http://repository.stipjakarta.ac.id//handle/123456789/72 2026-11-06T20:03:01Z http://repository.stipjakarta.ac.id//handle/123456789/5756 "OPTIMALISASI PERAWATAN KOMPRESOR UDARA UNTUK KELANCARAN OPERASIONAL MESIN INDUK PADA MV MALAHAYATI BARUNA" DHAIFULLAH DJ, ALTHAF Air compressors are essential auxiliary machinery that play a crucial role in supporting the smooth operation of the main engine on board a vessel. Any disruption in the air compressor system can lead to reduced performance of the main engine starting system and may affect overall ship operations. Therefore, an optimal maintenance system is required to ensure that the air compressor operates effectively and continuously. This study aims to identify the problems occurring in the air compressor system and analyze efforts to optimize maintenance in order to improve the operational reliability of the main engine on MV. Malahayati Baruna. The research method used is descriptive qualitative, with a field study approach through direct observation, interviews, and documentation during sea practice. The results show that the main problems in the air compressor system are caused by suboptimal implementation of periodic maintenance, corrosion in several components, and lack of monitoring of the cooling and air filter systems. The proposed solutions include improving the Planned Maintenance System (PMS), conducting routine inspections, replacing worn-out components, and enhancing maintenance discipline according to the manufacturer’s manual. In conclusion, the optimization of air compressor maintenance significantly improves the reliability of the compressed air system and supports the smooth operation of the main engine on board. With a well-planned and scheduled maintenance system, the risk of operational failure can be minimized. 2025-01-01T00:00:00Z http://repository.stipjakarta.ac.id//handle/123456789/5754 Indentifikasi penurunan suhu pemanasan air lait di dalam evaporator fresh water generator (FWG) untuk keperluan di kapal lpg/c gas ares rianwary, Randy This study examines the decrease in seawater heating temperature in the Fresh Water Generator (FWG) evaporator on the LPG/C Gas Ship Ares, which results in decreased freshwater production. The purpose of this study was to identify the causes of the decrease in heating temperature and determine its impact on FWG performance. The research method used was descriptive qualitative, with data collection techniques including observation, interviews, documentation, and literature review. Data analysis was conducted using the Fishbone Diagram method to identify the root cause of the problem. The results showed that the decrease in heating temperature was caused by the formation of scale on the evaporator and leaks in the heating pipes of the Jacket Cooling Fresh Water (JCFW) system. This condition hampered heat transfer, resulting in suboptimal evaporation and decreased freshwater production. Efforts to address this problem included chemical cleaning of the evaporator and replacing leaking heating pipes. 2025-01-01T00:00:00Z http://repository.stipjakarta.ac.id//handle/123456789/5753 Rancang Bangun Sistem Monitoring dan Alarm Getaran Pada Pompa Feed Water Boiler Kapal Berbasis Arduino Untuk Deteksi Dini Kerusakan Bearing Hariri, Syahrul The feed water boiler pump is an essential component of a ship's boiler system, responsible for continuously supplying feed water to the boiler. Bearing damage can increase vibration levels, resulting in reduced pump performance, operational disruptions, and more serious mechanical failures. Therefore, a monitoring system capable of detecting abnormal vibration at an early stage is required to prevent severe damage. This study aims to design and develop an ESP32-based vibration monitoring and alarm system for the early detection of bearing damage in a ship's feed water boiler pump. The proposed system utilizes an MPU6050 vibration sensor to measure vibration levels, an ESP32 microcontroller for data processing, an I2C LCD to display measurement results, a buzzer as an alarm indicator, and the Blynk application for real-time remote monitoring. The research adopted the Research and Development (R&D) method, which includes the stages of system design, prototype development, testing, and performance evaluation. The results of this study indicate that the vibration monitoring system for the ship's feed water boiler pump based on the ESP32 microcontroller and the ADXL345 sensor was successfully designed and functioned properly. The system was capable of detecting changes in bearing vibration levels in real time, displaying the measurement results on both the LCD and the Blynk application, and classifying vibration levels into four categories: Normal, Warning, High, and Very High. The buzzer alarm was automatically activated when the vibration value reached or exceeded the predetermined threshold of 6.5 mm/s, providing an early warning of potential bearing damage. Therefore, the developed system is feasible for use as a vibration monitoring and early bearing damage detection tool for ship feed water boiler pumps, while also supporting the implementation of predictive maintenance to improve the reliability of ship machinery systems. 2025-01-01T00:00:00Z http://repository.stipjakarta.ac.id//handle/123456789/5752 "MENINGKATKAN PERAWATAN MARINE GROWTH PREVENTION SYSTEM (MGPS) UNTUK MENUNJANG KINERJA SISTEM PENDINGIN AIR LAUT DI KAPAL SS.TRIPUTRA" ARIF MUTOLIB, MUHAMMAD The Marine Growth Prevention System (MGPS) is an important system on board ships that functions to prevent marine organism growth, scale buildup, and corrosion in the sea water cooling system to maintain optimal engine performance. This study aims to analyze the causes of salt crystal deposits and marine growth accumulation on MGPS components and to evaluate the effect of Planned Maintenance System (PMS) implementation on the performance of the sea water cooling system on board SS. Triputra. The research method used was descriptive qualitative with a case study approach through direct observation, interviews, documentation, and literature study during sea practice. The results showed that the accumulation of salt crystal deposits and marine growth on the anode and cathode plates of the MGPS caused the electrolysis process to run inefficiently, resulting in decreased sodium hypochlorite production. In addition, the implementation of the Planned Maintenance System (PMS), which was not yet optimal, caused several MGPS components to not receive periodic maintenance, thereby accelerating scale buildup and reducing the efficiency of the sea water cooling system. Improvement efforts were carried out through cleaning MGPS components, performing routine blowing and backwash, and increasing discipline in the implementation of PMS. Therefore, improving MGPS maintenance has a direct effect on the effectiveness of the sea water cooling system and supports the smooth operation of the ship. 2025-01-01T00:00:00Z