Chapter 900 Warmth to the Warrior
Seeing everyone looking at him, he raised the materials in his hand and patted the parameter page: "This... this... is it impossible? Is the material wrong? Have you reviewed it? "
For example, 1 and 2 are too close, 10.3% are divided into 20.3%, but this cannot explain the 17.1%. "What's impossible?" The other comrades haven't seen this yet.
The comrades who were engaged in satellite power supplies pointed at the material, and were very excited, and their voices were even hoarse: "There are two types of solar cells, the efficiency of polysilicon is 17.1%, and the single crystal silicon is 20.3%!"
There were some comrades related to solar cells in the venue, and they exploded on the spot.
"How many?"
"What more?"
"17?20?"
"No kidding, right?"
" >
"This is impossible!"
It's not because the comrades don't believe it, it's mainly because the number is too explosive.
Everyone looked at the report group sitting in the report seat. There were indeed comrades who were engaged in satellites here, but your satellite was a little too big.
Even the Defense Working Committee was shocked. The materials were brought by Gao Zhendong and others. They had never seen them before, and they had no idea that there was such a big bombshell inside.
I remember Comrade Gao Zhendong said 15% at the time, but was finally reduced to 12% by the Defense Work Committee itself. Now it seems that he did not take that indicator seriously at all, and focused on rebellion.
Lower indicators? I don't.
Not to mention the original 20.3% of single crystal silicon, even the polycrystalline silicon that popped up for no reason was as high as 17.1%, far exceeding any indicator mentioned at the time.
But the comrades from the Defense Working Committee felt a little calmer when they saw Gao Zhendong sitting there. Maybe... is this true?
Gao Zhendong didn't say anything, Tang Shaohui pushed his glasses: "Comrades, there's nothing wrong, it's this number, specific, I will report to all leaders and experts in detail later."
I also know that It is impossible for them to introduce themselves separately before the meeting, so the comrades who are using satellite power supply had to suppress their anxiety and excitement and wait for the meeting to begin.
The Defense Working Committee did not disappoint them. The time came, and the meeting was announced immediately. Don't wait for people, wait for time.
Tang Shaohui was confident and talked with slides.
"... After many tests, the average efficiency of single crystal silicon..."
This is the efficiency of the comrades who are involved in solar panels. When they are most excited, the efficiency of these two boards is the most , it's simply ridiculously high!
"Comrade Tang Shaohui, is this efficiency measured by one board or the result of a multi-batch comprehensive test?" A comrade who works on solar panels is very clear that the most advanced solar panels in China are now in terms of efficiency. But it is about 7%. As for where to use it, he doesn't know.
There is no need to ask about the test method, it says it is standard testing method. However, the test subjects are very particular, and there is a big difference between one board and a batch of boards.
Some of the opportunistic things are just a board, and he hides it and doesn't say it.
"Multiple batches, random sampling, and then the average value was taken." Tang Shaohui replied.
The comrade who asked the question felt a little relieved, and this was no big problem: "Then how big the deviations are there in these different batches of boards?"
You can see a lot of things when looking at the average value. But there will also be many things hidden. If the same average value is very different from each other, it will almost be useless.
"Less than 5%." Tang Shaohui understood this comrade's concerns, but he was confident. In fact, there were also materials, but the answer "please ask experts to read the materials" is obviously inappropriate. "Ah... that's great, I'm fine with this." "How do you achieve such high efficiency?" A comrade was overly surprised and asked. A stupid question.
Tang Shaohui was not easy to answer, so Gao Zhendong took over the conversation: "Haha, comrade, I won't talk about this matter here."
The meaning is very clear, don't you understand the rules yourself?
The comrade reacted, how could he ask? He apologized and made himself blush.
"Why do you want to build an additional polysilicon solar panel?"
Tang Shaohui smiled and said, "Because monocrystalline silicon is expensive, it is very expensive, and it is hard to use it if you want to spread it out. And this The efficiency of polysilicon has reached a very high level, which is both cheap and easy to use, and is more worthy of promotion at this stage."
Cheap? This made the comrades, including the Defense Work Committee, suddenly increase their interest. Comrade Gao Zhendong was still so thoughtful. Not only did he have to do it, but he also had to do it well, and it was also affordable for people. "How cheap is polysilicon?" asked the leader of the Defense Work Committee.
Tang Shaohui mentioned a production cost. Although it was impossible to be as expensive as the price decades later, it still made all comrades who could use solar panels smile.
So cheap! At least it can be afforded.
I could not imagine that solar panels with an efficiency of up to 17.1% can be produced at this cost. This is not a question of whether it is expensive or not, but there is no such thing as at all, not even imported!
Gao Zhendong took the initiative to answer: "I will add this matter."
There is a situation here that Tang Shaohui is embarrassed to say, but Gao Zhendong must say it.
He told the story of Tang Shaohui giving full play to his subjective initiative and suggesting to build more polysilicon solar panels.
"...This is the case. After our comrade Tang Shaohui and other comrades from the Institute 1761, we not only had monocrystalline silicon solar panels originally planned for special purposes, but also made a price. Cheap, excellent performance polysilicon solar panels provide a new high-tech means for low-power electricity use in remote areas. "
This matter was suggested by Tang Shaohui, so Gao Zhendong must do this When the matter was announced, the contributions of his comrades could not be inexplicably destroyed.
Gao Zhendong knew very well that Tang Shaohui was embarrassed to say this matter. If he didn't say it, other comrades would probably put the credit for initiating this matter on his head, which he couldn't accept.
No mistakes, one poem, one post, one content, one in 6, one book, one bar, one read!
The leaders of the 17th Ministry of Machinery are also here. The achievements of ultra-high efficiency solar panels are worthy of his support in this year.
After listening to Gao Zhendong's words, he was very happy. There are many reasons for his happiness, including those based on technology, those in talent training, and those in personal morality.
"Well, you have done a good job! We just need more comrades like you to build society to do better!"
He looked at Gao Zhendong and Tang Shaohui, These young comrades are the future.
The other comrades also applauded enthusiastically, including Tang Shaohui and Gao Zhendong.
As for Tang Shaohui himself, he was filled with joy and touching, and Chief Engineer Gao was so generous!
"…After testing, the first-year decay rate of the efficiency of the two solar cell modules is about 4%, and then it decays about 1% per year. According to theoretical calculation, after 20 years, the module efficiency still has initial efficiency. More than 75%. "
This is a data that many people did not expect. I didn't expect that the attenuation of these two solar panels was so low. You should know that the earliest solar panels could attenuate in 5 years and it was useless .
But this time no comrade asked you how you did it, but instead was very interested in other related things: "I just developed this thing, how did you measure its attenuation rate?"
Tang Shaohui smiled and said, "We used the relevant theories of Chief Engineer Gao's equipment to accelerate aging tests, designed a set of processes and some environmental conditions, used high-energy ultraviolet irradiation components to simulate different times, and then in AM1.5, the battery plate temperature is 25°C and the irradiance is 1000W/square meter, and the test should still have considerable guiding significance.”
The Defense Working Committee then remembered that the equipment accelerated test was not Gao Zhendong's old business before. Now there is no need for the units under the Defense Working Committee. "In addition, we have also conducted tests under radiation conditions, and the tests show that monocrystalline silicon solar panels fully meet the long-term working requirements under relevant radiation conditions." Tang Shaohui added, as for what "related radiation" According to the conditions, he didn't say anything, and no one was too stupid to ask. "Where is polysilicon?" asked the comrade who was engaged in satellites.
Tang Shaohui shook his head: "The polysilicon has not been tested."
"Why not test it?" The comrades who are engaged in satellite power supply are very regretful. This thing is cheap. If it can be used on satellites, more of it will be available. good?
Gao Zhendong took over the conversation and said, "In order to obtain better efficiency, polycrystalline silicon solar cells use P+/N type structures, which are naturally not suitable for use under irradiation conditions. This is also capable of working under irradiation conditions. The single crystal silicon N+/P type solar cells are different. For solar panels under irradiation conditions, high efficiency is the top priority, and the price is not too big. In this regard, single crystal silicon N+/P is the most suitable , it's enough."
Gao Zhendong's words reminded some comrades that he shot out the high-efficiency P+/N type monocrystalline silicon solar cell in one shot. I can only say that Mr. Gao In this regard, the research is very deep.
After listening to the satellite power supply, the comrades who were working on satellite power were satisfied and the most efficient solar panels could be used, so it was okay. "We want a batch of this thing, a large batch! It's the kind of polysilicon." Suddenly, a sound came from behind.
Everyone turned around and saw that they were the representatives of the troops who had swear to say no to speak before the meeting.
No, why don’t you keep your word? You start snatching good things again when you see them, right?
Everyone knows that even if polycrystalline silicon has already had a mass production process, it is probably still necessary to wait for the capacity to climb. The initial production capacity is absolutely not enough.
Gao Zhendong laughed, hey, it’s right for the troops to take the initiative, and he’s already considered it for you.
He nodded: "If you want to use it, it must be equipped with a battery to use it, and the full system design must be carefully considered."
The mountains, islands, border lines and other areas In remote places, if you want to stay, it is best to have electricity. In addition to communication equipment, even if you can only light up a light, drive a radio, and drive an electric fan, it is the greatest warmth for the soldiers.
"Well, we're considering using nickel-hydrogen batteries." Gao Zhendong's words were a bit vague, but the comrades in the army clearly understood what Gao Zhendong was talking about. Solar panels may be used immediately.
(This chapter ends)