OPTIMALISASI PERAWATAN DAN KINERJA FRESH WATER GENERATOR TYPE TUBE GUNA MENUNJANG OPERASIONAL DI KAPAL CS GLORY

Abstract

"This research was motivated by a significant decline in fresh water production from the Fresh Water Generator (FWG) unit on CS. GLORY, dropping from a normal capacity of ±15 tons/day to less than 10 tons/day. This performance decline was characterized by an unstable system vacuum pressure (<70%). The purpose of this study is to analyze the factors causing condenser fouling and installation pipe leakage, as well as to identify the constraints behind the weak implementation of the Planned Maintenance System (PMS) onboard.

The research Method used is descriptive qualitative with a case study and problem- solving approach. The data analysis technique applies the Fishbone Diagram

(Ishikawa) to map out the root causes from the aspects of man, Machine, Method, and environment. Data were obtained through participatory observation of Machine ry parameters, structured interviews with ship engineers, and documentation studies of the instruction manual book, engine logbook, and the PMS system.

The results of the study indicated that the primary cause of the decline in FWG performance was mineral scale accumulation (scaling) on the condenser tubes which inhibited heat transfer, as well as air infiltration due to pinhole leaks in the outlet ejector pump pipeline installation. This issue was further aggravated by a reactive maintenance pattern driven by the heavy operational workload of the engine crew, causing PMS schedules to be bypassed. To resolve these problems, it is concluded that optimization is required through periodic chemical, scheduled pipe renewal, early leak detection utilizing the Soap Bubble Test, and standardizing performance-based maintenance via Condition Based Monitoring to ensure smooth fresh water supply operations onboard.