PEMILIHAN SPESIFIKASI POMPA PADA SISTEM PERPIPAAN DOCKWELL BALLAST UNTUK PROSES UNLOADING KAPAL LCU (LANDING CRAFT UTILITY) PADA KAPAL LPD (LANDING PLATFORM DOCK)

Fathullah Inzagi; Priyo Agus Setiawan; Heroe Poernomo

Fathullah Inzagi PT. PAL Indonesia, Surabaya, Indonesia
Priyo Agus Setiawan , Politeknik Perkapalan Negeri Surabaya
Heroe Poernomo Politeknik Perkapalan Negeri Surabaya

Keywords: pump head, pump power, selection of pump specification

Abstract

Abstract – The LPD (Landing Platform Dock) ship is equipped with 2 units of LCU (Landing Craft Utility) for military troop landing missions and humanitarian rescue. The process of submerging and refloating the LCU transport deck is through the process of filling and draining seawater in the right side shipyard well water tank (s) and the left side (p). The total volume of the borehole water tank = 2131.4 is filled for sinking and draining the LCU flotation on the LPD ship. The filling and draining process takes 4-5 hours, but after the LPD ship was handed over to the Philippine Navy, there was an evaluation and request for an acceleration of the time for filling and draining the ballast tanks which was originally 4-5 hours to <3 hours with the discharge the owner wants is 900 m3/hour. obtained the design specifications for the ILNE 300/330A pump with a calculated pump head of 10.89 m and a pump power of 36.6 kW.