Live data from Hacker News

Fusion Power Plant Simulator

fusionenergybase.com

11–20 of 135 posts

Re: Fusion Power Plant Simulator

#11

For whatever reason the game doesn't load until I switch to the dark mode If I enable advanced mode, the "exiting" in Heating Power (exiting) gets overlapped with corresponding numbers Display menu doesn't allow switching to Energy mode

Thanks - what browser?

Re: Fusion Power Plant Simulator

#13

No melt down? This game sucks. On a serious note: I wonder how practical and safe it would be to build fusion pants close to city centers in order to harvest the excess heat for district heating. Would be a boon in e.g. NYC which already has a large district steam system. You can do cooling too, look up "steam absorption chiller."

> I wonder how practical and safe it would be to build fusion pants close to city centers in order to harvest the excess heat for district heating

The cost/benefit for doing this seems pretty similar between fusion as gas power. We don't usually do this with gas, so I guess it's probably not viable for fusion.

Re: Fusion Power Plant Simulator

#16
A good addition would be the sales price per MWh, price for the power plant, and the loan interest rate.

Because IMO all that is extremely critical. I fully support the pursuit of fusion as a scientific endeavor, but given that we're probably at least 30 years away from having anything approaching commercial deployment (assuming ITER is built, works, is followed promptly by DEMO, it works, and is followed promptly by people building more reactors. That's a heck of an assumption), it's not at all a given that it'll ever make a profit. That's a lot of time to build a lot of very cheap renewables.

And there's also opportunity costs. I see a lot of hopes put on fusion and don't really understand this chasing of the perfect solution. Even best case, it's not happening in decades, and it'll take decades more to build fusion as anything more than one off multi-decade-long research projects. That's a lot of time for the world to get worse while waiting for fusion to happen, and we might as well just throw renewables at the problem now instead of waiting.

So opportunity costs would also make for an interesting thing to calculate. Given that fusion will likely not make a major difference climate/pollution-wise for half a century, what else could we build in that time, and how much and what effect would that have?

Re: Fusion Power Plant Simulator

#17

No melt down? This game sucks. On a serious note: I wonder how practical and safe it would be to build fusion pants close to city centers in order to harvest the excess heat for district heating. Would be a boon in e.g. NYC which already has a large district steam system. You can do cooling too, look up "steam absorption chiller."

Fusion power plants can't "melt down". The amount of plasma inside the vacuum chamber is just around a gram.

Re: Fusion Power Plant Simulator

#18
post #4

fantastic PBS Space Time on what the last steps are going to be to finally make fusion possible https://www.youtube.com/watch?v=nAJN1CrJsVE (fusion is -always- just a decade away, perpetually, lol)

> fusion is -always- just a decade away, perpetually Wasn't it perpetually 20 to 50 years away? I'm not an expert on the space. But new computational methods and magnets seem to be genuine steps forward.

the PBS Space Time episode suggests to me the housing walls might be the biggest problem

it consumes itself or makes molecules that are destructive to the walls or insanely toxic so can never risk leaks

whatever solution they come up with I suspect it will require a lot of constant maintenance on the first generation

Re: Fusion Power Plant Simulator

#19
post #17

No melt down? This game sucks. On a serious note: I wonder how practical and safe it would be to build fusion pants close to city centers in order to harvest the excess heat for district heating. Would be a boon in e.g. NYC which already has a large district steam system. You can do cooling too, look up "steam absorption chiller."

Fusion power plants can't "melt down". The amount of plasma inside the vacuum chamber is just around a gram.

> Fusion power plants can't "melt down"

Eh, a core-containment failure (in any magnetically-contained system) would involve superheated hydrogen getting friendly with oxygen. That, in turn, would give neutron-impregnated barrier materials a free ride on propellant. It's not strictly a melt down. But it's in the same practical category of failure.

Re: Fusion Power Plant Simulator

#20

For those interested not only in simplified energy balance of a fusion power plant as shown in Fusion Power Plant Simulator, but in more realistic engineering of heat extraction from a tokamak I recommend the following lecture by Dr. Dennis Whyte from MIT Plasma Science & Fusion Center. Fusion Reactor First Wall Cooling https://www.youtube.com/watch?v=bHJyoqDO0zw One of the designs uses 3D printed silicon carbide vac…

My favorite video that walks through fusion energy design/sizing/cost equations is also a lecture by Dennis Whyte: https://youtu.be/KkpqA8yG9T4?si=U8xaAAvjdnt6yqr8 It’s a really engaging lecture - I’m normally pretty put off by 100-minute lectures on YouTube but this one was both very easy to follow and perfectly scoped. Can highly recommend it - the learnings from it are timeless fundamentals that really make fusion power design and economics accessible.

The big takeaway is that better magnets reduce reactor size by the 4th power, and energy output and cost by the cubed power. Finding a material for the magnets which doubles their strength would reduce the size of the reactor by 94% and the cost by 88%.

A possible conclusion one could make is that with regular advancements in magnets it’s very possible that the first operational commercial fusion reactors will be relatively low-cost compared to current and planned fusion reactors, and even though they may begin construction after the next generation of super-sized fusion reactors - they might be finished and operational before their “predecessors” with inferior magnets have completed being built.

Post reply on HN