After wiping away the saliva, Yang Qian's eyes were hot and his expression was excited.
"It doesn't matter if it's not environmentally friendly. Just burn coal. We've found so many coal mines. They're just making briquettes. It's such a waste."
Zhang Yumeng decisively refused.
"What you said makes sense. It's better to be environmentally friendly. Don't be like some garbage countries in the past life, which threw everything into the sea, including nuclear sewage. We must be environmentally friendly now."
Yang Gan nodded, agreeing very much with what Zhang Yumeng said, but ideas are just ideas after all, and the most important thing is practical issues.
"It's a good idea, but if you don't use coal, why don't you use electricity? Just our simple battery. I'm not trying to knock you. I guess this little electricity won't make the train run a few kilometers, right?"
"The batteries of new energy vehicles are all terribly heavy, let alone our traditional simple batteries. They are heavy and have not as much power as new energy batteries."
“It’s so heavy and dishy!”
Zhang Yumeng dragged Yang Qian to the hall, and the girls came over one after another to watch the excitement. Zhao Ji felt better and was comforted by Qingqing Niwai.
Zhang Yumeng got a blackboard, took out a thick pile of information, and began to draw on the blackboard.
She knew that other women were just soy sauce, and only Yang Gan could understand.
"Look, an iron placed in a coil can be heated to red within a few seconds. Do you know this magnetic field heating technology?"
Yang Gan frowned.
"Nonsense, I used to use Douyin to watch knife forging, donkey hoof trimming, and fishing."
"Many knife forging competitions use this kind of equipment. Once the thing heats up, the speed is simply too fast. However, I have never seen it in reality. After all, my job has nothing to do with the equipment. .”
Zhang Yumeng smiled.
"You look amazing but you don't know how it works. This technology has already been integrated into every aspect of our lives."
"The most common one that uses this technical principle is the induction cooker! You haven't used it before, right?"
Yang Qian nodded immediately and looked relieved.
"I'm just saying, it doesn't consume much power even if there's no fire, and the firepower is pretty good."
Zhang Yumeng drew a line on the blackboard and explained.
"When a wire is energized, a surrounding magnetic field will be generated around it. If the wire is wound in a circle, its magnetic field shape will be similar to the magnetic field pattern of a magnet. If you can see it, it should be coiled up like a mosquito coil. Shape."
"It also has magnetic force, but because it only has one circle, the magnetic force is so small that it cannot even attract an iron nail."
"If we wrap the wire a few more turns, we can increase its magnetic flux."
Zhang Yumeng drew a circle like mosquito coils on the blackboard.
"In this coil, the strength or weakness of the magnetic field generated is determined by the size of the current passing through the wire."
"As we change the positive and negative poles of the current, the magnetic force generated by the coil also changes direction."
Seeing Zhang Yumeng's metaphor, Yang Qian couldn't help but nodded. What he said was quite easy to understand. If the power source was a battery, it would keep changing its up and down position.
Zhang Yumeng continued.
"At this time, we put an iron rod in the coil, and the electrons in the iron rod will be disturbed by the magnetic field of the coil and rotate to a stable state."
Zhang Yumeng drew another picture.
I saw more than a dozen arrows drawn in a square frame, some pointing upward, some downward, and some left and right. Anyway, they were not uniform.
"This is the inside of the iron rod, and these arrows represent the free electrons inside."
"What is present now is a state of freedom, which is a mess with no rules at all."
"If we impose an external stance on it at this time, the chaotic free electrons inside will be like soldiers, uniformly moving in one direction."
"When the external magnetic field leaves, it returns to its free state."
Zhang Yumeng smiled.
"If we keep switching the direction of the external magnetic field, the electrons inside it will keep changing direction."
"As electrons continue to move, friction will occur. When the frequency of this changing magnetic field switches tens of thousands of times per second."
"It is conceivable that under the friction of electrons moving at such extremely high speeds, they will generate intense high temperatures."
"Because they move in a vortex, they are also called electrical overcurrent phenomena."
"As long as the control changes tens of thousands of times in one second, tens of thousands of times, how do you feel about using this to boil water??"
Yang Qian's mouth couldn't help but open wide.
He stood up excitedly.
"You mean to say that the amount of electricity used to generate a magnetic field is very small, so you can use it to boil water, and then use the principle of a steam engine to drive the train?"
"Bingo, that's right!"
Zhang Yumeng snapped his fingers and smiled.
"How's the efficiency? Why wasn't this technology used before?"
Zhang Yumeng said helplessly.
"We don't use so much electricity here, and your thermal power generation is of little significance. After full industrialization in the previous life, a lot of electricity was used in factories."
"In the past life, our country's annual power generation capacity was 8.85 trillion kilowatt-hours of electricity, and residential electricity actually accounted for only 14% of the electricity consumption."
“So, to measure whether a country is an industrial country, it’s very simple, just look at the power generation and electricity consumption.”
"The country that was known as a lighthouse for the reshoring of manufacturing in the previous life only had half of our power generation capacity."
Yang Gan nodded suddenly, meaning that building a thermal power plant would be a total loss?
Zhang Yumeng took out his design drawing and asked his subordinates to hang it up.
What I saw was a rather weird locomotive. It looked smaller than the previous steam locomotives, more like a bullet head of a high-speed rail.
Yang Qian smoothed his hair, his head was already empty.
"This, this seems to be a high-speed rail, right?"
Zhang Yumeng shook his head.
"No, this is a steam engine, but it doesn't use coal. It uses an electric steam engine. If it uses traditional coal, you have to reserve a place to add fuel."
"The most important thing is that you have to pull several cars of coal at the back, otherwise there won't be enough fuel at all. Now, all you have to do is make a car at the back into a battery. Of course, it will be divided into two groups."
"Why are we divided into two groups? It's okay to make them all into one group."
Zhang Yumeng said angrily.
"Are you stupid? It definitely won't work. I've thought about it. This is my first time designing this train. I don't know what the maximum kinetic energy is and how much power it consumes."
"However, I have designed wind power generation in advance, and I also use a kinetic energy feedback structure."
Looking at the design drawings carefully, ideas kept popping up in Yang Qian's mind.
Unfortunately, I just don’t know how fast this thing can run. If it could run sixty miles an hour, I would be happy.
"Tell me more specifically."
Zhang Yumeng pointed at a row of objects on the roof of the train that were almost as big as the Eight Immortals Table.
"This is a wind-powered fan. It is very large, and each fan is spaced two meters apart from the front of the car to the parking space."
"After the train starts moving, it starts to generate electricity continuously. Although the power generation is tight, it is more convenient than replacing the battery every time."
"As for the power feedback, it is installed on the wheels and can recover about 20% of the kinetic energy. Anyway, it is better than nothing."
"Okay, we've finished introducing things, Yang Qian, would you like to express your opinion?"
The girls immediately chatted and chatted, obviously very interested in this big guy.
Women who can be Yang Gan are not stupid, they all have extraordinary talents or abilities in their own fields.
Krisna, Belika, and Cao Wushuang all thought of transporting grain and soldiers.
Qingqing feels that it is more convenient to ship the sheep directly without having to drive them.
Among the women, those who stay together every day all know about high-speed trains. After all, there are many scenes in TV dramas.
Although they would not ask Yang Qian and Zhang Yumeng about the previous life or previous life, they would also ask what this was.
Zhang Yumeng would explain it briefly every time. The more explanations he gave, the more people would naturally have some ideas.
Yang Gan crossed his arms and kept walking around.
"How many carriages can this locomotive haul?"
Zhang Yu dreamed and said.
"I haven't calculated this. Generally, there are 15 to 20 carriages for pulling passengers. If you are pulling goods, the number can be increased to 60 to 70, but I don't recommend pulling so many!"
"Why?" Yang Gan looked surprised.
"Because of the braking system, I'm not very good at it. I'm afraid I won't be able to stop the car!"
Yang Qian nodded clearly. I see, he had made a green leather car before, and the brakes had to be started far away from the stop, otherwise it would really be impossible to stop.
One can imagine how terrifying that inertia is.
"Okay, I didn't expect you to come up with such a good thing in such a short time. Can I make a suggestion?"
"uh-huh!"
Zhang Yumeng laughed. Yang Qian was like a novice when it came to mechanics. What he said would be very funny, and he could also take the opportunity to mock him.
"Can the carriages for transporting goods be used as split carriages, that is, the sides can be fully opened, so that materials can be easily transported by a crane."
Zhang Yumeng was stunned.
I had never thought of this problem, so I immediately took out my notebook and started recording it.
"For carrying passengers, I think the carriage can be made entirely of wood except for the chassis, which can also reduce weight."
The corners of Zhang Yumeng's mouth couldn't help but twitch.
I have to say that this bitch's mind is really flexible. He can draw inferences from one example and get to the point.
"Okay, let's do this first. You go and let the foundry produce this first."
Zhang Yumeng waved his hand.
"I'm already doing it. If it weren't for you, who says I'm too lazy to cook every day, I'd still like to give you a surprise."
"It's already a surprise."
Zhang Yumeng hit the snake and took the stick, and immediately made his request.
"Since it's a surprise, can you give me some meteorite?"
Yang Gan suddenly jumped up like a cat whose tail was stepped on.
"Damn it, what are you doing? Don't worry about this thing. Just use it and use it less."
Hearing this, Zhang Yumeng's nose became angry and said angrily.
"What are you doing? I've done so many things for you, but it's too much to not give you any iron. Besides, this thing is of great use, right?"
"Besides, I have already asked Mu Qing that the production of this meteorite iron has been very stable. The meteorite iron you have stored is probably enough to build a few tanks."
The corners of Yang Qian's mouth twitched fiercely.
This damn woman, why did she know about it? But considering that Zhang Yumeng's authority is limited to a few places, she can directly participate in many affairs of Yuntong County.
After thinking again and again, Yang Qian spread his hands.
"Now, don't say I don't take care of you, you have to tell me why!"
