New problem with Chinese WS-15 aircraft engines: Fullerene membranes lead to excessive fuel consumption

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A little more than a week has passed since the publication in the Chinese press of material that the fullerene coating created in the PRC "will solve the problems with engines for fifth generation fighters." Recall that, according to the Chinese media, scientists have developed a special membrane coating for turbines that can withstand temperatures up to 1,8 thousand degrees Celsius. This, it was stated, would allow the J-15 fighter's WS-20 engine to run smoothly. For these engines, a significant loss of thrust is recorded when reaching operating temperatures.
The PRC media noted that the new (fullerene) coating would overcome this problem and reach a service life of 2 hours.

However, in reality, as it turns out, the problem with the engines of the fifth generation J-20 fighters is far from being solved. And Chinese journalists were clearly in a hurry to pass off wishful thinking.



It turned out that when the temperature reaches 1200 degrees (close to the working temperature) in Celsius, the pressure in the aircraft engine chamber contributes to a sharp increase in the sorption properties of the used fullerene films. The film begins to either actively absorb the working substance (fuel mixture), or contribute to its thickening with the course of a chemical reaction. In both the first and second cases, the fuel efficiency in the WS-10 and WS-15 engines decreases. The reduction in thrust is no longer 25%, as it was before the use of fullerene films, but approximately 2 times lower. But in this case, excessive consumption of fuel was stated, which poses a new problem for Chinese engineers and scientists.

Recall that at the moment, the PLA Air Force supplies J-20 fighters mainly with Russian-made engines, which the PRC is trying to replace with its own - with suitable characteristics.
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    1. -50
      6 2021 June
      It's not a problem. Russia will sell again for the words of friendship. It always worked like that.
      1. +38
        6 2021 June
        Why then hasn't Russia sold it yet? and did not sell when it was very tight with money and sales. Now it seems not quite on the porch, so what to sell right now?
        1. -7
          7 2021 June
          Yes, all the documentation has been there for a long time, just specialists, competencies, technologies are not enough. But this is a matter of time, and, knowing the Chinese, the time is not long. Their smartphones, robotic vacuum cleaners, and other equipment with Wi-Fi, + our "smart" comments will eventually do the trick ..))
          1. +1
            8 2021 June
            Before writing at least a minimal understanding of the topic, the Chinese have been fighting with turbine blades for about 30 years and all by - they buy from us
        2. 0
          8 2021 June
          Fuflen he is so Fuflen !!! laughing
      2. 0
        6 2021 June
        Probably it is necessary to buy a license for the production of AL-41 from Russia.
      3. +19
        6 2021 June
        Yes, something has not been sold so far, but for 25 years the Chinese have been trying to replace the AL-31F. Already they have AL-41, but still nothing. Are you a provocateur, or China? But Ukraine could sell, but something does not grow together. They have no engine of this class. With the afterburner, they only do one - the Chinese on the L-15.
        1. +10
          6 2021 June
          Quote: URAL72
          Yes, something has not been sold so far, but for 25 years the Chinese have been trying to replace the AL-31F.

          So the license was bought, but the technology of blades and coatings was not. So they compose - now super-materials, now fullerenes, and each time they are better than the world level ... And they stopped STARTING at the factories of their specialists. In any case, in Perm and Ufa - for sure. There are acquaintances there.
          1. +5
            6 2021 June
            And Russia does not sell a lot of things to China.
            From what China really wants to buy.
            There is nothing personal here. Business only.
            But if the States continue to be rude,
            then unpleasant surprises are possible.
            Type of assistance to the PRC in the creation of an early warning system.
            And this will be a very serious answer. hi
            1. 0
              6 2021 June
              Quote: Alex777
              But if the States continue to be rude,
              then unpleasant surprises are possible.
              Type of assistance to the PRC in the creation of an early warning system.

              So we are already building an early warning missile system for China, for several years now. Maybe they've finished building already. In response, we received a military-space radio component base.
              But with aircraft engines, our position is tough. For the last application for AL-31F engines, we have linked a positive solution to this issue with another batch of Su-35, which China was offered to order.
              China snorted and started a media company about its engine success.
              But, as we can see, everything turned out to be a mess. Perhaps for now.
              If China seven years ago (or later) supported our military shipbuilding with the supply of engines (turbines, diesel, power plant included) ... but instead, China began to close accounts for our companies and these companies survive ... closed credit lines .. But they could have replaced Western banks in our market ... since our banks are prohibited from lending to their industry.
              But China did exactly the opposite - it supported the sanctions against Russia.
              But with a special desire, China will be able to get engines - under tied contracts.
        2. Eug
          0
          6 2021 June
          And that one is a generation "younger" of Al-31, not to mention Al-41 and "ed.30".
          1. 0
            6 2021 June
            In place of China, I would buy for all Su30 J10, J20 - Al41 ..... and in parallel would make my own turbojet engine. This is the fastest way and the fighters are armed with energy already now.
            1. Eug
              0
              6 2021 June
              Very reasonable, most likely (judging by the idea of ​​a "single"
              engine for various types of Su VKS RF), no major alterations are required. But whether critical technologies will be sold together, even with a large number of engines, is a question.
              1. 0
                7 2021 June
                China buys thousands of Boeing and Airbasy citizenship and for a long time ... (like the Russian Federation) and there is no modern turbojet engine yet. In the Russian Federation, this is 50/50 Sam, and then not copied, but created with the help of France. And only now PD-14 looms
                1. 0
                  7 2021 June
                  PD-14 is already there, but there is nothing to install, the plane is not ready.
      4. +2
        6 2021 June
        The Russian Federation will always sell ready-made Al31 or Al41 .....
        1. +2
          6 2021 June
          No problem with planes
    2. +12
      6 2021 June
      What a very expensive sandpaper turned out! laughing
      1. +3
        6 2021 June
        publications in the Chinese press
        And I was proud of them! Deceivers!
        There is a good proverb: don't say gop ..... sad
    3. +1
      6 2021 June
      Well, the Ukrainian specialists didn’t help? What kind of engine is this not sawed? I don’t know who to turn to? lol
      1. +8
        6 2021 June
        Patience, only patience ... Ukrainian "specialists" will finish Sapsan, Thunder, Bogdana, and they will finish building a wall on the border. And then with all the might of the Ukrainian military-industrial complex they will make a technological breakthrough. Why are there engines for the Chinese! Immediately they will land on Mars, or even on Alpha Centauri!
        1. +2
          6 2021 June
          Quote: Borz
          Immediately they will land on Mars, or even on Alpha Centauri!

          It's okay to go to Mars, but you can go to Alpha Centauri only at night, it's a star!
          1. +2
            6 2021 June
            Well, there is how it will turn out, the pioneers ...
        2. 0
          7 2021 June
          There would have been a breakthrough in the engines, we would have read it here, it was immediately clear that the tiger was a paper one, I was more interested in the QB type about their firearms, and there were already a lot of weapons about them.
      2. +3
        6 2021 June
        Quote: tralflot1832
        Well, the Ukrainian specialists didn’t help?

        Didn't you fit the grease for the blades?
    4. +5
      6 2021 June
      The stone flower does not come out.
      1. +14
        6 2021 June
        It turns out, but it hurts SOOO.
        1. +1
          7 2021 June
          Quote: A009
          It turns out, but it hurts SOOO.

          And it was not fucking to swallow it.lol
    5. +2
      6 2021 June
      Well, they said that only Russian journalists and representatives of some companies were running in front of the locomotive.
    6. 0
      6 2021 June
      Russian proverb: "don't say oops until you jump over."
    7. +1
      6 2021 June
      New problem with Chinese WS-15 aircraft engines: Fullerene membranes lead to excessive fuel consumption
      ... It is clear that everything is not so simple and until the victorious result, oh how far.
    8. 0
      6 2021 June
      And they tried it with a file, in Nikolaev such masters were making a steam ship from a diesel locomotive, the "Russian miracle" was called a BMRT of the "Altai" type.
      1. +3
        6 2021 June
        Quote: tralflot1832
        And we tried with a file

        The file is for promotion. Let them start with the file.
    9. +1
      6 2021 June
      It was obvious ! However, even a simple expression of thoughts, not to mention a deeper justification, caused a hint of a severed head for sanity. Let's see how arrogance and an outright lack of understanding of the processes will force the designers to punch a concrete wall with their foreheads.
    10. +1
      6 2021 June
      Judging by the hums in the article, using analytical and telepathic abilities, as well as on the basis of experience in working with carbon materials :) I assume that a plant for chemical carbon deposition was created in the combustion chamber and on the turbine blades. A layer of carbon grows on the blades; fullerenes are an excellent substrate for this. If you work with the modes, then you will get carbon nanotubes.
    11. +4
      6 2021 June
      The creation of an aircraft engine is not "mobile phones" using stolen technologies to rivet)))
    12. +1
      6 2021 June
      I wrote before that this WJ-15 will not work as it should with fulleron films. And now they have no where to steal technology.
    13. 0
      6 2021 June
      You should have addressed Kiiv with a problem earlier, but now that's it, the strawberries have gone and the designers are all in Poland in the beds ..
    14. +1
      7 2021 June
      Fullerene membranes lead to excessive fuel consumption ...
      "And how nice! How fresh the roses were!" ... request

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