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    Domestic production of marine engines for Russian Navy

    kvs
    kvs

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    Post  kvs on Wed Jan 13, 2021 12:09 am

    Rodion_Romanovic wrote:I thought that the M90 were a relatively new development from the 2000s (joint development from Zorya and Saturn).

    Anyway they are good enough for the moment.

    After all the GE LM2500 used in a lot of western navy ships is a marine derivative of the CF6 aircraft engine, which first ran in 1971. Of course it was modernised many times, but the original design is from an engine 50 years old.

    If Russia will need more modern naval engines in the future, they will be able to do a naval derivative of the many new aircraft engines they are developing now, e.g the PD series or the modernised NK32

    The Russian replacements for the Ukr production are by no means mere copies. They have higher operating temperatures and thus
    thermodynamic efficiency. Some BS article posted on this forum claimed they were of similar efficiency. But this article is not
    the Holy Bible of God's Own Truth (TM).

    Funny how all of these discussions never cover actual efficiency numbers but fixate on feature gimmicks.

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    mnztr

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    Post  mnztr on Wed Jan 13, 2021 1:57 am

    Rodion_Romanovic wrote:

    Almost all naval gas turbine are aero derivative. Also because it is extremely expensive to design and develop a brand new engine,  especially if for a small number of engine that will be produced.

    Probably you meant the Rolls-Royce WR21, which has an intercooler and arecuperator (designed snd made by Northrop Grumman ).

    It is still  considered an aero derivative engine, anyway, as many parts are derived from those in the RB211 or trent aero engine. Anyway, it is used only in the type 45 destroyers,  apparently it was not as good as advertised or too complex and costly (and apparently also subject to some issues) as subsequent british ships use instead the MT30  (that has no recuperator), a direct naval derivative of the trent 800 (boeing 777 engine).

    And it is not true that most of the gain is made by the fan. The vast majority of the thrust comes from the fan, but without an highly efficient hot section the engine performance would be compromised.

    What I mean is that since a lot of work  has been done (and a lot of money spent) to create a new serie of efficient aero engines, a new naval gas turbine could be created from them with a reduced effort. Of course later if needed they could be also improved adding recuperator or similar, but it would be wise to use the core of one of the modern aero engine as a starting point. (NK32 or even better the PD35 after it is ready)

    Most of the gains in planes are from higher bypass ratios, the rest are from higher compression ratios mostly. Higher compression ratios can be obtained by tweaking the stages of each compressor. GE did this by adding stages to the compressor and P&W did this by spinning the compressor faster while using a geabox to lower fan speed.
    The critical issue is the turbine intake temp and cooling of turbine blades. Most of the issues with the Type 45 are to do with the integrated electrical system. The intercoolers did have some teething issues but are not a complex tech in themselves. Nothing in the recuperator system is particularly high tech.
    GarryB
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    Post  GarryB on Wed Jan 13, 2021 6:19 am

    Have read that the new machine tooling and precision CnC machines they use now lead to much better precision and accuracy while making engines of various different types that lead to improvements in performance just because they are made more precisely and air flows and part interaction is more precise with less vibration and friction so performance is improved even with older designs.
    LMFS
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    Post  LMFS on Sun Jan 17, 2021 12:07 pm

    From today's "Military Acceptance", the gearboxes gas turbines for the Golovko:

    Domestic production of marine engines for Russian Navy - Page 8 Er7CGfdW8AAxp-b?format=jpg&name=large
    Domestic production of marine engines for Russian Navy - Page 8 Er7CG5iW8AAqSKY?format=jpg&name=large
    Domestic production of marine engines for Russian Navy - Page 8 Er7CHQnXUAAs8UQ?format=jpg&name=large
    Domestic production of marine engines for Russian Navy - Page 8 Er7CHnsW8AQU8HO?format=jpg&name=large

    https://twitter.com/ilax200/status/1350730386083635200
    https://www.youtube.com/watch?v=_Sit_TvWTL0&t=951s

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    Big_Gazza
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    Domestic production of marine engines for Russian Navy - Page 8 Empty Re: Domestic production of marine engines for Russian Navy

    Post  Big_Gazza on Sun Jan 17, 2021 1:51 pm

    Eat shit, Ukronazi bastards!! Very Happy

    Zorya Mashproekt for sale. Free to a good home....
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    Yugo90

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    Domestic production of marine engines for Russian Navy - Page 8 Empty Re: Domestic production of marine engines for Russian Navy

    Post  Yugo90 on Sun Jan 17, 2021 9:52 pm

    The ukranazis are really good at fucking up their economy. How can they be so stupid to believe west will save them

    flamming_python and Big_Gazza like this post

    LMFS
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    Post  LMFS Yesterday at 1:14 am

    UEC is considering projects of two marine engines with a capacity of up to 35 thousand horsepower

    General Director of the corporation Alexander Artyukhov said that the first engine from this marine line was installed on the frigate "Admiral Golovko" in December 2020

    MOSCOW, January 17. / TASS /. The United Engine Corporation (UEC, part of Rostec) is considering two experimental design projects for the creation of marine engines with a capacity of up to 35 thousand horsepower. This was announced by the general director of the UEC, Alexander Artyukhov.

    “Today we have three target niches in terms of horsepower: from 6,000 to 27,000. Additionally, two ROC projects up to 35,000 horsepower are being discussed,” Artyukhov said in an interview with the Military Acceptance program on the Zvezda TV channel .

    According to the head of the UEC, the first engine from this naval line was installed on the frigate Admiral Golovko in December 2020.

    To avoid dependence on Ukrainian supplies, the Main Command of the Russian Navy in the early 2000s approved the "Concept for the Creation and Application of Gas Turbine Engines and Assemblies for Navy Surface Ships" and entrusted the functions of an integrated supplier to the Rybinsk NPO Saturn. Modern combat ships of the Russian Navy, in particular frigates of projects 22350 and 11356, were previously equipped with power plants of the Nikolaev Zorya - Mashproekt.

    https://tass.ru/armiya-i-opk/10478799

    22350M??

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