Analisis Penurunan Produksi Air Tawar untuk meningkatkan performa Fresh Water Generator Di MV Glovis Diamond

Abstract

This study examines the decline in freshwater production in the Fresh Water Generator (FWG) on the MV Glovis Diamond. The Fresh Water Generator is a critical auxiliary device on board the ship, producing freshwater from seawater to meet operational and crew needs. The problem is the decline in freshwater production, resulting in suboptimal production. This study aims to identify the factors causing the decline in freshwater production in the Fresh Water Generator and the ef orts taken to address this issue. The research method used is a qualitative descriptive method using a fishbone diagram. Data collection was conducted through observation, interviews, documentation, and literature review during sea practice on the MV Glovis Diamond from August 2024 to August 2025. The results indicate that the decline in freshwater production in the Fresh Water Generator was caused by several factors, including corrosion of the ejector nozzle, damage to the orifice in the feed water pipe, salt scale buildup on the evaporator, and dirt buildup on the condenser. These factors hinder the evaporation and condensation processes, resulting in a decline in freshwater production. Ef orts to address these issues include routine maintenance, cleaning the evaporator and condenser, replacing damaged components, and conducting inspections according to the procedures in the instruction manual. With regular maintenance and repairs, the Fresh Water Generator can return to optimal performance, ensuring the ship's fresh water needs are met and supporting smooth ship operations.