A Five-Year Emission Analysis of a Turkish-Flagged Bitumen Tanker after a Silicone Hybrid Antifouling Drydock Retrofit (M/T 'BIT-03', 2021–2026)
シリコンハイブリッド防汚ドック改造後のトルコ船籍ビチューメンタンカーの5年間排出分析（M/T 'BIT-03'、2021年～2026年） (AI 翻訳)
Hakan, KARACA, Hasan Bora, USLUER, Cem, GAZİOĞLU
🤖 gxceed AI 要約
日本語
トルコ船籍のビチューメンタンカーを対象に、シリコンハイブリッド防汚塗料へのドック改造前後5年間の月次運航データを分析。改造後のAERは16.4%改善し、塗料起因の削減効果は9-11%と推定。IMO 2030目標への具体的な道筋を示す実証ケース。
English
A five-year monthly analysis of a Turkish bitumen tanker shows that a silicone hybrid antifouling retrofit reduced the Annual Efficiency Ratio by 16.4%, with 9-11% attributable to the coating. The case demonstrates measurable decoupling of fuel use and CO2 emissions, offering a credible pathway toward IMO 2030 targets.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の海運業界はIMO 2030/2050目標への対応が急務であり、本ケースは実運航データに基づく削減効果の定量評価として参考になる。特に、防汚塗料のような単一技術の効果を分離評価する手法は、日本企業の環境投資の効果検証に応用可能。
In the global GX context
This case study provides empirical evidence on the effectiveness of a single-technology retrofit for shipping decarbonization, relevant to global IMO targets. The methodology for decomposing efficiency gains can inform international best practices for emissions reduction verification.
👥 読者別の含意
🔬研究者:Provides a rare longitudinal dataset and a decomposition method for isolating retrofit-attributable efficiency gains in shipping.
🏢実務担当者:Offers a concrete example of how to measure and report CO2 reductions from hull coatings, useful for sustainability reporting and IMO compliance.
🏛政策担当者:Demonstrates that single-technology retrofits can yield significant efficiency gains, supporting policy incentives for such investments.
📄 Abstract（原文）
This study presents a five-year, monthly operational analysis of a Turkish-flagged bitumen tanker (anonymised due to commercial confidentiality as BIT-03; 14,787 DWT; built 2019; scrubber-equipped) operating mainly in Mediterranean bitumen trade, aiming to be in line with the IMO 2030 decarbonisation targets. Sixty-one monthly observations from January 2021 to January 2026 are extracted from the StormGeo s-Insight platform, with emissions calculated using IMO MEPC.245(66) carbon conversion factors and the Annual Efficiency Ratio (AER) reported per MEPC.336(76). In April-May 2024 the tanker has gone through a drydock retrofit using a silicone hybrid antifouling coating (Hempel Hempaguard X7 family); the supplier’s engineering proposition was a 7.5% annual CO2 emissions reduction, which was ambitious at the time. As 2024 was not the right year to compare due to heavy hull biofouling just before the drydock, the 2025 post-retrofit calendar year was compared against 2023 (the right pre-retrofit baseline); the median monthly AER fell from 15.59 to 13.04 g CO2/(nm·DWT), a 16.4% gross reduction. Decomposing those three components — dirty pre-2024 fouling (5-6 percentage points), the hybrid silicone coating, and a post-drydock JRC eco-mode autopilot upgrade in early 2025 (~1%) — the retrofit-attributable share lies between a 9-11% band, which is in line with the supplier’s proposition. As well, during the same period, the vessel sailed 19.6% more nautical miles while its annual CO2 emissions increased by only 1.7%. The gap between fuel growth (+6.6%) and the CO2 emission increase is somehow explained by the partial bio-diesel substitution in the 2025 fuel mix (236 mt, less than 6% of annual fuel). Thus the case shows a measurable (not total decoupling) but relative decoupling of fuel consumption and emissions after a single-technology antifouling retrofit, and offers a credible pathway toward the IMO 2030 and 2050 decarbonisation targets.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/20464078first seen 2026-06-02 04:12:36 · last seen 2026-06-08 04:13:30
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。