When I heard that the alcohol engine model was successful, Chongzhen was a little dazed.

In later generations, there was a time when the media was hyping that alcohol fuels would replace gasoline, or adding methanol and ethanol to gasoline and diesel. The topic of hype was that alcohol fuels were rich in oxygen and burned more thoroughly than gasoline and diesel. Therefore, people put the important task of saving and emission reduction. Some people even used this brand to provide services for vehicles that burn methanol and modify electronic injection systems. In later generations, gasoline and diesel were too expensive. The price of gasoline and diesel for about seven yuan per liter was compared with the price of methanol for about three yuan per liter. Many people went for cheap methanol, and even taxis in Nanchang used methanol in batches.

In later generations, ethanol was of course not affordable, because ethanol was too expensive, more expensive than gasoline and diesel.

However, in the Ming Dynasty, oil was still buried underground, and Sichuan successfully drilled several oil wells by drilling salt wells, and shallow oil emerged from Shaanxi. However, according to the perspective of later generations, this oil extraction method was too primitive. In fact, it only produced the insignificant oil that seeped out of underground crude oil into the ground (such as oil seedlings, etc.). Just like the Drake oil well drilled in 1859 in Pennsylvania, USA, in total, less than two tons of crude oil were produced.

There are also shallow oil and gas layers in China. Even in Miaoli, Taiwan, after drilling an oil well in Pennsylvania, two years later, an oil well was dug in Miaoli. The well is only a few feet deep and produces 40 kilograms of crude oil per day. But obviously, such oil wells produce too pitiful oil. Before using advanced drilling technology and oil production pumps, it is impossible to produce crude oil in any climate.

Shaanxi has shallow oil and gas extension. Although the reserves are not large, it can produce more than one ton of crude oil a day with a few dozen meters. Compared with the daily oil output of 40 kilograms, it can be said to be a huge output. However, Shaanxi is still in the hands of Li Zicheng. There are also oil fields in Yumen, but now it seems that it is occupied by the Mongolians.

According to Chongzhen's idea, only when one day can we recover Shaanxi be relocated can we talk about oil mining.

Chongzhen and Wang Chengen sat in the carriage. Before Chongzhen could ask questions, Wang Chengen spoke:

"Your Majesty, do you still remember Huang Yibo from the Military Engineering Academy?"

"Is it the one who often gets first in the exam?" Chongzhen will naturally pay attention to the top student of the Military Engineering Academy. Of course, what impressed the most was that Wang Chengen was sorry for Huang Yibo.

Wang Chengen smiled and said:

"I had high hopes for this Huang Yibo at the beginning. I remember telling the emperor that this Huang Yibo is a rare genius, with amazing talent for science, almost at a glance. However, every time I asked him to take charge of a project, every time I ended in failure. I handed him over to the princess and asked him to teach, that's OK! Who knows that he doesn't know how to teach at all. I can't do anything to him. Even the princess sighed, it's really useless to have a good brain! I don't know how to say him anymore, saying he is a 'giant of thought, a dwarf of action'. I can't say that, maybe he can only be called a 'giant of exams, a dwarf of action'!"

Chongzhen thought to himself, why are you talking about Huang Yibo? What's going on with the alcohol engine? Why are you off topic and talking about this nerd? Chongzhen had to say:

"It's not surprising that nerds have them in any era! You should talk about the engine."

Wang Chengen said seriously:

"Isn't this right? Sometimes I'm really outspoken when I look at someone. At the beginning, I planned to accept Huang Yibo as my direct disciple, but later I saw his unsatisfactory appearance. Both the princess and I thought he was useless. Who knew that Zhu Shugui asked Zhu Tongyi, and Zhu Tongyi found the princess again and wanted to find a technical guide for Zhu Shugui. When I thought, Huang Yibo understood the principles of gear transmission and the technology of making gears. It would be a pity that this was useless, so he recommended Huang Yibo to Zhu Shugui. Haha, a story happened right away."

When Chongzhen heard this, he naturally couldn't help but be curious and asked immediately:

"Oh, what story?"

"I don't know how Huang Yibo told Zhu Shugui about the internal combustion engine. When I used to regard Huang Yibo as a proud disciple, I did tell him that in addition to the steam engine, there were more advanced internal combustion engines. I didn't expect that Zhu Shugui was really a person who was interested in this internal combustion engine project. He found Zhu Tongyi to entangle me through the princess. You know, the princess himself is a greedy person who wants to be quick. This made me difficult to get on the verge of being a tiger, but I couldn't refuse it. Without gasoline and diesel, gas can be used. In history, Alto first started

The world's first four-stroke internal combustion engine made by the production was made by gas as fuel, but in this era there were no spark plugs, so gas was certainly not possible. Since it could not be used for spark ignition, it could only be used for compression ignition. Although there was no diesel, alcohol - that is, ethanol - could barely achieve compression ignition. So, with the mentality of not spending money anyway, I threw this alcohol engine project to Zhu Shugui and others. Technically, I talked to Huang Yibo for three hours, and then let them do it themselves."

Upon hearing this, Chongzhen said that although he had played many cars in his later generations, including driving a diesel car, he certainly understood spark ignition. He was confused about what "pressure ignition" means. He didn't understand it in front of Wang Chengen, and he couldn't pretend to understand it. He couldn't come to the scene to ask this question again, so he immediately asked the question:

"Wait a minute, let's understand what the pressure-ignition ignition is. You have to tell me first."

Wang Chengen quickly explained:

"Compression ignition means using the principle of temperature rise after air compression. During the compression stroke, the air entering the cylinder is compressed, so that the compressed air temperature exceeds the fuel's self-ignition point, thereby igniting the fuel combustion work. The ignition point of diesel is relatively low, meeting the conditions of compressed ignition, so the diesel engine does not need spark plugs to ignite. Ethanol barely meets the compression ignition conditions, but the air entering the cylinder must be preheated with exhaust heat. In addition, ethanol must be injected homogeneously, such as two injections, so that the ethanol can be atomized to the maximum extent, so that the compressed ignition can be compressed."

Chongzhen seemed to understand but not understand, so he could only think about it slowly. It was so difficult for him to understand it himself. It was so difficult for a useless Huang Yibo to go public relations, and he actually succeeded! Of course it was a bit incredible, so he asked:

"This Huang Yibo has been defeated repeatedly and has never worked in a project successfully. Could it be that this difficult project has been accomplished?"

Wang Chengen's expression was a little flashing at this moment, and he smiled:

"Zeng Guofan has been defeated repeatedly, but he can't stand him defeating him again and again. In the end, he let him destroy Hong Xiuquan! Huang Yibo also explained through his personal practice what 'failure is the mother of success'! I really can't believe it. Although I encountered problems in the middle, I came to ask me, but in less than three months, he actually made him make the engine model that I dare not even think about!"

Chongzhen was deeply shocked and said:

"As a result, it is possible to make internal combustion engines in the Tang Dynasty. It is not difficult for the Tang Dynasty to distil alcohol!"

Wang Chengen had to smile bitterly:

"Your Majesty, this is just an engine model, and it's still a long way to go before you can really put it into practical engines! You haven't considered any issues such as cooling, lubrication, etc."

;
Chapter completed!