Xueba's technology tree

Chapter 219 Core Materials
Feng Yunde got up and took Zhou Yu to the silicon-based polymer materials laboratory.

On the way, he briefly introduced thermal conductive materials and thermoelectric materials, the specific composition and properties of these two materials.

Silicon-based materials have a structure similar to benzene rings, which is called silicon benzene by the Materials Research Institute.

The thermally conductive material is polysilicon styrene.This material has a soft texture and is about the same hardness as graphite, but it conducts heat very well.

As long as there is a temperature difference between the two sides of polysilicon styrene, it can quickly transfer heat from a high temperature to a low temperature. Its melting point is as high as 5000 degrees Celsius and its boiling point is as high as 8000 degrees Celsius. It can still conduct heat in a molten state.

The thermoelectric material is polysilicon, which has a melting point of 4800 degrees and is a semiconductor material.

As long as there is a temperature difference between the two sides of the polyacrylic silene material, it can absorb heat energy and continuously convert electrical energy.

The mechanical laboratory is designing a thermoelectric generator based on this material.

Zhou Yu has a clear understanding of these two materials, and he also came to the laboratory of silicon-based polymer materials.

They had just entered the laboratory, and Feng Yunde introduced a middle-aged man in his 40s just like Zhou Yu.

He is the director of the silicon-based polymer materials laboratory, scientist Jiang Long, who has been responsible for the development of silicon-based polymer materials.

Seeing Jiang Long, Zhou Yu nodded in satisfaction, and said: "I'm very curious about the heat-conducting material polysilicon styrene and the thermoelectric material polyacrylic silene. Show me these two materials."

Jiang Long said excitedly: "Mr. Zhou, our laboratory has already tested these two materials. I will simply show the characteristics of these two materials."

He walked to the material storage cabinet, put on special gloves, and took out an orange-yellow round rod with metallic luster, which was exactly the polysilicon styrene material.

The research assistant immediately brought over two cups of freshly boiled hot water.

Jiang Long put the polysilicon styrene material in one cup of hot water, and put a copper rod in the other cup of hot water.

The electronic thermometer detects the temperature of the two cups of water at all times.

The temperature of the hot water with the copper rods dropped slowly, but the temperature of the hot water with the polysilicon styrene material dropped rapidly to room temperature within two or three seconds.

Zhou Yu immediately understood this little experiment. The polysilicon styrene material can quickly guide the heat in the hot water to the air.

The two systems of hot water and air quickly complete the heat exchange, so that the hot water in the cup can quickly approach room temperature.

Pointing to the two cups of water, Jiang Long asked Zhou Yu, "Mr. Zhou, which one do you think is hotter, the copper rod or the polysilicon styrene rod?"

Zhou Yu thought for a moment and replied: "The temperature of the copper rod is higher, and polysilicon styrene is the center of heat exchange. It must transfer heat quickly to ensure that the heat exchange can be completed quickly.

The polysilicon styrene material itself should not store heat, and it has this property and cannot store heat. "

Jiang Long nodded and said: "Mr. Zhou's guess is correct, the polysilicon styrene material has the characteristics of rapid heat transfer, and its temperature will only be less than or equal to the highest temperature object it touches.

It is precisely because of its characteristics that it can contact objects not higher than 8000 degrees Celsius and has a wide range of uses. "

Zhou Yu thought of a strange physical phenomenon, and asked Jiang Long: "I learned how to boil water in a paper pot when I was in physics in middle school. The paper pot can withstand the scorching of the flame, because the boiling point of water is constant at 100 degrees Celsius, and the continuous heating temperature is also high. It will not rise and cannot reach the ignition point of paper.

Will polysilicon styrene material in contact with other materials affect the melting point of this material? "

"Mr. Zhou, under certain conditions, the polysilicon styrene material can produce this phenomenon, that is, the speed at which the object heats up is slower than the speed at which the polysilicon styrene material transfers heat.

This speed has been tested in detail and we have obtained specific data.

The heat transfer speed of polysilicon styrene material is constant, and whether this phenomenon can be realized is only related to the temperature increase per unit time of the material it contacts. "Jiang Long replied immediately.

Feng Yunde said with a smile: "Mr. Zhou asked about the characteristics of the polysilicon styrene material. How do you want to drill the polysilicon styrene material into the mantle layer to obtain geothermal energy."

Zhou Yu nodded in approval: "That's right, the polysilicon styrene material is too soft, it can't be used as a drill, it must be placed behind the drill.

Conventional drill bits are hard enough, but their melting point is too low, and once they encounter lava in the mantle layer, they will be melted quickly.

If the polysilicon styrene material can balance the heat of the drill bit, so that it does not reach the melting point, we can develop geothermal energy more easily. "

The thermal conductivity of polysilicon styrene material is so good that Xinghuo Technology can already establish a geothermal energy development project based on this material.

Zhou Yu already has a general idea about the development of geothermal energy in his mind.

As long as there are sufficiently hard drill bits and large equipment, the crustal layer can be easily broken through.

The real difficulty lies in the mantle layer. The material has a melting point above 3500 degrees Celsius and has sufficient hardness. This material has not yet been developed.

However, there are many materials with a melting point of more than 2000 degrees Celsius and sufficient hardness. Xinghuo Technology has many.

The polysilicon styrene material can make the materials it contacts achieve thermal equilibrium, and Xinghuo Technology has a much larger range of materials to choose, and this project is more likely to succeed.

Feng Yunde urged: "Director Jiang, show the thermoelectric material polysilicon to Mr. Zhou."

Jiang Long immediately took out a transparent material that looked like glass from the material locker.

The research assistant took another set of alcohol lamps and electrical experiment equipment common in junior high schools.

Jiang Long roasted the polysilicon material with an alcohol lamp, and a wire was drawn from the polysilicon material to connect to a square box device. The square box device led to two electrodes to light up the light bulb next to it.

Jiang Long introduced: "When there is a temperature difference greater than 100 degrees Celsius between the two ends of the polyacrylic silene material, electrons flow from a place with a higher temperature to a place with a lower temperature. Its essence is the transition of electrons to a higher energy level.

The high-energy electrons of the polyacryl silicon material are exported through special equipment to form a current with relatively abundant energy.

We can only observe the appearance of electron transfer, and what kind of deep factors affect it, we are actively exploring now. "

"The complicated principles need to be studied by you.

I just need to understand that polyacrylonitrile can be used for thermoelectric power generation, and we can use the characteristics of this material to realize our interests.

How long does it take for a thermoelectric generator to be developed? "Zhou Yu said happily.

"Mr. Zhou, the theory of thermoelectric generators is mature, and the core material is polypropylene silicon. Director Liu Jing of the mechanical laboratory is developing this kind of equipment." Feng Yunde informed.

"I've learned about the properties of the thermally conductive material polysiliconstyrene and the thermoelectric material polysilicon.

It is urgent to develop geothermal energy projects, and the most difficult geothermal energy conversion has been solved by us.

Other problems are not too difficult, we can solve them relatively easily, and now I am going to formally set up a geothermal energy project team. "Zhou Yu said with determination.

With the current technical reserves of Xinghuo Technology, it is entirely possible to try to develop geothermal energy.

　Thanks to "Heavy Farmer 666" for the reward.

　　Calvin, I just finished coding this chapter after straightening out the thinking in the later stage, and I will make up for it tomorrow.

　　
　
(End of this chapter)