FEASIBILITY ANALYSIS OF REPOWERING LANDING PLATFORM DOCK CLASS WITH ELECTRIC PROPULSION MOTORS

Abstract

The Indonesian Naval War Ship of Landing Platform Dock (LPD) class is a ship that has the main task as a base ship and personnel carriers, combat vehicles, tactical vehicles, helicopters and limited medical evacuation as elements of the Navy in maintaining and upholding the sovereignty of the Republic of Indonesia. To support this, of course, LPD vessels must have reliable and strong performance and capabilities. One effort to achieve this is by repowering the propulsion system on the ship using an azipod type propulsion electric motor (PEM), so as to increase the effectiveness and efficiency of ship operations, because the use of the PEM system is a sophisticated and modern propulsion system, fuel efficient, environmentally friendly (low emissions), low noise, and low vibration. This is an important requirement to realize the LPD Indonesian Naval War Ship which is superior in carrying out operations. In this study, the author will take a case study on Indonesian Naval War Ship Banjarmasin-592 by carrying out resistance calculations, calculating total electrical power requirements, selecting prime movers, selecting diesel generators, calculating the comparison of specific fuel oil consumption (SFOC) and emissions between PEM and PDE, selection of propulsor (azipod), and redesign of engine room layout after using PEM. Based on the results of the analysis, it is known that fuel consumption and emissions from the PEM system on LPD ships for one year of operation can save fuel by 3.7% and reduce emissions by 38.5%, so as to increase endurance in carrying out shipping and reduce air pollution. In addition, in terms of room space, the application of the azipod-type PEM system is 10% more efficient and profitable because there is an elimination of several existing components of the PDE system. The planning for repowering the propulsion system is expected to be a consideration in the development of the next LPD / SSV class Indonesian Naval War Ship, as well as the PEM system can be implemented in the construction of other class Indonesian Naval War Ship.

 

Keywords: Azipod, LPD, PEM, Repowering, SFOC.