Chapter seven hundred and fiftieth chapter half bottle shaking
"Not useful? This data is an important data of the engine. Why don't our tanks use gasoline engines? In addition to the low torque, there is also an important reason, which is that it is too burning oil, with a maximum range of only more than 100 kilometers. Everyone, if we
The tank you built needs to refuel after running a hundred kilometers. Do you want it?"
Of course not! No one likes this kind of tank. Therefore, it is normal for gasoline engines to be eliminated.
"The gas turbine is just like a gasoline engine." Qin Zhenhua introduced: "The American AGT-1500 engine has a fuel consumption rate of 280 grams per kilowatt-hour. The Soviets' technology is worse, and it has not been disclosed, only some from the West.
It is speculated that its data is about 300 grams or less than kilowatt-hour. Let's take a look at the diesel engine used by the German Leopard-2, which is 244.8 grams per kilowatt-hour."
Measuring fuel consumption and getting the average power. To be precise, it is to use an hour of fuel consumption, divided by power, and the data obtained is meaningful. Otherwise, if the horsepower is high, there will definitely be more fuel burning, and the power system will not be able to compare
It's good or bad.
Judging from these data, we can find that American engines burn much more oil than those in Germany, and this is just the average data!
"So, maybe everyone has no intuitive image yet, so we can follow the specific data we already have." Qin Zhenhua continued to introduce: "The capacity of the American M1 tank is 1,900 liters, which means it needs to be carried.
The maximum road trip of two tons is only about 500 kilometers. On average, the fuel consumption per 100 kilometers is about 383 liters. Look at the German Leopard-2 tank, the fuel tank capacity is 1,200 liters, and the maximum road trip is reached.
550 kilometers, 100 kilometers of fuel consumption is 218 liters."
The latter statement is much easier to understand than the previous one. Specifically, it is that the American tanks carry about twice the fuel that the Germans have, so they have obtained similar data on the maximum itinerary!
"As for the Soviets, there are only external calculations, so I won't compare them." Qin Zhenhua said: "The tanks in Germany and the United States have similar weight, and the engines are 1,500 horsepower, but the fuel consumption is very large.
The difference, and, I also want to point out that while Americans claim their engines are multi-fuel hybrid engines, in fact, their favorite thing to use is aviation fuel.”
After all, it was improved by aircraft engines. Although it is a multi-fuel hybrid engine, in reality, aviation fuel is still used more often.
The oil burns a lot, but the aviation fuel is still burning. When he said this, Mr. He finally spoke there: "It seems that even if we build this kind of engine, we can't afford it. Staff Wang, this plan
, let's put it aside for the time being."
"But..." Staff Officer Wang was anxious. He originally wanted to strongly suggest changing directions and overtaking on the curve. The benefits of gas turbines are right in front of him. With so many benefits, what if you burn more oil?
But he is not finished yet, Qin Zhenhua's introduction began again: "We know that the tank engine we use now, step on the accelerator when using it, and loosen the accelerator when not using it. When the diesel engine is idle, the fuel consumption is very small.
The gas turbine is different. Whether it is low or high speed, the fuel is burned like this. Therefore, if we want to do a task and need to keep idle for a long time, the gas turbine may burn all its fuel while waiting for the task.
Now.”
It not only costs fuel, but also costs fuel in all circumstances! Drivers who are stingy in fuel money want to idle the whole journey because idle speed saves fuel, but gas turbines are not, there is no difference between high speed and low speed!
"In addition, the air flow required by the gas turbine is quite large. Under normal circumstances, there may be no problem, but in special areas with heavy wind and sand, the air filter element of the gas turbine is easily blocked." Qin Zhenhua said: "In wind and sand weather, this kind of engine is the best
Don't start it."
In the 1980s, sandstorms were still very scary. In autumn and spring, sandstorms often occur for many consecutive days. In this weather, gas turbines are not suitable for starting. Once the filter element is blocked, the sand particles rush into tens of thousands of times.
You will know what the harm is in the rotating engine.
"When it comes to gas turbines, it will be said that it is small, but when we look at the engine compartment of the M1 tank, we know that it is not small, at least it is definitely much larger than our Black Panther diesel engine, because it also comes with
With the intercooling and heating device, Mr. Wang, you know this about the gas turbine so much, let me introduce you to the intercooling and heating device."
Staff Officer Wang stammered and couldn't speak. Everyone could see clearly about his situation. He was dissatisfied with a bottle, half of it was swaying, and his level was not enough, so he was playing a big knife in front of Guan Gong.
After this incident, it should be a lesson.
"Zhenhua, let's talk about it." Mr. He continued.
"Okay, then I'll introduce it to you. First of all, the intercooling is the same as the intercooling of our diesel engine." Qin Zhenhua introduced it.
The factors that affect the power of the gas turbine are the air flow and the temperature before the vortex. There are a series of fan blades inside the gas turbine, and the one in front is called the compressor. The performance directly determines the quality of the air entering the combustion chamber. The higher the temperature before the vortex
, it means that the greater the degree of gas expansion of the engine, the greater the energy it contains.
When the pressure ratio of the gas turbine compressor is increased to a certain level, the compressed air will become hot and the air flow will decrease. The same is true in turbocharged engines, the air temperature is high and the density is
It's small.
Therefore, an intercooling device appears, reducing the temperature of the air and increasing the air quality entering the engine.
Gas turbines evolved from aircraft engines. Aero engines rely on injection of exhaust gas to push them. The gas turbine adds a turbine, allowing the gas to push the turbine into mechanical energy. However, the exhaust gas produced by combustion still has a lot of waste gas after the power turbine is driven to do the work.
High temperature. Therefore, a device can be added to heat the air that is about to enter the combustion chamber to recover the energy in the exhaust gas. This is the heat recovery device.
With these added, the engine size becomes large.
"I didn't expect that there is so much knowledge in this gas turbine!" Mr. He sighed after hearing this.
"Yes, so, there is no problem with using gas turbines on ships, but using tanks will test technology. The British have a deep attainment in gas turbines, and we have never seen the British tanks that build gas turbines, only the United States and
The Soviet Union was just doing it." Qin Zhenhua said: "Anyway, if I were a tank designer, I wouldn't have touched it."
The first to achieve gas turbineization of warships was the United Kingdom. The British tanks still used 1,200 horsepower diesel engines. They couldn't create a 1,500 horsepower diesel engine, so they didn't need gas turbines.
Why? They know the shortcomings of gas turbines clearly.
"It seems that there is no need for the Americans to invite us to inspect their tanks. They were almost fooled by the Americans." Old He sighed.
What? An invitation from an American? What does it mean to be unnecessary? If you have the chance, you must go and see it! Qin Zhenhua felt a little excited.