The duct keel is a plated box/tunnelled keel allowing passage right forward. It provides additional buoyancy, together with a through passageway for cables and pipelines running in the fore …

Jan 29, 2020 · It extends from the collision bulkhead till the forward of engine room bulkhead. It is used as a passage for the fuel oil, steam and ballast piping to the double bottom tanks. Where …

Aug 10, 2020 · Duct Keel. Duct keel is used in double bottom hull ships and consists of solid plates joint together into a box shape and it allows pipes and other required services to pass …

Duct Keel > This is also termed as Box keel because it allows pipes and other services throughout the keel length. > This is fitted from the forward of the engine room bulkhead to the aft of the …

The inner bottom and bottom shell within the duct keel are to be suitably stiffened with primary stiffening in the transverse direction, whilst the continuity of the floors is maintained. Access to …

There are three main types of keels: the flat plate keel which is most common, the bar keel typically used on smaller vessels, and the duct keel which features two center girders and is …

Aug 21, 2018 · Its function is to carry pipelines through the forward length of the vessel. There is no need for an aft ‘duct keel’ because the same function is available with the shaft tunnel …

Oct 25, 2024 · Duct Keel: Duct keels are also known as “box keels”. Throughout the length of the keel, it allows pipes and other services. These keels are mounted between the front portion of …

Jul 14, 2019 · Duct Keel: Duct keel is a hollow structure which consists of two longitudinal girder and solid plates and is welded to form box type structure, which is generally provided in double …

assembly is the duct keel that means this one - the one which is encircled (Refer Slide Time: 00:58). That particular construction is referred to as duct keel construction.