Development of productivity started in 1981

Chapter 141 Room-Temperature Superconductivity and Superconducting Applications

"Tomoko, continue calculating superconducting materials with copper and iron as the main materials. Regardless of the superconducting critical temperature, all combinations with a probability greater than 50% must be listed."

"Got it, but it may take a long time to calculate so much data."

"It's okay. Once you find a combination of superconducting materials with a probability of more than 50%, remind me and I will manufacture and test it simultaneously."

"In that case, I'll start working."

After obtaining two superconducting materials in the dry ice temperature range, Wang Jiankun asked Zhizi to start calculations on new superconducting materials.

He had previously measured the data on how atomic vibrations of most materials change with temperature and gave it to Zhizi, so he asked Zhizi to make new calculations.

There are still many inconveniences in using superconducting materials in the dry ice temperature zone. If used as a wire, there must be a cooling and heat-insulating cover on the outside of the wire. If used on a coil or structural part, the manufactured equipment must also have a cooling protective cover to allow it to work in a dry ice atmosphere.

Fortunately, dry ice, a cooling material, is non-conductive and non-corrosive, and its preparation cost is very low. If room-temperature superconducting materials cannot be found for the time being, it is possible to use these two dry ice temperature zone superconducting materials first.

On the morning of September 9, Wang Jiankun began to carry out a comprehensive update of the wires in the base.

The structure of the new conductor is as follows: the center is a 5 mm diameter CD203 superconducting wire, which is then covered with a layer of insulating material.

Next is a cylinder with a porous structure, 2 cm in diameter, the holes of which are filled with dry ice.

After making more than 100 meters, Wang Jiankun began testing. During use, Wang Jiankun found that the dry ice would continue to vaporize, and he needed to use his superpowers to replenish the dry ice into the cylinder.

Moreover, if the vaporized dry ice has no vent holes, it will burst the outer cylinder.

Obviously, using dry ice to cool down is not appropriate. After some thought, he decided to use liquid nitrogen to cool down.

Liquid nitrogen can be circulated through pipes by installing a cooling device on the circulating pipes.

Nitrogen accounts for more than three-quarters of the air, so it takes a lot of electricity to liquefy it.

However, if large equipment is used to produce liquid nitrogen in the future and small compression cooling devices are used to keep it warm, this method of cooling with liquid nitrogen is still worth using.

Once we determined that we would use liquid nitrogen for cooling, the manufacturing process was very quick and it was easy to make small compression equipment.

It was used before when manufacturing nuclear reactors, but that kind of compressor was too powerful. It was used to pressurize and cool liquid helium. Wang Jiankun made the same one himself during the experiment. If it is used on a large scale in the future, he will make a model with lower power.

After making a 100-meter-long test wire, he replaced the superconducting wire with a wire used to charge the graphene battery.

After replacing it, the charging speed increased a lot, and there was almost no loss.

In the past, when charging with high current, the heating of the wires would consume some electrical energy, and the heat generated would also require the cooling system to remove it from the base.

Now that superconducting wires are used, there is almost no heat generated by the wires, and only a small compressor will consume some electricity when working.

However, a superconducting wire that is only 100 meters long cannot yet demonstrate its advantages, so he continued to manufacture it and replaced all the power lines in the base with this superconducting wire.

After the replacement was completed, Wang Jiankun checked the temperature detectors throughout the base and found that the temperature had actually dropped a little.

This is because after replacing tens of thousands of meters of wires, the heat generated by these wires is no longer generated, but the cooling system is still working at the same efficiency as before, resulting in a brief drop in temperature.

However, after the temperature detector feeds back the results to the central control room, the computer will issue instructions to reduce the heat dissipation rate, and the temperature will slowly return to the set 25 degrees Celsius.

After updating the wires in the base, Wang Jiankun began to manufacture superconducting generators.

The working principle of the generator is that when a conductive fluid flows through a channel and is affected by a transverse magnetic field, an induced electromotive force will be generated. If two electrodes are placed on the channel wall, electricity can be extracted. The output power of magnetohydrodynamic power generation is proportional to the square of the magnetic induction intensity.

Ordinary magnets can only generate a magnetic field of a few thousand gauss, but if superconducting magnets are used, they can generate a magnetic field of tens of thousands or even hundreds of thousands of gauss, thereby greatly improving the output power of the magnetic fluid.

The nuclear reactor in the base is still operating at low power, with helium turbines driving ordinary generators to generate electricity.

Wang Jiankun found in his mind the design of a small superconducting generator that Zhizi had helped design a few days ago and prepared to start making a prototype for testing.

The internal rotor structure of this superconducting generator has undergone some changes, and the external shell is completely different, mainly because a liquid nitrogen cooling system has been added.

After making the prototype, Wang Jiankun built a high-horsepower diesel engine to serve as a power source to drive the generator to generate electricity.

After testing, the power generation efficiency of this superconducting generator is 1.6 times that of generators of the same specifications.

The efficiency is only increased by 60% mainly because it has to be considered for use with a steam turbine. Logically, this kind of superconducting generator should be designed with a separate power source, or designed separately based on the power source. Now Wang Jiankun has no urgent need to improve the efficiency of the nuclear reactor, he just wants to verify the superconducting generator.

After completing the test, Wang Jiankun then began to manufacture and test the superconducting transformer.

In fact, the electricity used in the base is all direct current, and the only transformer is on the reactor. However, Wang Jiankun manufactured the superconducting transformer to verify the rationality of Zhizi's design, and then planned to go to northern Myanmar to replace the transformer in the Southern Liberation Army.

In the entire power transmission and transformation system, power loss mainly occurs in the wires and transformers. Ordinary transformers use very long wires, so their internal resistance is very large and the heat generated is very high. Insulating oil is usually used inside to cool and dissipate heat.

This also results in the transformer being large in size and heavy in weight.

According to the drawings provided by Tomoko, a transformer weighing only 3 kilograms was manufactured.

The internal wires are made of CD203, and liquid helium is used as insulating and cooling oil.

After the manufacturing was completed, a series of tests were carried out. The results showed that although the weight was reduced to one-third of the original, the transformer performance was not reduced, and the power loss was reduced to one-half of the original.

Since the effect was so good, Wang Jiankun trial-produced several transformers with different voltage transformation performances in the base.

Test results show that the weight of transformers using superconducting materials can generally be reduced to about one-third of the original, power loss can be reduced by half, and the volume can also be greatly reduced, generally by about 40%.

After completing the trial production of superconducting wires, superconducting generators and superconducting transformers, it was already evening.

He replaced the superconducting generator on the nuclear reactor, which greatly increased the reactor's power generation capacity.

He restored the several superconducting transformers he had manufactured into raw materials, and planned to continue manufacturing and testing other superconducting devices tomorrow. He returned to the house he had bought on the ground, rode his motorcycle to the restaurant at Dongmen Bridge, and prepared to order some Sichuan cuisine.

I have been busy day and night for a while. Today's superconducting test has made obvious progress, so I have to reward myself with something good.

While eating, I happened to meet Wu Xiaoyi again.

"Wu Xiaoyi, are you eating?"

"Jiankun? Come on, come on, these are just served, sit down and eat together."

"Boss, another pickled fish and spicy chicken."

Wu Xiaoyi invited Wang Jiankun to sit down and eat together, and then added two dishes that Wang Jiankun liked.

After school started, although Wang Jiankun seldom went to school, he still took time out every week to provide study guidance to several disciples and Wu Xiaoyi.

So Wu Xiaoyi was very enthusiastic when he met Wang Jiankun.

"Wu Xiaoyi, we have another monthly exam tomorrow. How is it? How much do you think you can improve this time?"

"It's hard to say. Jiankun, aren't you teaching a few more science students in the second year of high school? According to previous estimates, I might be able to make it into the top 12. This time, there are three more people accepting your guidance, so it might be a little bit off."

"You won't blame me for teaching new students, will you? But these students were forced upon me by the principal. If you have any ideas, go find the principal."

"Jiankun, no way, how could I blame you? I am just grateful to you."

"Okay, they started receiving instruction later than you did, and from now on I will only provide materials, so I may not have time to tutor them individually. But I will still come to explain things to you guys regularly, so don't worry. As long as you study hard according to my instructional materials, you will definitely be able to pass the entrance exams to Peking University and Tsinghua University next year."

"Well, our family is very grateful to you, Jiankun. Your uncle has invested in a motorcycle engine factory in the county, which has provided great support for my father's work!"

"We support each other. This is my hometown. Before, due to the bad economy and the lack of jobs, idle people started to commit crimes. Now, by providing jobs, social security has been greatly improved, which is also very beneficial for my travel."

"By the way, didn't you always like riding motorcycles? Why didn't you come to me recently to exchange motorcycles?"

"No, I know you lent me the bike because of my dad, but it actually took up a lot of your time. Now I plan to save money to buy one myself."

"Oh, that's fine. There seems to be a motorcycle shop in Raozhou. If you want to buy a motorcycle, you can go there and look for the owner, Cheng Xingcheng. He will reserve one for you."

"Okay, thank you then. I wanted my dad to help me say hello before, but now that you have a connection, I can save him the favor."

"Has the county ever thought about making its own motorcycles? Now many people in big cities want to buy motorcycles, and the market demand is definitely huge. Jialing Factory will sell as many motorcycles as it produces. Not only will Jialing Factory make a lot of money, but those who can get the goods will also make a lot of money!"

"The county builds its own motorcycles? That's hard, right? The technology to build a motorcycle must be very high, right?"

"The most difficult engine is already under construction. The remaining difficulties are the manufacturing of gearboxes, frames, wheels, etc. The technology can be purchased abroad or in Hong Kong. As long as the county wants to do it, it should be solvable."

"Really? Why do I feel it is so difficult?"

"It's not difficult for those who know how to do it, but it's not difficult for those who know how to do it. If your father has ideas in this regard, he can go to Guang City to investigate. Many companies there are already preparing to manufacture motorcycle parts. When the time comes, the county can buy some parts and then find some people who understand mechanics to assemble them. It should be possible to build our own motorcycle."

"Okay, I'll talk to my dad about it, but it's definitely not going to work this year. The county's finances are already very tight. Although Xingyao Group has invested a large sum of money, the county's supporting projects have also consumed a lot of finances."

"Well, I just have a suggestion. We still have natural resources in Jiang Province. There is coal and iron around Raozhou, and there is no shortage of copper. Other non-ferrous metals are also abundant. If we can choose the right industry around these resources, the future development will be very good."

After having a meal with Wu Xiaoyi and instilling the idea of ​​making motorcycles into him, Wang Jiankun went to the college entrance examination sprint class for three hours of tutoring.

After more than half a month of contact, Wang Jiankun found that among these 15 students, about 3 of them had the potential to reach the level of entering Peking University and Tsinghua University, and if the other 12 continued to maintain their performance, they would definitely be admitted to a key national university.

The next three days are for monthly exams, and Wang Jiankun does not have much time to spend on the manufacture of superconducting equipment because his time is too fragmented. In the evening, he also has to teach students in the college entrance examination sprint class and microcomputer training class.

However, he did not waste this fragmented time. Zhizi continued to produce some calculation results, most of which were superconducting material structures with a probability of 5% to 60%. Wang Jiankun manufactured and tested them one by one, and fed back the results to Zhizi after each test.

Based on these test results, Zhizi updated the data source, and the reliability of some subsequent output results became increasingly higher.

In three days, Zhizi output the structures of more than 3 kinds of superconducting materials. After Wang Jiankun manufactured and tested them one by one, he obtained 3 materials that can produce superconductivity.

The superconducting critical temperatures of these materials range from over 20K to over 230K.

Wang Jiankun recorded and organized the structures and test data of all these superconducting materials, and planned to publish them slowly in the name of laboratories in Hong Kong and Europe.

Of course, the first thing to be disclosed is the superconducting materials in the liquid helium temperature range. After fueling the world's superconducting research, we will selectively disclose some superconducting materials in the liquid nitrogen temperature range based on the development situation.

However, Wang Jiankun does not know how difficult it is to manufacture these materials. He is using his superpowers to synthesize them, so someone is needed to synthesize these materials using conventional methods.

Wang Jiankun plans to assign part of this work to Fang Guihua and his team, and part of it to the secret base laboratory in northern Myanmar.

With the continuous success of superconducting material calculations, more and more positive data were obtained, and quantitative changes led to qualitative changes. On October 1982, 10, Sophon finally calculated a 1K room-temperature superconducting material.

This temperature means that this superconducting material does not require a cooling system and can be used directly in most scenarios.

That morning, Wang Jiankun, with excitement, carefully manufactured the copper-based superconducting material bit by bit according to the structure given by Zhizi.

After manufacturing was completed, it was placed on a resistance meter for testing and it was found that the resistance could not be measured.

At first, Wang Jiankun thought the resistance meter was broken. It took him a while to realize that this was a superconducting material with a superconducting critical temperature of 318K. The current temperature in the base was 25℃, which is 298K. Of course, the resistance could not be measured.

Wang Jiankun, who was worried, used a heating device to raise the temperature of the material. When the temperature exceeded 318K a little bit, a very large number suddenly jumped up on the resistance meter, which meant that when the temperature exceeded 318K, the material became an insulator.

Wang Jiankun has not yet figured out how to use this characteristic, but he has thought of many uses for this superconducting material. However, he cannot use them in this base.

However, that night he replaced the CD203 and CD218 in the base with this room-temperature superconducting material CD318.

(End of this chapter)