PERENCANAAN BALLAST PIPING SYSTEM PADA KAPAL PENUMPANG REFURBISH

Abstract

If the ship's skin (ship plate) is damaged or leaks, it will cause seawater to enter the room or
compartment of the ship. This lasts until a new balance of the ship occurs or until the ship itself sinks
due to water ingress. And also the negative stability of a ship that has negative stability does not have
the ability to straighten back, which causes the ship to tilt again and can even become upside down.
From this case, an adequate ballast system is needed. In the context of updating the ballast piping
system lines, it starts with mapping the design, including the selection of materials suitable for the fluid
in the pipe. The design must take into account compliance with class regulations, space efficiency, in
order to increase system effectiveness and reduce environmental impact. This research includes
calculating the requirements for ballast tanks, bilge line specifications, pump selection, and manual
headloss analysis. The results show that the required ballast tank volume is 462 m3, with a main pipe
diameter of 100 mm and branch pipes of 80 mm and sch 40. as well as the required pump power of 15
kW, which is calculated from the overall calculation results.