Abstract
The modern offshore patrol vessel is designed to carry out various missions in the management of economic exclusion zones, thus having some speed of service. For example, the speed for slow patrol is 10 knots, regular patrols 18 knots and chasing 22 knots. This condition requires a flexible propulsion system, which is combination of mechanical and electrical propulsion system. The application of this propulsion system to the OPV can increase the load factor of the propulsion system, resulting in lower fuel consumption than when using a mechanical propulsion system. Based on feasibility analysis results, the choice of combination of mechanical and electrical propulsion system is more advantageous than mechanical propulsion system, although investment and maintenance cost is higher. Therefore, patrol boats should use combination of mechanical and electrical propulsion system.
Highlights
Offshore patrol vessels (OPV) have multiple functions, namely military and civilian
The OPV vessel operates under various speed conditions, i.e. surveillance (10 knots), patrols (18 knots), and interception (22 knots)
The combination of diesel mechanic or electric (CODAE) propulsion system is a dynamic combination of diesel mechanic propulsion (DMP) system and diesel electric propulsion (DEP) systems
Summary
Offshore patrol vessels (OPV) have multiple functions, namely military and civilian. OPV's weapon system is not as sophisticated as the KCR ship. The OPV vessel has operational areas in the exclusive economic zone (EEZ) to monitor illegal activities, such as infiltration of foreign troops, illegal fishing, pirate handling, smuggling, and illegal immigrants, handling of marine accidents / oil spills, border controls and other similar activities [2]. Based on this function, the OPV vessel operates under various speed conditions, i.e. surveillance (10 knots), patrols (18 knots), and interception (22 knots). This paper presents a configuration layout and specification of the CODAE propulsion system applied as well as the comparison between the DMP and CODAE systems in terms of both technical and economic aspects
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