DOI: https://doi.org/10.14710/kapal.v23i2.84390

OPTIMIZATION OF DOUBLE BOTTOM DESIGN IN CARGO HOLD AREAS: CASE STUDY OF TANKER WITH LENGTHS 150 M AND ABOVE

Raybonda Reinaldi Winarko  -  Department of Naval Architecture, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia, Indonesia
Berlian Arswendo Adietya scopus  -  Department of Naval Architecture, Universitas Diponegoro, Semarang, Indonesia, Indonesia
Andi Trimulyono orcid scopus  -  Department of Naval Architecture, Universitas Diponegoro, Semarang, Indonesia, Indonesia
Sunardi Sunardi scopus  -  Marine and Fisheries Faculty, Universitas Brawijaya, Malang, Indonesia, Indonesia
Stefanus Eko Wiratno scopus  -  Department of Industrial and Systems Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia, Indonesia
Ardiansyah Musa Efendi orcid scopus  -  Huawei Singapore Research Center, Singapore, Singapore
*Ardi Nugroho Yulianto orcid scopus  -  Department of Naval Architecture, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia, Indonesia
Received: 13 May 2026; Published: 3 Jul 2026.
Editor(s): Muhammad Iqbal
Open Access Copyright (c) 2026 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

The shipping industry is keep advancing to produce the most efficient ship designs, including tanker ship designs. According to MARPOL Annex 1 Regulation 19, oil tankers with a deadweight of over 600 tonnes and built after 6 July 1996 must have double side and double bottom structures. These structures are intended to prevent oil spill in the event of hull damaged. However, they significantly reduce the cargo hold volume. Therefore, the objective of this research is to optimize the cargo hold volume by optimizing the double bottom design along the cargo oil tank. One of the optimization methods that can solve this problem is the brute force search method. Unlike heuristic algorithms, it provides exact rather than approximate results, making it ideal for solving small-scale problems with shorter iteration times. In this research, the variables are the locations of two cargo landing points at each knuckle of the ship's cargo oil tank. The constraints are the regulations governing clearance, stability, freeboard, and longitudinal strength of ship. The research resulted in a new design that increased the cargo oil tank volume by 375.996 m³, equivalent to 0.865%. A new ship with the same payload can be constructed using an optimized cargo oil tank configuration, reducing both the cargo tank length and the overall ship length by 1.011 m.

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Keywords: Brute Force Search; Cargo Landing Point; Double Bottom; Optimization; Tanker

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Section: Research Articles
Language : EN
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