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Subject: "RE: Boiler Rooms Air Screens" Previous topic | Next topic
Karol_WSun Feb-12-17 02:41 PM
Member since Dec 10th 2016
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#54649, "RE: Boiler Rooms Air Screens"
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>Hi Karol.
>What you have circled on your first drawing is one wall of the
>air vent up from the boiler room. The solid line to the left
>of it is the air screen. The dashed line to the left of that
>is the actual uptake. On most drawings the air screen is more
>prominent than the uptake.
>At one point in Mr. Pounder's pg19 drawing, what he has marked
>as an air screen is just one wall of an air vent.
>I think the various parts we are looking at are:
>-The boiler room casing is part of the ship's structure. It
>starts from the outer funnel and is formed by the bulkheads
>from the fiddley top down to E deck. That deck, the bulkheads
>outside of the fan rooms, F deck, and the hull complete the
>enclosing of the boiler room.
>-Against the fore and aft walls of the casing are the draft
>air ducts down to the fan rooms and the vent air ducts back
>up. The draft duct is formed by the casing down to E deck and
>a divider down to F deck. The vent air duct is formed by that
>same divider and the divider you pointed out starting up from
>G deck. As you say it shows on the side to side cross section
>drawings but not on the fore-aft drawings so I am not sure how
>it runs. There are walkways and pipes that might interfere
>with it. It may also be part of that extra wall you pointed
>out on the side bunkers.
>-The uptake starts from the boiler front and runs in a
>streamlined shape all the way up the funnel.
>-The air screen closely encases the uptake from the top of the
>cleanout doors on the boiler front up to the fiddley top.
>Probably what we need here is an isometric drawing to sort the
>shape of the vent air duct at G deck.

Good Evening Bill.

I'm not sure if i fully understand what you wrote. But if i understand you correctly, red lines create the actual uptakes, orange are air screens, light blue is a fidley wall right on top of air screen and green is vent shaft supplying fresh air to stokehold fans.

As far as i know the boiler uptakes are some kind of double-layer structure. The actual uptake is inside the steel structure of simillar shape but bigger. The air gap between those 2 structures serves as some kind of 'air insulation' to prevent overheating the surrounding space. Correct me if what i wrote is wrong.

In term of this isometric view - i'm affraid something like this does not exist. I think we would need to create something like this by our own.



Attachment #1, (jpg file)


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Boiler Rooms Air Screens [View all] , Karol_W, Sat Feb-11-17 06:28 AM
  RE: Boiler Rooms Air Screens, Ralph Currell, Feb 12th 2017, #1
RE: Boiler Rooms Air Screens, Bill West, Feb 12th 2017, #2
      RE: Boiler Rooms Air Screens, Karol_W, Feb 12th 2017 #3
           RE: Boiler Rooms Air Screens, Bill West, Feb 12th 2017, #4

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