Into Unscientific Chapter 740

"PV?"

Hearing the word Xu Yun reported, Wang Yougong blinked subconsciously.

What is this thing?

However, he quickly reacted and asked Xu Yun with some uncertainty:

“Comrade Xu Yun, the photovoltaic power generation you are talking about is the equipment that supplies power to the electrostatic accelerator?”

Xu Yun nodded affirmatively:

 “That's right.”

Wang Yougong's face suddenly became a little hesitant.

As an engineer whose main focus is on the application side, Wang Yougong doesn't know much about Zhao Zhongyao's project and naturally doesn't have much contact with photovoltaic equipment.

 In his impression.

The base's photovoltaic equipment is a set of large iron plates standing on the south side of Jinyin Beach. It stands there quietly every day. As for the specific situation, he really doesn't know the situation.

 The result was unexpected.

At this time, Xu Yun actually said that this thing can be used to power a TV?

Looking at the surprised Wang Yougong, Xu Yun thought for a moment and explained:

“Comrade with meritorious service, you may not be aware that after we proposed the idea of ​​photovoltaic power generation, the capital paid great attention to it.”

“So you may think that those photovoltaic equipment make no noise every day, but in fact, research in this area has been advancing steadily.”

“For example, we published a paper on the metahadron model before. The paper quoted a lot of experimental data. Except for some of these data quoted from the first experiment, the rest are all the results of subsequent experiments.”

“About 70% of the electricity used in these subsequent experiments came from photovoltaic equipment.”

Wang Yougong raised his brows heavily when he heard this, and immediately turned his head to look at Zhao Zhongyao who was aside.

Zhao Zhongyao knew that Wang Yougong was asking himself to verify the situation, so he nodded immediately:

“Comrade with meritorious service, Xiao Xu is right. We can now rely on photovoltaic equipment to supply electricity to a certain extent.”

“Of course, this is also related to the fact that the power required for our experiments is relatively low, but in any case, this technology has indeed achieved certain results.”

 Mentioned earlier.

 The organization is only planning to conduct a live broadcast of an atomic bomb test explosion in the short term, so essentially it only needs to consider the power supply for this time.

There is no need for the Rabbits to build power transmission lines and power stations for this live broadcast. It is simply not practical to electrify the entire country within eight months. (Note: There were a lot of comments in the past two days about how unrealistic it is to spread transmission lines across the country, but I was not prepared to do this at all. At that time, I wrote about the inverter for photovoltaic power generation to convert DC power into AC power to supply the TV. Live broadcast of a nuclear explosion. When has our book ever written such an unreasonable plot? No one pays attention to such a big foreshadowing. I burst into tears.)

Xu Yun never thought about eating up his ears from the beginning to the end. His way to solve the power supply problem is very simple:

 That is photovoltaic power generation.

 Photovoltaic power generation is a technology that Xu Yun mentioned to the base a few months ago.

 Due to condition issues earlier, the circuit components of the base were mainly divided into three sources:

 The base's self-operated thermal power plant generates electricity of 1,500 kilowatts.

 The total installed capacity of the Gucheng Power Plant in Xihai Province is 1,278 kilowatts, and the proportion of power supply to the base is 38%, which is more than 480 kilowatts.

The turbine generator unit of the Xihai Hydropower Station is 675 kilowatts, which supplies 28% of the power to the base, which is close to 200 kilowatts.

 The combined power generation specification of the three is about 2,200 kilowatts. With power supply for more than ten hours a day, the total power supply can reach about 26,000 kilowatt hours.

These power supplies were sufficient in the early days. After all, the base was mainly focused on theoretical research at that time, and the power consumption was basically for domestic power supply.

 But later, with the improvement of theoretical research, the base's functions began to shift to parts production. At the same time, coupled with the arrival of electrostatic accelerators, the electricity pressure on the base suddenly increased to a very high level.

 In that case, Xu Yun proposed the idea of ​​photovoltaic power generation.

Although photovoltaic power generation has been very low-key in recent times compared to other research such as paclitaxel, PCR and Doppler radar, its progress has actually not been left behind.

This time when considering the power issues required for live broadcast, the capital almost immediately thought of this less noticeable technology.

“One of the cores of photovoltaic power generation equipment is colloidal lead-acid batteries. This technology was actually mastered in our country three years ago.”

Xu Yun turned the page of the document in front of him and explained to Wang Yougong:

“After more than a month of research, the Qiyi Battery Factory in Shanghai is now capable of mass-producing colloidal lead-acid batteries.”

“In addition, Comrade Lang Shijun from Northeastern Institute of Technology also solved the problem of the inverter, which can successfully convert DC power into AC power.”

“The current main limitation on production capacity is thin film deposition equipment, which basically has no possibility of breakthrough in the short term.”

“But even so, with our current production capacity, it is not difficult to achieve our preset goals – after all, we are just supplying live TV broadcasts.”

 It is well known.

 Photovoltaic power generation equipment is actually not technically difficult. In the future, if you have enough conditions, you can DIY a beggar's version:

Prepare a piece of copper, use sandpaper to polish off all sulfides or surface corrosion, then put it on the electric stove for burning, then cool the copper piece, the copper oxide will fall off automatically due to shrinkage, and you can get oxide. copper.

Then find a silicon wafer substrate and 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.

Now it is even simpler, after all, Xu Yun can use almost any domestic industrial resources.

For example, the Qiyi Battery Factory he mentioned was the famous Haibao Group in later generations. It built China's first electric vehicle battery and was considered a relatively dazzling enterprise in the history of Chinese industry.

  Qiyi Battery Factory is also the first company in China to master colloidal lead-acid batteries. Four years ago, Huaxia introduced related technology from Mao Xiong, and it took Qiyi Factory five months to completely digest it.

 It's just that due to the low demand, the Qiyi Factory has not listed colloidal lead-acid batteries as a major production planning project.

 However, after receiving instructions from the capital, Qiyi Factory immediately launched related projects.

At the same time, Lang Shijun of Northeastern Institute of Technology and later Northeastern University also solved the problem of inverter design. Although this boss was not selected as an academician, he was very prestigious in the field of industrial automation in China.

 After solving the problem of colloidal lead-acid batteries and inverters, the remaining difficulties are quite limited, mainly in film deposition, but this only limits part of the production capacity.

Xu Yun then paused and continued:

“As for the cost of photovoltaic equipment, it is a bit special. The production line of colloidal lead-acid batteries was shipped directly to China from Maoxiong, so we don't need to spend any more money to prepare it.”

“Therefore, the bulk of the expenditure mainly lies in the cost of aluminum paste. This cost is larger than the original estimate that a 100,000-kilowatt photovoltaic panel would consume ten tons of aluminum paste. The current average value is about 13.4 tons.”

“But again, in terms of the size of the country, this number is not that big.”

Xu Yun spoke in a very calm tone, and did not feel "slapped in the face" because the number exceeded his expectations. After all, the numbers he preset before were basically based on the experience of later generations, and there is a clear generational gap between later generations and today's industrial level.

Therefore, it is normal for the cost to be higher than expected. In fact, let alone more than 30%, even if it exceeds 300%, the benefits brought by photovoltaic power generation are still obvious.

Then Wang Yougong thought for a while and said to Xu Yun:

“Comrade Xu Yun, my understanding of the principle and cost of photovoltaic power generation is limited, so can you please introduce the situation in a more intuitive way?”

“For example, how many kilowatt-hours of electricity does a TV need? How many kilowatt-hours of electricity can a large-scale photovoltaic device generate?”

"No problem at all."

Xu Yun nodded happily. He had originally planned to introduce these data:

“The black and white TV currently produced in Tianjin is 14 inches, which is 35 centimeters, and the power is about 35 watts.”

“That is, the average power consumption per hour is 0.035 kilowatts - for the convenience of calculation, let's calculate it as 0.04 kilowatts, which means that one kilowatt hour of electricity is consumed in 25 hours.”

“As for photovoltaic power generation, our domestic average total horizontal irradiation is about 1333.5 kilowatt hours per square meter, and the output power of a one square meter photovoltaic panel can reach 100-120 watts.”

“In other words, a photovoltaic panel can output one kilowatt hour of electricity in ten hours, and a colloidal lead-acid battery can also store 3 kilowatts, or about three kilowatts, of electricity.”

“If it is only used to generate electricity for televisions, it is enough to equip a television with a photovoltaic power generation panel of half a square meter.”

be honest.

In the later generations when Xu Yun traveled through time, the concept of photovoltaic power generation, [XX square meters generates XX kilowatt hours of electricity] was actually relatively rare.

  The general saying in later generations is how much photovoltaic efficiency can produce electric energy based on the number of effective hours per year. For example, if a 550-watt photovoltaic panel has an effective number of 1,000 hours per year, then it can generate 550 kilowatt-hours of electricity.

However, today's photovoltaic power generation industry is not as standardized as that of later generations. In addition, Xu Yun's purpose is mainly to allow Wang Yougong and others to understand the situation, so he uses a less formal but better-understood way to describe it.

At this time, the output power of photovoltaic power generation panels is not high due to the industrial level, only about 50% of that of later generations. It is not easy for a photovoltaic panel to break 200 watts per square meter in later generations.

Even so, a photovoltaic panel can output one kilowatt hour of electricity in ten hours.

Taking into account some margin issues, one square meter of photovoltaic panels can conservatively supply two TVs with simultaneous broadcasting—and it can be recharged in real time.

To know.

According to the organizational plan, the test time of the atomic bomb will be set at around three o'clock in the afternoon. September is the end of summer, and the amount of sun exposure is destined not to be too low.

 That is to say, even if it relies on real-time power generation alone, photovoltaic panels are enough to support the consumption of televisions.

Not to mention that photovoltaic panels can be charged in advance through batteries, which can completely cover unexpected situations on cloudy and rainy days.

Then Wang Yougong quickly calculated on the paper in front of him, raised his head and asked Xu Yun:

“Comrade Xu Yun, if we calculate according to the specifications of half a square meter, we must produce more than 500,000 photovoltaic panels before September.”

“Can we achieve this production capacity currently?”

 “It's not a big problem.”

Xu Yun crossed his hands in front of him, assuming a classic posture of Commander Ikari:

“There was originally a 48th Institute of the Three Machinery Department in Star City that was ready to be launched. Although the overall expectation is to be officially put into use in two years, the first phase of the industrial park now has production capacity.”

“The organization is preparing to transfer the equipment of Qiyi Battery Factory to No. 48 via waterway. The entire process is expected to take 20 days. By then, the production capacity will reach approximately 30,000 units per week.”

“This output is enough to equip one-to-one black and white TV sets. If the coating technology can make another breakthrough during the period, it is entirely possible to double this output.”

The 48 Institutes that Xu Yun mentioned were later the 48 Research Institutes of China Electronics Technology Group Corporation, which will be the main domestic semiconductor equipment supply base, the largest solar cell manufacturing and electronic industry kiln supply base in the future.

Although the 48 parks will not be officially put into operation until two years later, many of the parks have already been built and have even been inspected. There is no problem in freeing up some of them to give priority to production.

 At the same time, the current domestic production of colloidal lead-acid batteries has reached an annual output of 657,000 units, about 12,000 units per week.

 With operations running at full capacity, it is not difficult to more than double production capacity.

 The main thing that limits photovoltaic production capacity is thin film deposition equipment. After all, these days there is no such convenient PECVD as in later generations. At the same time, Xu Yun really knows nothing about the structural design of this type of equipment, so he really can't do much in this regard.

But as far as Xu Yun knows.

At present, both the Second Machinery Department and the Third Machinery Department have established relevant research groups. As long as there are any technological breakthroughs, the production capacity of this part can be increased a lot - after all, this thing belongs to you. Just one more unit can greatly increase the efficiency. Condition.

all in all.

Even if the rabbits only maintain the current output, the photovoltaic panels produced will be enough.

Think of this.

Wang Yougong exchanged a few words in low voices with several colleagues around him, and then looked at Xu Yun solemnly:

“Comrade Xu Yun, we have no problem.”

Xu Yun nodded to him and returned the salute, then turned his eyes to Li Jue.

This action represented that he returned the leadership of the meeting to Li Jue.

Li Jue coughed slightly when he saw this, looked around the scene, and said:

“Comrades, does anyone have any other opinions or questions about the organizational live broadcast plan?”

 Everyone shook their heads.

"very good."

Li Jue nodded with satisfaction, then looked solemn and said:

“Since no one has any objections, we should unify our thoughts and start the final research with all our strength.”

“After the meeting, a countdown board will be set up in all core factory areas. What is displayed on the board is the countdown to the test explosion of the atomic bomb.”

"Today. No, it should be said that from this moment on, we only have one task left."

“That is to form a rope and charge towards the high ground of nuclear weapons!”

Chapter end