이미지 분석을 통한 메탄올 이중 연료 추진선 연료 저장 탱크에 적용된 징크 도장 성능 평가 방법 기초 연구

• Published in: 大韓造船學會 論文集 Vol. 62; no. 2; pp. 67 - 76
• Main Authors: 심천식, 위성국, 유재훈, 김주인, 노희창, 정대성, 김광옥, 김철훈, 조현덕, Chunsik Shim, Sungkuk Wi, Jaehoon Yoo, Juin Kim, Heechang Noh, Daesung Jung, Kwangok Kim, Chulhoon Kim, Hyundeok Cho
• Format: Journal Article
• Language: English; Korean
• Published: 대한조선학회 01.04.2025
• Subjects: 조선공학
• ISSN: 1225-1143; 2287-7355
• DOI: 10.3744/SNAK.2025.62.2.67

This study presents a method for evaluating the performance of zinc coating on methanol dual-fuel ship fuel tanks using image analysis. Methanol, a promising fuel with minimal environmental impact, is highly corrosive, necessitating the implementation of effective coating solutions.The experiment involved tensile tests on zinc-coated specimens at displacements of 3mm, 5mm, 10mm, 20mm, and 30mm, in addition to salt spray, microscopic crack inspections and Image analysis. Image analysis was employed to reduce evaluator bias and quantify damage patterns. The results demonstrated that, up to 10mm displacement, no significant damage was observed; however, cracking was evident at 20mm and above. A 10% failure threshold for coating performance was proposed.This method offers a reliable approach to assessing zinc coating durability in methanol-fueled ships and can be applied to other marine coatings.