ABSTRACT

Ship boilers are a machine that should be in every engine room regardless of the type and engine of the ship. These machines, which have more than one type and complex operations, are used for multiple purposes such as heating the ship's main engine, heating the ship's auxiliary machinery, meeting the needs of the living space heating systems or operating steam turbine pumps that can be in tankers. Due to the complex structure of steam boilers and their operation at high temperature and high pressure levels, the probability of failure of the systems is quite high. In the study, it is aimed to prioritize the faults and situations that cause steam boiler failures and affect each other, and to determine the solutions and actions to be taken by using decision making methods. In order to examine boiler systems, more than one criterion needs to be compared. In this study, Fuzzy DEMATEL (Decision Making Trial and Evaluation Laboratory) method that is one of the multi-criteria decision making methods, was used. As a result, it was revealed that the most important points of steam boilers are regular maintenance and it was found that the majority of system-related failures occur in the igniter part. According to these results, it would be useful to keep the spare parts of the igniter system on board and to inform the engine officers extra about this issue.