This research aims to achieve three objectives: 1) To study the preparation process for entering the dry dock for M.T. Tsurusaki, 2) To investigate the issues concerning the preparation for entering the dry dock for the repair of M.T. Tsurusaki, and 3) To enhance the efficiency of operations on M.T. Tsurusaki in terms of reducing costs and time in conducting tasks. A qualitative research approach was employed, involving a population group of 15 ship crew members from both the deck and engine departments, to prepare for the study, focus group discussions and brainstorming sessions were conducted. Moreover, the lean system was introduced to eliminate waste in the work process. Process changes resulted in a reduction of waiting time by streamlining tasks that could be done simultaneously, without compromising safety standards. Based on the experience of ship crew members, the introduction of the lean system led to a reduction in working hours from 156 to 120, a decrease of 36 hours. Fuel consumption in the studied process decreased from 441.59 MT to 303.32 MT, a reduction of 138.27 MT. Calculating operating costs based on a fuel price of 585 USD/MT in May 2023, fuel expenses during operation decreased from 258,330.15 USD to 177,442.20 USD, resulting in a cost reduction of 80,887.95 USD. In summary, this research demonstrates an effective approach to enhancing work efficiency on large oil tankers while reducing fuel consumption, aligning with the stated objectives.
Amnuaycheewa et al. (Fri,) studied this question.
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