Chapter 2787

"Now in our propulsion scheme, the engine must be placed behind the hull, so as to save the length of the transmission shaft, and the chimney must be on the bridge, which leads to the complexity of the chimney, the long steam pipeline and a large number of reduction gears. If we adopt all electric propulsion, the transmission shaft and reduction gears will be cancelled. This will facilitate the layout of the power system and reduce the power consumption Qin Guan began to introduce the advantages of all electric propulsion.

"At the same time, it is also convenient to equip the power system. For example, during normal cruise, the power can be supplied to the power system in a centralized way. In battle, it can tilt to the electronic system and give whatever it needs." Qin Guan said: "Especially big guys like our aircraft carrier can supply power to electromagnetic catapults and electromagnetic barrier cables. The ejection efficiency and recovery efficiency are much higher than that of steam catapults."

All electric propulsion has been continuously applied in future generations. At the beginning, Niu Guoren comprehensively promoted all electric propulsion, just as they first promoted gas turbine in the past. They even started to adopt this scheme for their own aircraft carrier. In Han Dynasty, when it comes to 055 drive, they also began to try all electric drive, which must be because all electric drive has this unique advantage Point.

Convenient power distribution! Give energy wherever you need it. The power distribution is much more convenient than the power distribution of the transmission shaft.

Among them, the biggest problem is that Makarov said that the energy conversion efficiency of high-power steam turbine can reach 60% or 70%, and then transferred to the transmission shaft, about 50%, that is, the energy lost is 50%.

But what if all electric drive is used?

First, drive the generator to generate electricity, and then use the motor to drive the propeller to rotate. In this process, even the energy conversion efficiency of the generator and motor is as high as 70%, and the superposition of the two is 49%. This has not taken into account the efficiency of the steam turbine. In this way, the energy loss is too much.

This is also Makarov's idea.

"We can find the energy conversion efficiency through the best working range of the power system. In particular, if it is first used on the destroyer and the gas turbine drives the generator, the efficiency may be improved," Qin Guan said.

For destroyers, the utilization rate of gas turbines has been very high. However, just like the gas turbines used in tanks, this power system has a unique disadvantage, that is, there is no difference in fuel consumption between idling and full power operation.

When you rotate at low speed, the output power is small, and when you rotate at high speed, the output power is high, but in these two cases, the fuel consumption rate is almost the same, which is definitely a pit father's setting.

Many destroyers are faced with this problem. What is the method? That is, when cruising, they use other low-power gas turbines or diesel engines. When they need to sail at high speed, they will use the main engine. In this way, there is the so-called diesel fuel combination, but the combination of power schemes.

If it is all electric propulsion, there is no need to worry. If two high-power gas turbines need to cruise, start one. The power generated by the generator directly supplies power to the two motors at the tail and drives the two propellers. When it needs high speed, turn on the other, which will easily solve the problem. In the energy distribution scheme, the power is different It has unique advantages.

Therefore, this scheme is also used in cars. When new energy vehicles become more and more popular in the future, a unique car called incremental program comes out. This car has a battery and an engine. However, this engine will not be used to directly drive the wheels. The engine is used to generate electricity. It can be said that it avoids the dilemma of new energy vehicles without electricity. I feel inferior electric machinery!

So, is this farting without pants? Of course not. For ordinary cars, drivers are afraid of engine failure and dare not step on the accelerator. At most, it is 2000 revolutions. In fact, this is not the maximum efficiency range of the engine. The maximum efficiency of the engine must be at least four or five thousand revolutions. This extended range generator works in this range, although it has conversion efficiency Problem, but the engine has the highest operating efficiency, so on the whole, it's not chicken ribs. However, when the battery is dead and the engine starts, it's quite uncomfortable to sit inside the car because the speed is too high, which is similar to that of a tractor.

Qin Guan talked endlessly and explained to Makarov. With his explanation, Makarov gradually changed his attitude: "so, you are already doing relevant research?"

"Yes, we are doing research. After our research is successful, our 10000 ton destroyers may be driven in this way," Qin Guan said.

Ten thousand ton destroyers? Ten thousand ton warships should be called cruisers, okay? Makarov immediately refuted.

Qin Guan can only smile helplessly. In fact, this is also the trend of large-scale warships. Now, the displacement of frigates is one or two thousand tons, and the displacement of destroyers is three or four thousand tons. However, soon, the displacement of frigates has expanded to three or four thousand tons, and the displacement of destroyers has reached ten thousand tons.

Of course, it can be called a cruiser, but what's the use for that name? The statement of destroyer is more acceptable.

"So, do you want to build cruisers like the glory class?" Makarov continued to feel strange. The Han people wanted to bid for the glory class last time. Of course, the two bear countries would not sell such national treasures.

Now, is the 10000 ton cruiser of the Han dynasty like the glorious class?

Qin Guan shook his head: "it is still air defense and anti submarine. As for anti-ship, we will mainly rely on shipborne aircraft in the future. This kind of warship with displacement can carry more vertical launch units and have stronger anti saturation attack ability."

The two rows of anti-ship missile launchers on both sides of the glory class look absolutely frightening, but what's the use? It would be good enough if those spaces were used to place more anti-aircraft missiles.

In fact, with the continuous progress of the vertical launch system, anti-ship missiles can also be plugged in. Therefore, versatility is the first requirement. Look at the equipment of Xiong Guo. They are specialized and incompatible at all. This is their biggest defect.

If you really want to buy it, the Kirov class is still good. This special Arsenal ship is proficient in air defense, anti-ship and anti submarine. However, there is no way to buy it.