walk into unscientific

"."

Inside the office.

Looking at Li Jue who looked expectant, Xu Yun's expression remained unchanged (after all, his face was disfigured), but he began to calculate quickly in his mind.

Tell the truth.

Although he didn't understand Li Jue's intention of coming to him today until now, Xu Yun didn't feel much obvious surprise in his heart.

after all
From the moment he set his abacus on the tandem electrostatic accelerator, he had already anticipated that this day would come.

When it comes to particle accelerators/supercomputers, energy consumption is inevitably involved.

This kind of understanding can even be said to be a bit bad in later generations, even many liberal arts students who have little understanding of particles have this concept.

Therefore, Xu Yun has been preparing for these things from a long time ago.

Although Li Jue spoke more than a month earlier than he expected, the overall impact was not too great.

After about half a minute.

Feeling that the time was almost up, Xu Yun touched his chin and said to Li Jue:

"Director, to tell you the truth, I have considered the issue of electricity before."

"Now the power situation of our base is very clear. It is a standard situation where the power supply structure is simple but the power consumption structure is complex."

"So if you want to balance the power consumption of the base, it may not be possible to simply use the peak-shaving scheme."

Hear this.

Li Jue nodded in agreement.

The power supply structure Xu Yun mentioned is the three major sources of power at the base, that is, the base's self-operated thermal power plant, as well as the power transmission from Shanzhou Hydropower Plant and Qiaotou Gucheng Thermal Power Plant.

The power consumption structure refers to the many projects in the base that require the use of electricity. The total number of large and small projects can probably be listed as thirty or forty, or even more.

Therefore, if you want to solve the power problem, simple reduction of expenditure will not work, you must [open source].

Then Li Jue looked at Xu Yun and said:

"Xiao Han, you are right. Simple peak adjustment may be able to cope with it for a day or two, but if you want to make the base fully operational, you must think of other methods."

"But the problem is that it's easier said than done."

After speaking, Li Jue took a long breath, put his hands behind his back, and introduced some data in detail:
"Xiao Han, the current power generation capacity of our base's self-operated crematorium is 1500 kilowatts, the total installed capacity of Gucheng Power Plant is 1278 kilowatts, and the turbine generator set at the hydropower station is 675 kilowatts."

"Among them, the power supply ratio of Gucheng Power Plant is 38%, which is more than 480 kilowatts, and the hydropower station is 28%, which is close to 200."

"The combined power generation specifications of the three parties are about 2200 kilowatts. With power supply for more than ten hours a day, the total power supply can reach about 26000 kilowatt hours."

"According to our preliminary calculations, once several projects start operating, the base's daily power consumption will increase at least ten times, which means the daily consumption will be more than 26 kilowatt hours."

Xu Yun blinked and pretended to be puzzled:
"Factory Manager, in this case, can you consider transferring some units from other places—for example, the capital?"

"Or ask the organization to come forward and issue an order to increase the power supply ratio of the Qiaotou Power Plant and the Hydropower Plant?"

"It's hard."

Li Jue immediately shook his head after hearing this and said:
"There are currently many friendly units in Xihai Province that need electricity, and the 38% distribution ratio has already caused many comrades from other units to have objections - after all, we are only the Xihai Mining Area on the surface."

"If we forcibly increase the power supply ratio, it will be easy to expose the secret. Secondly, even if all the power in the ancient city is allocated to the base, the power will still not be enough for our requirements."

"As for the crew in the capital, Xiao Han, I'm afraid you don't know the situation. How can there be any spare crew in the country now?"

Part of Li Jue's reaction was acting, but most of it was the truth.

These days, Xihai Province is considered a standard industrial province. In ancient terms, it is a place for farming and mining. There are really a lot of industrial units in the province.

On the surface, Base 221 is just the No. [-] Machinery Factory of Xihai Province and the Xihai Mining Area. The power distribution organization must also take into account the emotions of other units. If there is no brain power supply, any fool will know that there is a problem with the base.

And deploy the crew.
Nowadays, domestic generator sets are mainly manufactured by Harbin Steam Turbine Factory and Modu Motor Factory, and the queue is now three years away.
Even if the organization allows Base 221 to jump in line first, according to the current production efficiency, it will take at least half a year including debugging.

Not to mention that the Modu Electric Factory is now fully producing a set of foreign trade orders for export to Persia. This is one of the few industrial export orders for the rabbits, and it is impossible to stop it no matter from which point of view.

Therefore, the possibility of finding "foreign aid" is actually infinitely close to zero.

Xu Yun naturally knows this truth, and the purpose of asking this question is just to facilitate the rhythm next:
"In this case, then, director, we can only think of a solution based on the type of power generation."

Li Jue was suddenly startled and said subconsciously:

"Generation type? What does that mean?"

Xu Yun nodded slightly towards him, raised three fingers and explained:
"Director, currently our common types of power generation are mainly hydroelectric power generation and thermal power generation, and there is also a less common type of wind power generation."

"wind power?"

Li Jue took Xu Yun's words and touched his chin with his thumb, thinking he had guessed what Xu Yun was thinking:

"Oh, it's the kind of windmill that huffs and puffs, right? - What, Xiao Han, do you want to build wind power?"

But Xu Yun, a clinker, waved his hand and said two words concisely:

"Don't do it."

What a joke.

True.

Wind power is indeed one of the cleanest energy sources at present, but the cost performance of this thing is not high.

The construction cost of a wind turbine is generally close to tens of millions in later generations, and the power generation per hour is only about 2000KW.

If we also consider the cost of building a wind farm in the early stage and the cost of operation and maintenance in the later stage,
Even in plateau areas like the West Sea, for today's rabbits, it is an expense that requires selling blood.

In later generations, domestic wind power generation basically relies on feed-in tariff subsidies, and it is considered good to recover the cost within ten years.

This thing is more suitable for places that are short of coal. For example, it is used in Europe. If you really want to engage in wind power generation in this era, you might as well use the cost to expand the production line of generating units.

Then Xu Yun was silent for a few seconds and said:
"Director, what I mean is that in addition to these three power generation methods, we can also use a brand new method."

"For example, have you ever heard of photovoltaics?"

"Guangfu Power Generation?"

A ray of clarity that had not been contaminated by knowledge immediately appeared in Li Jue's eyes:
"Guangfu Power Generation, what is this?"

"Could it be that the Cantonese people are chasing after the Fujian people and gnawing at them desperately, and then the Fujian people are running in circles like hamsters and generating electricity through their running belts?"

Xu Yun looked at Li Jue with a look of astonishment for a few seconds:
"?????"

Boss, it's a pity that you don't write novels with such a brain.
Then he took a deep breath, temporarily put aside the desire to complain in his heart, and said:

"Director, I'm talking about photovoltaic power generation, the light of light, the volts of voltage."

"In short, this is a way to convert light energy into electrical energy for transmission and consumption, which is the solar energy above our heads."

In the year 2023 that Xu Yun traveled through.

If the electric power field is regarded as a family, then thermal power and hydropower are undoubtedly the well-deserved big brother and big sister.

Nuclear power is the second elder brother, and wind power is the youngest.

There is another younger brother between the second brother and the younger sister, and that is Optoelectronics.

As big as a desert solar matrix, as small as a children's toy, as simple as the roof of a residential house, and as high-end as a spacecraft, this little brother can play with it.

The principle of photovoltaic power generation is attributed to the atomic energy band structure, involving the concepts of valence band and conduction band.

The so-called valence band refers to the region relatively close to the nucleus.

The electrons here are tightly attracted and cannot escape easily.

The conduction band is the region away from the nucleus, where the electrons are unregulated and relatively free.

If an electric field is applied to cause these electrons to run, the material conducts electricity.

In addition to these two regions, there is another region above the valence band and below the conduction band.

This region does not allow electrons to exist, that is, the forbidden band.

Therefore, in the self-heating world, there are generally two completely different materials:
A forbidden band is very narrow, or there is no forbidden band at all.

At room temperature, electrons in the outer shell of its valence band can easily transition to the conduction band.

This is the conductor.

On the contrary, if the material's forbidden band is very wide, generally greater than three electron volts, and electrons stay in the valence band obediently at room temperature, then it cannot conduct electricity.

This is an insulator.

A material with an energy gap of less than 3eV between the valence band and the conduction band is a semiconductor.

These electrons will form something called a PN junction, with the two ends showing different electrical properties, thereby forming an electric field pointing from N to P.This electric field is formed spontaneously, so it is also called the self-constructed electric field of the conductor.

As for the role of the photovoltaic effect, it is to make the paired valence band electrons be "tempted" again.

That is, the valence band electrons absorb the energy of light, the energy becomes higher, and they jump to the conduction band.

The holes that have escaped from the electrons will be thrown to both sides under the influence of the self-built electric field, forming an electric field from P to N.

This is the photogenerated electric field, and its direction is opposite to that of the self-built electric field.

At this time, as long as an external loop is connected, due to the existence of the potential difference, a current will be generated in the loop.

Very simple and very easy to understand.

Of course.

Photovoltaic power generation and solar power generation are strictly two concepts, and the relationship between them is somewhat similar to subsets and sets:
Solar photovoltaic power generation includes many types such as photovoltaic power generation, photochemical power generation, light induction power generation and photobiological power generation. To be honest, even the titles must be distinguished.

But that belongs to the situation in 2023.

Due to the relatively backward productivity in this period, Xu Yun will definitely not be able to come up with standard photovoltaic technology, and will inevitably have to make some magic modifications.

Just like many people think that the 3080 is expensive, so they choose the 4070ti, which is a performance optimization.

Therefore, whether it is photovoltaic power generation or solar power generation, there is no need to be too serious in the dungeon.

"Use solar energy to generate electricity"

Li Jue looked up at the office window. At this time, a ray of sunlight happened to shine directly on a potted plant near the window edge.

Light has energy.

To be honest, Li Jue naturally understood this truth - and he didn't understand it after entering the base. He knew it as early as when he was studying.

But the idea of ​​converting this energy into electricity had never occurred to him or heard of it.

He did remember what Lao Guo once said about water conservancy and nuclear power plants. The energy of that thing was also very high, but it was obviously not the same thing as solar energy.

In fact, what Li Jue didn't know was.

It was actually very late for modern society to formally apply the photovoltaic phenomenon to real technology. It was only last year that the most primitive photovoltaic cells were connected to the grid for the first time.

In another two years, Neon Talent will break through the 242W photovoltaic cell.
As for this technology really began to be regarded as "living energy", it was even later in the late 80s.

Then Li Jue thought of something again, and looked away from the window sill, looking at Xu Yun again:

"Xiao Han, is the photovoltaic technology you mentioned complicated to implement?"

Xu Yun shook his head and explained:

"Director, if you are referring to the complete version of photovoltaic power generation, it will definitely take time and effort to produce."

"But if you just make a beggar's version of the power supply module that can support the base, it's not that difficult."

"I remember that the magic city in China already has relatively mature colloidal lead-acid battery technology, and then it is enough to burn the cuprous oxide and then use a diffusion furnace to do it."

There are many key links in solar power generation, but the core of them is undoubtedly the production of solar panels.

As a DIY party, Xu Yun is very familiar with this.

First, you need to prepare a piece of copper, use sandpaper to remove all sulfides or surface corrosion, and then place it on the electric stove for burning.

As the copper sheet is heated, oxide layers of many colors will appear on the copper sheet, which will eventually be replaced by a layer of black copper oxide.

Then the copper sheet is cooled, and the copper oxide will fall off automatically due to the problem of shrinkage, and the rest is cuprous oxide.

Then find the silicon wafer substrate (DIY circles generally use glass), make a pn junction on the silicon wafer, find a PECVD set to 1/4 wavelength to coat the reflective film, and then use a screen brushing machine to brush the slurry That's it.

In later generations, DuPont or Samsung pastes were generally used for painting, but for Li Jue, or the base, all he had to do was make his own aluminum paste.

According to Xu Yun's calculations.

A 10-kilowatt solar panel requires about [-] tons of aluminum paste, which is not a particularly heavy burden for rabbits.

If everything goes well.

The base can produce these finished solar panels in about one and a half months, and the inverter is not something he needs to consider.

After all, these days, the Rabbits have a lot of big-name academic committee members. If they can't come up with a matching inverter, they can just write a resignation report.

At the same time, the colloidal lead-acid batteries produced in Shanghai can be used to store electrical energy. Xu Yun doesn't know much about the quality of colloidal lead-acid batteries these days, but if he remembers correctly, this thing should belong to a long-standing project. Already established technology.

A set of colloidal lead-acid batteries in later generations can probably withstand deep charging and deep discharging about 500 times. Now, even if calculated at 50% of the times, it is enough to last more than 200 days.

Of course.

The specific plan still needs Xu Yun to go back and summarize it in written form. Right now, he and Li Jue are mainly talking about their intentions—after all, Li Jue is a pure novice technically.
However, although Li Jue does not understand deep theories, he understands donkeys.

Therefore, after Xu Yun introduced the related concepts of photovoltaic power generation, Li Jue's eyes were filled with little stars:

"Xiao Han, in this case, you can work hard when you go back and compile this photovoltaic power generation technology into a document as soon as possible."

"Two no, within three days, hand in the documents within three days, is there any problem?"

Xu Yun has no objection to this:

"No problem, I'll start preparing when I get back."

Li Jue nodded with satisfaction.

Then Xu Yun looked up at Li Jue and asked tentatively:

"Director, if there's nothing else, I'll leave first?"

"and many more!"

As a result, just when Xu Yun was about to leave, Li Jue suddenly stopped him:
"Xiao Han, there is one more thing."

Xu Yun was suddenly startled:
"Anything else?"

Looking at Xu Yun who was a little confused, Li Jue's expression suddenly became a little subtle:

"Xiao Han, actually this is the main reason why I came to you today. There is a writer from the capital who wants to meet you."

"A writer from the capital?"

The expression on Xu Yun's face became more and more confused:
"Who?"

Writer?

These days, domestic writers say more or less. If you add the condition of being eligible to come to the 221 base, the options become even narrower.

Could it be Jian Bozan?

Or Lao She?

Or is it Chi Zijian?
However, Li Jue opposite him had no intention of revealing the secret. Instead, he pointed to the next door:
"That writer is next door. You'll know when you go see him."

Xu Yun thought about it and realized that he was just a writer, so there was nothing to care about.

I guess the capital wanted to leave some mission biography for me, so they sent a reporter-like writer over to chat with me and conduct an interview?

Later, under Li Jue's personal guidance, Xu Yun's wheelchair arrived in front of a room next to the office.

Then Li Jue stopped:

"Okay, Xiao Han, I won't go in. You can go see that comrade by yourself."

Xu Yun nodded:

"Row."

After Li Jue leaves.

Xu Yun stepped forward and knocked on the door, finding that the door was ajar.

So he pushed the door open and pushed the left and right wheels of the wheelchair with both hands into the house.

This room is the reception room where Li Jue usually receives guests. In addition to the wooden table, there is also a set of simple sofas and a small recliner.

At this moment, I saw a person half-lying on the recliner, looking like he was resting.

After hearing the movement at the door, this person also opened his eyes, sat up from the recliner, and showed a warm smile to Xu Yun:

"Comrade Han Li, we finally meet."

The moment he saw the other person's appearance, Xu Yun's breathing, no, it should be said that every cell in his body stagnated for an instant!
three hours later.

Xu Yun left the room in a daze, looking as if he had been spoiled.

But in Xu Yun's eyes, it was clearly visible.
A blazing flame was burning.