Abstract:
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.
