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Developed Methodology for Ship Retrofitting (Case Study: RV Baruna Jaya I)

*Dwitya Harits Waskito orcid  -  Research Center for Transportation Technology, National Research and Innovation Agency, Indonesia
Ahmad Muhtadi  -  Research Center for Transportation Technology, National Research and Innovation Agency, Indonesia
Tris Handoyo  -  Directorate of Environment, Maritime, Natural Resources and Nuclear Development Policy, Indonesia
Rio Dwi Sakti Wijaya  -  Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Indonesia
Prastya Rizky Ramadhan  -  Directorate for Research Vessel Fleet Management, National Research and Innovation Agency, Indonesia
Open Access Copyright (c) 2023 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract
Ship retrofitting is one alternative solution to extend a ship’s life. Several component replacements were performed in the retrofitting process, remodelings to the ship’s main dimension, and state-of-the-art equipment and technology were added. As one of the ships that require regular renewal, especially in research equipment, retrofit processes are often carried out on research vessels. The current problem in the retrofit process for research vessels, especially in Indonesia, is that retrofits are not carried out with established methodology and planning. Thus, some retrofit projects are limited to major repairs and do not extend the ship’s life or performance. To solve that problem, a developed methodology for ship retrofitting was proposed, which consists of selecting the ship and the type of retrofit and its components, determining retrofit requirements, and designing the ship based on the retrofit project. In the design process, a modified spiral design is explicitly used for the retrofit process with some alterations compared with the conventional one, which is focused on analyzing the suitability and availability of space, consumable and tank requirements, analysis of power requirements, risk analysis, and project execution plan. A case study of this developed methodology has been undertaken in the concept design phase of RV Baruna Jaya 1’s retrofit, and the results show that the methodology is considered helpful as an approach for ship retrofitting. Moreover, several considerations were also obtained from the concept design stage and had to be analyzed at the following design stage to meet the retrofit design requirements.
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Keywords: Ship Retrofitting;Research Vessel;Design Spiral;Dynamic Positioning;Concept Design

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