Author Topic: New research shows nuclear fusion timeline expanding faster than universe?  (Read 1158 times)

ergophobe

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I think the date of commercial nuclear fusion is, like the universe, mysteriously expanding.
We are supposedly 15-20 years away from commercial nuclear fusion plants.
https://news.mit.edu/2021/aggressive-market-driven-model-us-fusion-power-development-0224

The thing about this is that the time-to-commercial has been expanding for my entire life. When I did my science report on it in high school, we were only 10-15 years away from commercialization. 

So that means that in 40 years of research, we've fallen an additional five years behind. So the timeline is expanding faster than the research. It's like the stars at the edge of the universe that are moving away from us faster than the speed of light and slowly winking out. It reminds me of the quip about soccer: soccer is the sport of the future and always will be.

At some point, of course, the estimate will become accurate and it really will be 10-15 years away, but how will we know when are looking at *that* estimate instead of the optimistic estimates we've gotten for 70 years?

Or will the timeline always expand faster than the research so that 40 years from now scientists will *know* that we are 20-25 years away from commercialization?

ergophobe

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Re: New research shows nuclear fusion timeline expanding faster than universe?
« Reply #1 on: February 26, 2021, 06:48:39 PM »
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These include what it calls the “leading fusion concept, a deuterium-tritium fueled tokamak,”

My report was on the tokamak reactor. These were the very devices that were supposed to hit breakeven and commercialization in the early 1990s.

Wikipedia:

Quote
By the mid-1970s, dozens of tokamaks were in use around the world. By the late 1970s, these machines had reached all of the conditions needed for practical fusion, although not at the same time nor in a single reactor. With the goal of breakeven (a fusion energy gain factor equal to 1) now in sight, a new series of machines were designed that would run on a fusion fuel of deuterium and tritium. These machines, notably the Joint European Torus (JET), Tokamak Fusion Test Reactor (TFTR), had the explicit goal of reaching breakeven. Instead, these machines demonstrated new problems that limited their performance.
https://en.wikipedia.org/wiki/Tokamak

rcjordan

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Re: New research shows nuclear fusion timeline expanding faster than universe?
« Reply #2 on: February 26, 2021, 07:14:18 PM »
I think there are some medical & scientific research projects that are a lifetime ticket to grant money.

ergophobe

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Re: New research shows nuclear fusion timeline expanding faster than universe?
« Reply #3 on: February 26, 2021, 08:48:53 PM »
Funny you should say that. Before posting here I emailed it to a retired physicist friend who finished his doctorate in 1974. I added a line that I did not post here:

"I am pretty sure that the timeline horizon is determined not by the state of research, but by the state of research funding and what the time horizon is on the grants that scientists are applying for."