Type 055 DDG Large Destroyer Thread

Discussion in 'Navy' started by FarkTypeSoldier, Jul 8, 2013.

  1. asif iqbal
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    asif iqbal Brigadier

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    The biggest rate increase will be 2015 to 2025

    A complete U turn on PLAN warship inventory
     
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  2. taxiya
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    taxiya Major
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    Borrowing this post to ask everyone a question.

    Wasn't it proposed and agreed by many here that there are Aux GT for electrical generation, and the exhausts are located on top of the helicopter hanger? The reason of this proposed idea was the shimmering air flow over the hanger in some side-view photo.

    But from these top view photos, there are certainly no exhausts.
     
  3. Max Demian
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    Max Demian Junior Member
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    Those claims were also based on the published info-graphics displaying what looked like a set of 3 electrical generators with accompanying GT/diesel prime movers roughly under the helo hanger. See also post: https://www.sinodefenceforum.com/type-055-ddg-large-destroyer-thread.t6480/page-438#post-476739

    But indeed, the lack of observable exhausts casts doubt on this.
     
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  4. Max Demian
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    Max Demian Junior Member
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  5. taxiya
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    taxiya Major
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    Now you mentioned it, there is no intake either. We know that those grilled openings on 055 are the intakes, so AUX GT at the front may use some of them visible on the bridge/deck floors. But there is no grilled opening anywhere around the hanger. So it is only possible that if there are AUX GTs, they would be located under the bridge.

    Besides, the location of possible exhaust is in the middle of the hanger structure, if there is pipes, it would make the hanger too small to hold any helicopter. The landing mark is a good reference for sizing the back portion of the hanger structure in the following photo.

    Here is the only top view photo showing one side of the hanger.
    101_2019 almost top side.jpg
     
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  6. Max Demian
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    Max Demian Junior Member
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    Hmm, that's a bit disappointing. We initially believed that there is ample volume to introduce redundancy and separate the power generators so that a single well placed hit doesn't take out all the electrical power generation onboard.

    While you prefer to call them auxiliary generators, I believe they are in fact the primary (and sole) electric generators.
     
  7. Bltizo
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    Bltizo Lieutenant General

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    That's because the exhausts are relatively small, and that picture is poor resolution.

    We did have clear views of the exhausts atop the helicopter hangar from a while back, I'll see if I can find the picture, but no guarantees.
     
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  8. Bltizo
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    Bltizo Lieutenant General

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    so this is one photo which shows the exhausts; we can see them aft as well as one at the front both highlighted. There was a better picture showing the aft ones of an 055 in fitting out but I can't seem to find it.

    In any case, the exhausts for those auxiliary GTs are somewhat small and not really obvious from the sides or from aerial low quality images, but they exist

    055 aux exhaust.jpg
     
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  9. Max Demian
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    Max Demian Junior Member
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    They look quite small, easily on the order of 10 times smaller than those for the main propulsion turbines. Perhaps no more than 2MW apiece. But we can't rule out diesel engines, and those have lower airflow requirements in exchange for a much larger footprint.

    I was going back through the photos trying to identify where the intakes are ... one candidate is the dark rectangle behind the decoy launchers (just behind HHQ-10).
    This launch photo has a good view of it: [​IMG]

    It can be spotted in many other photos and it does seem to resemble the dark rectangular mesh intakes amidships.
     
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  10. Max Demian
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    Max Demian Junior Member
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    Air intake candidates for the aft generator primary movers.
     

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