Gu Shun'an said: "Mr. Su! Actually, I don't object to your assumption that the Q value will exceed 50, but I think that with the current accumulation of global technology in the field of nuclear fusion, it will be difficult to achieve it in a short period of time.

It has been 100 years since nuclear fusion was proposed, and it has only reached its current achievements. If you want to improve, I don't think it's a technical problem, it's a matter of materials and the underlying architecture.

Unless we can have disruptive innovation in the underlying architecture!

Otherwise, I'm afraid it will be difficult to surpass the current results. ”

Luo Da said: "I also agree with what Deputy Engineer Gu said. I think we should continue to optimize the Xinglong 6 device. If we can improve the energy consumption or heat conversion efficiency, then it is not impossible to achieve a Q value of more than 20. In fact, considering the underlying design of nuclear fusion, as long as the energy produced is smaller than the consumption, this is already a successful nuclear fusion. So I also think we should be more pragmatic now!

Don't dwell on the size of the Q value.

The key is to look at the power!

If we can build a larger fusion device, it will not be impossible to challenge the Three Gorges Power Station in terms of power in the future. Everyone says yes! ”

"I agree! The key to fusion power generation is power generation. As long as the fusion reactor reminder is large enough, even if the Q value is a little smaller, I don't think there's anything wrong with that. We should build a bigger Star Dragon device now. ”

"That's how I see it!"

"And me!" When everyone heard this, they also nodded in support.

No one is a fool.

Nuclear fusion is now a very complex system.

It can be said that the whole body is touched by a hair.

Unless there is a completely new route for nuclear fusion.

Otherwise, it is difficult to make a big improvement.

Not to mention the incredible height of raising to fifty.

Rather than on such an illusory target.

It would be more important to be pragmatic and build a fusion reactor large enough to even challenge ITER.

Su Han said: "I don't object to what you say!" But your goals are not the same as mine. In fact, when I first got involved in the field of nuclear fusion, I set a small goal for myself, that is, I had to complete a nuclear fusion device with a Q value of more than 50. And for nuclear fusion, I have a bigger goal, which is to stabilize the output.

Most of the current technologies, including our Star Dragon device, have no way to achieve stable output.

Neutron overflow causes the transmutation of the inner wall material, and the position is almost uncontrollable, so if there is a problem, it is necessary to stop the machine for inspection and replace the inner wall.

Even if the robot is not afraid of radiation on the inner wall, how to solve the replaced materials with radiation!

Even if the experimental reactor was barely built.

It's good to be able to work a quarter of the year.

Deduct the cost of time, labor, fuel, and materials.

Is this kind of fusion really the kind of nuclear fusion we want to succeed? ”

Everyone fell silent when they heard this!

I have to say that there are still a lot of problems facing nuclear fusion.

Even according to the current idea, a fusion device was built.

You want long-term stable operation.

The difficulty is also incomparable.

At least it is far from the concept of effective and stable fusion.

Su Han said: "According to the current standard. A 500MWh fusion reactor can produce one billion kilowatt-hours of electricity per year. And that's not even counting the massive amount of manpower and material resources that go into maintaining its systems. Removing these maintenance costs, the so-called successful nuclear fusion can even be reversed in the end!

How can this level of nuclear fusion be called a successful nuclear fusion?

In my opinion, successful nuclear fusion should be the kind of nuclear fusion that can operate in a steady-state state for a long time with very low labor costs and raw material costs.

Nuclear fusion technology that cannot operate stably for a long time is not called a successful nuclear fusion technology.

If we stop our R&D efforts now, the experience and innovation we have accumulated will soon be wasted.

What we call success today is still based on the old, rigid technology of nuclear fusion.

This so-called progress is also embarrassed to be called progress?

Now that we've got good results on all six fusion routes! Why can't we try Article 7? Article 8? Finally, what about a technical route that belongs to us?

Change is the premise of an era, not conformism. ”

Everyone looked at each other and fell silent.

Although everyone also admits that Su Han is right.

But the problem is that this kind of thing is easier said than done.

The key is that there is no R&D direction to be genuine.

After all, they have already tested all the routes that can be tested.

Gu Shun'an said: "Mr. Su! Your talent in the field of nuclear fusion is much higher than ours, I wonder if you have any ideas for the next stage of nuclear fusion? ”

In fact, everyone will know this.

Su Han's level in the field of nuclear fusion is far superior to them.

Because the Xinglong No. 6 device was designed by Su Han himself.

Since Su Han is still insisting on completing the new fusion device.

That is to say, Su Han should have his own ideas.

Otherwise, it would not be possible to be so obsessed with wanting to achieve a newer fusion device.

Su Han said: "Of course I have my own ideas. The controlled nuclear fusion I envisioned! First, it can operate in a steady state for a long time. At the very least, the annual maintenance time should not exceed one-tenth of the operating time or less. ”

Everyone was shocked when they heard this!

Doesn't that mean running for eleven months?

Overhaul for more than a month!

If you can meet this standard.

The effective time of year is absolutely amazing.

But the problem is that this can't be!

Because deuterium-tritium fusion is the escape of neutrons.

And this escape is completely uncontrollable.

As long as the inner wall is transmuted, it needs to be replaced and overhauled, so there is no possibility of a fusion device with long-term steady-state operation.

Su Han said: "Second, when this device is fused, it should be green and pollution-free, and it will not cause transmutation of the inner wall cladding. The inner wall of the device can maintain stable operation, no maintenance, no radiation. Needless to say, you know that. At a minimum, the fusion device should be able to initiate deuterium and helium fusion levels. ”

Hearing this, Luo Da hurriedly said: "But the fusion of deuterium and helium requires a very high temperature!" It may take more than a billion, or even more than two billion degrees. ”

Everyone nodded when they heard this.

Everyone knows that deuterium and helium triple fusion are greener and more pollution-free.

But the problem is that the cross-section of the deuterium and helium triple fusion reaction is smaller.

So the temperature threshold is higher.

The only thing that can do this kind of high temperature right now is the spherical device.

But the problem is that spherical devices are too controlled and too stable to be suitable as a development route for controlled nuclear fusion.