. There are a ton of resources out there to learn more about this, and I’d recommend searching “rankine cycle explained” on YouTube to get started. General overview stuff might touch on things like drums and reheaters and condensers and vacuum pumps, but every little piece like that could use its own deep dive, really. It’s fascinating stuff.

      Overall, I think there is already a general understanding of how to make a fusion rankine cycle power plant work, and it’s now just a matter of getting a sustainable reaction and then finding the optimal design and operation to safely and reliably maximize the extraction of that thermal energy to perform work. Should this be more like a BWR or a PWR plant? What do refuel outages look like? What sort of preventive maintenance will be required? What sort of hazards will workers be exposed to, and how can we mitigate that?

      I’d love to see commercial fusion reactor plants in my lifetime, but I don’t think I’ll see it. We’re pretty close to seeing fission SMR plants really get going. As much as I hate AI shit, their data centers are power hungry af which has pushed these companies to think about providing their own on-site power to relieve strain from the grid, and these SMRs are kinda perfect for this. If we could see that scaled up or at least batched into array designs, we buy a lot of time to figure out fusion while shifting to a greener energy solution or at least replace the existing and very much aging fission plants we already have. And maybe SMRs can teach us something about fusion along the way.

      Stay curious :)