Manufacture of a mini dredger for sustainable sedimentation in the jetty area using a parent design approach method

Abstract

PLTU Nagan Raya is currently experiencing a sedimentation issue in the jetty area, which has resulted in a decrease in barge loading capacity from 3,000 MT/trip to 1,400 MT/trip. This situation has hindered the ability of barges to dock properly at the jetty, thereby disrupting plant operations. This research aims to design and develop a mini dredger ship utilizing the Parent Design Approach method as a technical solution to address the shallowing, necessitating dredging actions. The decision to implement a mini dredger is based on its capability to operate under the jetty without interrupting ongoing operations. The dimensions of the mini dredger ship are 5 x 3 meters, and it is equipped with a Suction Head (Hs) measuring 6 meters, a Discharge Head (Hd) of 15 meters, and a Flow Rate of 50 m3/hour. Additionally, it features a 6-inch pipe and a robust 34 HP diesel engine to power the suction pump, allowing for the efficient extraction of sand material through the suction pipe, which is then discharged via the exhaust pipe. The design has been developed using the SolidWorks application. This mini dredger is expected to effectively mitigate silting, restore barge loading capacity to 3,000 MT/trip, and ensure uninterrupted operations in the Nagan Raya PLTU jetty area.