The military-industrial scientific research system of the academic master.

Chapter 1384 Taking a break from the busy schedule
When Chang Haonan changed out of his work clothes, the fluorescent pointer on the dial had already pointed to two o'clock in the morning.

He put his hand to his throbbing temple and stared through the observation window at the magnetohydrodynamic generator set that was cooling down.

The pressure gauge in front of me was slowly dropping, and the pointer was shining brightly under the green warning light.

Even small nuclear reactors used to produce isotopes cannot operate near criticality for a long time.

Therefore, after the problem was identified and a phased solution was given, about half of the core control rods were lowered again and the core returned to normal operation.

As for subsequent work such as coil position adjustment and data collection and collation, they are basically complicated but not difficult, and naturally do not require Chang Haonan to direct them personally.

"Old Chang."

Just as Chang Haonan left the control room and prepared to go back to the guesthouse in the factory to rest, Peng Juexian quickly followed behind him:
"Just now you mentioned using liquid lithium as a neutron shield. Are you planning to change the cooling medium from gas to metal as well?"

High-temperature gas-cooled reactors and liquid metal reactors belong to two different directions. Although the energy supply principles are the same, there are still many differences in specific engineering.

If Chang Haonan turns to the latter route, much of the experience will no longer be used by the HTR-10 test reactor.

"That's not the case. Although we have just confirmed that neutron excitation can produce a certain amount of plasma even in liquid or steam, the concentration is not enough to generate electricity. Therefore, the final working fluid still needs to be a helium-xenon mixed gas, mixed with some hydrogen, and lithium is only used as a neutron shield..."

Chang Haonan said this as he put a hat on his head.

This is a habit he has developed recently, which can prevent the sand and dust in the Northwest air from seeping into the gaps between his hair.

In fact, someone once suggested that he just shave his hair, but he eventually gave up because of Yao Mengna's strong opposition.

"hydrogen……"

When Peng Juexian heard this keyword, his eyes lit up and he immediately thought of the fusion power generation research project he was promoting.

Hydrogen itself is of course nothing special, but it is well known that protium has two other isotopes: deuterium and tritium.

Among them, the development and utilization of tritium is one of the key points of fusion research at this stage.

It is also one of China’s current research shortcomings.

But Chang Haonan was walking a little ahead and couldn't see Peng Juexian's expression, so he naturally thought that he was confused about this plan:
"The conditions in space are not the same as on the ground... Even if nuclear batteries are used, there are still significant limitations in terms of energy usage and equipment life. Hydrogen has the lowest density among all gases, and the load on circulating equipment is also low, which can extend the effective working time. In addition, although hydrogen itself is not easy to ionize, hydrogen with an electron cloud can positively promote the ionization process of other gases, which is also conducive to the formation of plasma media."

"As for safety issues, since the protective shell is a positive pressure container and there is no oxidant in the entire facility, there is actually no need to worry."

Peng Juexian was still thinking about it. After a few seconds, he nodded belatedly:
"I've heard those working in wind power mention this before..."

At this point, the subject suddenly changed:
"By the way, Lao Chang, what are your plans for the next few days?"

This somewhat incoherent question made Chang Haonan pause, but he just thought it was just a casual question and answered after thinking for a moment:

"There shouldn't be anything to do before the end of August, so I'm going to go home tomorrow. I haven't seen my wife and children for more than half a month..."

The capital was under martial law during the Olympics, with most flights and trains temporarily suspended and people were in principle only allowed to leave but not enter.

However, Chang Haonan's trip was naturally not affected by these things. At most, he would just make some backup plans for the relevant departments before leaving.

Peng Juexian knew that Chang Haonan would be relatively free in the second half of August, so he asked this question specifically, intending to use this as an excuse to talk about the situation of his own project.

As a result, when I heard others say that they wanted to go home to be with their wives and children, I just held back the rest of the words.

As long as he opens his mouth, it will be difficult for the other party to refuse.

But people can't, or at least shouldn't, do that.

Chang Haonan, who was walking in front, didn't hear a reply for a long time, and turned back curiously:

"What's the matter?"

Peng Juexian thought that it would still take mankind 50 years to achieve controlled nuclear fusion, so a few days would not be a big deal. So he immediately changed his words:

"Oh, nothing... bring some local specialties for my sister-in-law."

"Oh, why are you being so polite..."

"They are just some food, not worth much..."

……

Chang Haonan deliberately did not tell anyone before returning home.

So when he suddenly showed up at the door the next night, Yao Mengna was coaxing little Qihe to sleep in the living room.

It was not until he heard the sound of the door lock turning that he looked towards the entrance with some surprise. Then, his eyes lit up.

He looked down at the child who was already sleeping in his arms.

The nanny nearby understood what was happening and quickly stood up to take the child in her hands.

First, she carried him to Chang Haonan to let him take a look, then she quickly went upstairs without looking back, so fast that even her voice seemed to have some Doppler effect:

"I'll take Qihe to the baby's room first..."

Yao Mengna wanted to put on a serious expression, but she couldn't suppress the curve at the corners of her mouth.

However, since he is a respectable person after all, it is not advisable to get straight to the point as soon as we meet.

So she still tried to find some topics as a prelude:
"I thought you wouldn't be back until early next month... I might have to go on a business trip by then."

"On business trip?"

Chang Haonan put the Northwest specialties that Peng Juexian and his friends had forced upon him by the door, and raised his head with a somewhat surprised look on his face:

"Where to go?"

"Go to Rongcheng..."

Yao Mengna replied, speaking much faster than usual:

"Factory 132 encountered a lot of trouble when producing the stealth technology verification aircraft. After evaluation, it was determined that it was impossible to meet the production requirements of the next generation of aircraft by simply improving the existing equipment. Therefore, they are planning a new production and assembly workshop. Management planning needs to be done in advance to avoid affecting the delivery of subsequent prototypes and mass-produced aircraft."

Fighter jets are divided into generations based on key technologies in the overall design area, and there is no strict one-to-one correspondence between them and manufacturing levels.

Specifically in China, many models are improved while being produced, and the process parameters are not fixed until the first few or even a dozen batches are delivered.

It was not until the beginning of this century that the two types of third-generation fighter jets were able to complete production and finalization relatively quickly.

However, because the fourth-generation aircraft involves stealth indicators, clear requirements are made for the level of component manufacturing and assembly during the design process.

Of course, the technology verification machine is relatively relaxed in this regard, so the old equipment can continue to persist for a while.

"That……"

Seeing that Chang Haonan wanted to continue in this direction, Yao Mengna became a little restless.

Since it is just a prelude, just say a few words.

If we really start talking about work, how will it end?

So interrupt the other person before he or she starts talking:
"Let's not talk about this for now...Are you hungry? Do you want to eat something first?"

She stood up, tidied her hair, and then walked slowly to Chang Haonan.

Although he was talking about eating, his hands did not move in that direction and he had no intention of moving towards the kitchen.

He took the coat from the latter and turned to hang it on the hanger next to him.

When I turned around again, I found that I had unbuttoned a button of my pajamas without knowing when.

She even pretended to accidentally tug at the front of her clothes in case her husband didn't notice this detail.

Fortunately, Chang Haonan is not a real wooden man. Now that things have come to this, he certainly knows what his wife really means.

If I dare to nod and say I want to eat at this time, I will probably have to sleep on the sofa that night.

"No, I've already eaten on the way."

Chang Haonan put on his bathrobe and said:
"But I'm going to have a snack..."

After saying that, without waiting for Yao Mengna to react, he exerted force with his arms, grabbed her legs and back, and ran into the bedroom amid a burst of "resistance" from her punching her chest.

I wanted to throw the person in my arms directly onto the bed and role-play a bully who robbed a woman.

As a result, Yao Mengna changed her posture before entering the door, and wrapped herself around Chang Haonan like an octopus and refused to let go, causing the two of them to roll around in a rather embarrassing manner.

Fortunately, the bed in the master bedroom was big enough, so he did not fall to the ground.

(End of this chapter)