Zhang Yi, Xiao Liu, Xiao Long, Xiao Han and Hu Tiejiang led 31 talented boys and girls to devote all their efforts to the research of steam engines.
Among the science and technology books collected, in addition to steam engines, there are also more advanced technologies such as internal combustion engines and gasoline engines. However, the process is extremely complex, the processing of parts is difficult, and it also involves fuel issues.
It can't be done.
Steam engines use coal to provide heat energy, and coal mines are easier to mine than oil, so if you can't eat the fat in one bite, it's better to do it step by step.
Zhang Yi is a person who has witnessed the golden age, has read many books, and has the logical thinking to solve problems.
So before solving the problem, he first taught everyone a lesson titled "How to Solve the Problem".
It's funny to say that many people don't have the skills to solve problems.
What is the problem and what are the conditions for solving it? Break down the problem and list all the details, including the people, money, materials, etc. needed.
Then discuss solutions to the problem, identify the person responsible, and start taking action.
The last step is to provide feedback for improvement and summarize the experiences of success and failure.
Zhang Yi teaches everyone this modern working model.
From now on, every problem the research team encounters will be dealt with according to this model.
This is so important,
…
Zhang Yi began to teach everyone.
"All human scientific and technological achievements are based on the utilization and conversion of energy. The steam engine is an energy converter. Burning coal produces thermal energy, heating water into steam, and driving the piston to move, thereby converting thermal energy into mechanical energy. Our next step
If you add a generator, mechanical energy can be converted into electrical energy!"
Not to mention others, even Xiaoliu understood it and raised his hand to ask.
"Teacher, does that mean we have to keep adding coal and water to the steam engine? Then someone needs to add water and coal, right?"
Everyone admired the princess for being so studious.
"Yes, classmate Xiaoliu." Zhang Yi smiled and nodded.
Everyone couldn't help but clapped their hands and laughed. This title was so interesting.
"After we manufacture the steam engine, we also need to manufacture various supporting facilities, such as coal tanks and water tanks. The size of the coal and water tanks depends on where we use the steam engine."
Zhang Yi explained, and everyone listened carefully with their eyes wide open.
"I have a set of data here. If a steam engine is used on a train, it will carry 2,500 tons of goods and consume 25 kilograms of coal per kilometer. In other words, it only takes 1 ton of coal to travel 40 kilometers. Normally, the coal box capacity of a steam locomotive
If the water tank volume is 20 tons and the water tank volume reaches 30 cubic meters, the train can run 800 kilometers in one breath."
"Students, please note that the teacher is talking about a large steam train, carrying 2,500 tons of cargo, reaching a speed of 80 kilometers per hour, and can run 800 kilometers in 10 hours. This is amazing!" Xiao Han raised his hand to speak, specifically pointing out this point.
The people present marveled at such a large carrying capacity and speed. It was simply unbelievable. It would take several days for a person to ride the fastest horse to cover 800 kilometers.
"It's a pity that the previous rails were dismantled by people to build weapons," Ironsmith Hu regretted. "However, the original foundation is still there. We can also collect the original rails and build a railway. If we go from Chang'an to Mopan City
If so, the steam train can reach us in 6 hours."
Everyone clapped their hands excitedly.
By the same token, it is 1,375 kilometers from Chang'an to Shanghai Port and 1,400 kilometers to Xiamen Port. As long as a few stations are set up along the way and coal and water are added, it can basically be reached within 18 hours.
Less than a day!
The bright future makes people look forward to it. China is not short of iron, let alone coal. Using the scrap steel left over from the past, we can build a railway network all over China!
Within 24 hours a day, you can reach all parts of the motherland, whether doing trade or launching military operations, it is as fast as the wind.
…
After people discussed happily for a while, Zhang Yi continued.
"Steam engines can be large or small. We need to design a variety of models. The steam engines installed on steel battleships can be two, four or eight. The coal tanks and water tanks on the battleships will be larger. Once filled, our
A warship departing from Shanghai Port can definitely make a round trip to Japan."
"This means that when we defeated the Japanese country and came back loaded with loot, we didn't have to add coal and water once in the process, hahaha!" Xiaoliu said with a smile.
Her cheerful character and optimistic nature endeared everyone to her, and they all clapped their hands in agreement with the princess.
"It's like this, classmate Xiaoliu," Zhang Yi said with a smile, "In the past, we installed the steam engine on the steel armored chariot, and the coal and water consumption would be very small. With the addition of large transport vehicles to replenish fuel, we could
Form a real army of steel chariots."
Thunderous applause.
If there are Chinese steel battleships in the ocean and Chinese steel chariots on the land, all equipped with artillery and muskets, they will be invincible in the world.
At this point, Zhang Yi described the foreseeable future and made everyone realize that the steam engine was the core of this industrial revolution.
Of course, Zhang Yi knew very well that this was only the first industrial revolution. After all, steam engines had disadvantages such as low efficiency and high pollution. On the basis of this industrial revolution, the next stage would be towards the development of internal combustion engines and gasoline engines.
Come step by step.
…
Zhang Yi asked people to draw the structure of the steam engine and personally explained the structure and principles.
First, a boiler must be built to burn coal. The material must be alloy steel, which can withstand pressure, corrosion and high temperature.
Next, there is a water tank that sends the water to the boiler through pipes, where it is heated and converted into steam. After that, the steam is transported through the pipes to the working chamber of the steam engine.
At this time, it is necessary to match the piston and cylinder, and add an air valve and an exhaust valve to the top of the cylinder. When the air inlet valve opens, steam enters the cylinder and pushes the piston downward. When the piston moves to the bottom, the air enters
The valve closes and the exhaust valve opens to discharge exhaust gases from the cylinder and reduce pressure.
Driven by the piston, the steam pushes the piston rod upwards and transmits power to external mechanical devices, such as rotating shafts, fans or generators. After the power transmission is completed, the piston moves downward again for the next working stroke.
"This is the principle of the steam engine. It's not profound and difficult to understand, is it?" Zhang Yi asked.
"Yes, teacher, it turns out that the mythical golden age and all kinds of technological miracles were based on such simple and easy-to-understand principles!" Xiaoliu sighed.
Even the princess understood it, not to mention those genius boys and girls.
Everyone was excited and eager to try.
Zhang Yi lifted the veil of scientific mystery.
Through mathematical calculations and mechanical manufacturing, we can create tireless power machines and bring about an industrial revolution sweeping the world!