Chapter 692 New Energy? (First Update)

The reason why Liu Hai said that the rocket engine itself is fine is because there are many missiles on the aircraft carrier, some of which use solid rocket engines and some use liquid rocket engines.

In fact, many people have a misunderstanding that liquid rocket engines are not as good as solid rocket engines.

But in aerospace, liquid rockets have great advantages. First of all, liquid rockets can be ignited twice.

If you want to land on the moon or Mars, you must use a liquid rocket engine.

That is, the rocket that lands on the moon must turn on the rocket engine when it lands on the moon and returns, which is obviously impossible for a solid rocket engine.

So only liquid rocket engines can be used, and the thrust of liquid rocket engines can also be adjusted, that is, the delivery speed of its fuel pump.

And the world record of the world's largest rocket in 2020 also uses liquid rocket engines.

Of course, solid rockets also have their own advantages, that is, fast response speed, so many anti-aircraft missiles and other missiles in the future use solid rocket engines.

Because liquid rocket engines are canned fuel when they are used, the response time is relatively slow.

"You can arrange it yourself. You have too many things on your hands now. Although we have a gap in this area, it is not much." Sun Aiguo wanted to let Liu Hai participate in the research when he heard Liu Hai say this, but he thought of the many things Liu Hai had on his hands.

"In fact, the research investment in various aspects is already very large. To be honest, our country can develop to this day and have such good achievements in industry. A large part of it is because the various technologies you have developed have broken through the blockade of the West and are even more advanced than the West." Sun Aiguo said again.

"Our automobile industry, yacht industry, motorcycle industry, toy industry, and even in the cultural field, and even the military industry can stand out in the world and even occupy most of the market. Basically, it is the technology you have developed."

"Don't worry too much. There are always things that can't be done, and there are always things that are not satisfactory." Sun Aiguo was afraid that Liu Hai would think too much and be too busy.

"Thank you for your concern, Director!" Liu Hai naturally understood the meaning of Sun Aiguo's words.

"You just said that submarines use lithium batteries. Isn't it said that lithium batteries are not very safe?" Sun Aiguo asked again.

"Lithium batteries are unsafe, but they work well. This underwater sightseeing boat is going to use two types of batteries, one is lithium batteries and the other is lead-acid batteries."

"The performance of lithium batteries is better and the sailing time is longer." Liu Hai is of course preparing for those customers in South America.

Using lithium batteries in submarines is actually a relatively risky move. In the traditional sense, all submarines use lead-acid batteries, but the biggest shortcoming of lead-acid batteries is low energy density and heavy weight.

Lithium batteries have high energy density, but they generate heat when charging and are dangerous.

Of course, it doesn't matter if it is for those customers in South America to transport flour, it is a risky thing.

However, when Liu Hai traveled through time, Xiao Benzi used lithium batteries, and it is said that all submarines were replaced with lithium batteries.

Xiao Benzi had his helplessness in doing this, mainly because his AIP system was not good.

Speaking of which, Xiao Benzi was also hypocritical. On the one hand, he said that he was not optimistic about lithium battery new energy, and on the other hand, he used this lithium battery on the submarine.

The use of lithium batteries by Xiaobenzi is a helpless choice, because if the submarine wants to have higher performance, without a breakthrough in the AIP system, it can only use a lithium battery pack with a smaller volume and higher energy density as a power reserve.

Because according to calculations, the performance of the same submarine using lithium batteries is much higher than that using lead-acid batteries. Lithium batteries can allow submarines to stay underwater for longer and perform more tasks.

If Xiaobenzi's AIP system can meet the requirements of use, they will probably not use lithium batteries.

AIP refers to the fuel cell power system, which is to put hydrogen fuel and oxides into a special combustion chamber for electrochemical reaction, directly convert them into electrical energy, and the output direct current directly drives the motor, which drives the propeller shaft.

Xiaobenzi also boasted that this submarine using lithium batteries is a sub-nuclear submarine.

In fact, this is self-boasting, because the underwater speed of Xiaobenzi's Dajing-class motor is only 4~5 knots, and the most important thing is that nuclear power can start the cycle, so that there is sufficient oxygen underwater.

Other conventional submarines only use compressed oxygen.

Without considering noise, the maximum speed of a nuclear submarine can reach 30 knots.

Moreover, lithium batteries have another shortcoming, that is, the cost is too high. The cost of the Big Whale of Xiaobenzi reached 450 million US dollars.

Of course, Xiaobenzi has always falsified data, so it is no problem for him to brag about himself.

Of course, this is also closely related to the lack of resources of Xiaobenzi himself. He has to import everything.

In his previous life, Liu Hai always heard people say that my country is short of resources. In fact, my country's natural resources are not much less than others. Take iron ore as an example. my country still ranks fourth in the world, although the grade is slightly lower.

But many iron ores in my country are not single iron ores, which contain other rare metals.

In the field of rare minerals, my country has always been among the best. During World War II, why did Sandezi give us so many weapons? He wanted our tungsten ore, tung oil and pig bristles.

Later, why did the bald eagle also give us weapons? It was because they wanted these things.

Lead and zinc are the second in the world, and copper is the sixth in the world.

Natural gas seems to be ranked seventh or eighth.

In the semiconductor era, my country's heavy rare earths account for more than 90% of the world.

As for why we give people a feeling of resource scarcity, it is mainly because the amount of imports is too large.

Why are there so many imports? That's because we used a lot of them as the world's factory in our previous life.

And what else can we buy with the foreign exchange we have if we don't use it to buy these resources.

Some people think that our high-priced import of iron ore is a loss-making business.

But the account cannot be calculated in this way. First of all, how large an industry scale will iron ore smelting drive.

Why do many places of origin of iron ore not use it for smelting and then we directly import crude steel.

That's because no one will do this, and these imported ores also contain rare elements.

In the smelting process of many rare metals, we have reached the world's leading level, just because of this scale.

Just like the slag stored in Panzhihua before, when Liu Hai crossed over, it had been completely smelted again and the rare metals in it had been extracted.

Many people don't understand why my country exports so much crude steel. This slag is also a treasure. Maybe the rare metals gold, silver, copper, aluminum or other lead and zinc contained in one or two tons of slag are of little value, but what about hundreds of thousands of tons, tens of millions of tons, or even hundreds of millions of tons?

Even the slag left at the end can be used as building materials such as cement, so there will not be any waste.

"Then can this lithium battery be used on conventional submarines?" Sun Aiguo asked when he heard Liu Hai say this.

"It's a bit dangerous. My toy diving is small in scale and there are not many lithium batteries in it. If a submarine of several thousand tons uses this lithium battery, the danger is too high. First of all, with the increase of battery packs, the heat generated during charging and so on will increase."

"In addition, the cost. If lithium batteries are used, the cost may double!" Liu Hai certainly disagreed with using lithium batteries for submarines.

"My main customers are actually from South America. I used to sell them small planes, but now I sell them underwater sightseeing boats."

"For such a highly profitable and dangerous industry, the cost of lithium batteries is high, but the performance is good, so it doesn't matter."

"There is also a lead-acid battery, which is mainly used for real underwater sightseeing." Liu Hai laughed when he said this.

"Our small aircraft industry is indeed not doing well now, mainly because those customers in South America can already produce some accessories themselves. They mainly import engines and instruments. They can actually make other wooden accessories themselves!"

"The main reason is that the wood there is very cheap, and people there can actually make various wooden accessories for small aircraft by hand."

"Some even directly weld a simple frame with a few steel pipes to reduce their own weight and increase the volume of goods!" Sun Aiguo shook his head.

The technical threshold of fixed-wing small aircraft is not very high. Except for the core engine, everything else can be made by hand.

Liu Hai nodded. This is understandable. After all, it is more concealed to import engines alone.

"Can the export price of parts be increased?" Liu Hai said when he heard this.

"It has already increased, but there are many fewer jobs in China. In the past, many factories producing aircraft wood parts faced the risk of reduced orders. Fortunately, we now have a high demand for wood."

"The wooden frame packaging used for these products exported every year is an astronomical figure."

"Now the price of imported wood is getting cheaper and cheaper, mainly because the wood in Southeast Asia has impacted the international market. The countries there have just been established and there are not many ways to make money!"

"Plus the rubber industry that dealers are vigorously promoting, that is, cutting down the original trees and using them all for rubber planting."

"But this is also good, making the export price of small books much lower."

Liu Hai probably knows what Sun Aiguo said. As early as more than 10 years ago, we did not exploit the original forests in our country.

It is mainly because imports are too cheap, much cheaper than cutting down forests ourselves.

It is mainly because dealers form a complete supply cycle system. We export industrial products while importing various raw materials.

And many countries in the world only sell resources in exchange for industrial products.

"Distributors have almost monopolized the sale of timber all over the world. Because of the low-price sale of timber in Southeast Asia, many timber companies went bankrupt, and then the distributors bought these timber companies." Sun Aiguo said after taking a sip of water.

Liu Hai certainly knew that the distributors did this to gain control over the timber market.

"But we are not afraid. If their prices are too high, we will cut our own timber."

"And our neighbors to the north also have a lot of timber. Last year, they wanted to export timber to us, but we refused!"

Liu Hai knew that although we had a bad relationship with our neighbors to the north, we still had business dealings, just on a different scale.

"How is the network situation on your side? Do you want me to talk to the people in the railway department and test their opinions?" Sun Aiguo asked again.

"No rush for now. I have asked someone to make a plan. I will report to the superior department after it is completed." Liu Hai nodded.

"Next year, we will have a subway here. The subway from the city center to the airport will be fully connected next year. After that, there will be several subway stations near our factory."

"I really didn't expect it. It will be much more convenient for us to enter the city in the future!" Sun Aiguo talked about another thing.

"Huh? So soon?" Liu Hai knew that the airport he was talking about was the Capital International Airport. In fact, this airport is just northeast of the motorcycle factory.

The motorcycle factory extends a large area from Dongzhimen to the airport.

Even most of the employees in the motorcycle factory don't know how big the factory is, because there are many places that cannot be entered.

The factory has its own traffic police and its own traffic light system.

The vehicles that can enter and exit each factory area are different.

Of course, the factory also has its own passenger planes, cargo transportation, airports, and docks.

"Not fast, there are already several subway lines, and this one is a late plan for us."

"The next step is for the higher authorities to vigorously develop public transportation, mainly because there are too many cars on the road now, including bicycles, motorcycles, and various cars."

"Fortunately, you suggested building a wider road when you first suggested building it, but according to the current development, the city will probably be even more congested in a few years."

"So the next step is to encourage public transportation and prepare to open special bus routes."

"It's not that we explicitly prohibit the purchase of cars and other things. Anyway, if you drive yourself, you will be late for work, so you will naturally not drive."

"Then the next step is to strictly control the time of commuting to and from work, and punish those who are late for commuting and leaving early. , it will be included in more assessments, benefits, and promotions, so that they will naturally take public transportation! "

"In addition, starting this year, all new buildings must have a certain number of underground parking spaces. You have foresight to build several museums in the city and build huge parking lots. "

"If you open these parking lots now, you can also collect a lot of money every year. "

"The next step is to increase the parking fee standards and further reduce the growth of private cars in Kyoto. "

"See if you can slowly ease the traffic!"

Liu Hai finally knew why he didn't want to buy a car in Kyoto in his previous life. On the one hand, there are objective reasons, and on the other hand, there is also the role of policy guidance.

"Should I take out the lithium battery electric vehicle?" Liu Hai was a little hesitant, mainly because it is more dangerous to use lithium batteries for electric two-wheeled vehicles.

In addition, the current power supply is very tight, mainly because the scale of domestic industrial expansion is too fast, and many rural areas often have power outages.

"However, some suggestions can be made on the highway to reserve some places for charging in the future!" But Liu Hai thought of another point. "But now we are strong in engine technology, so there is no need to open another track?"

"But it is a good thing to keep these places. In the future, new energy vehicles will be used together with corporate vehicles, which can reduce our dependence on fossil fuels!"

"Should we develop a natural gas-only engine? my country's natural gas reserves are not small, and the key is that this one is cheap!" Liu Hai thought of a lot more.