Journal of international maritime safety, environmental affairs, and shipping最新文献

Comparative safety analysis of engine room fires with different marine fuels of MGO, LPG and H2 MGO、LPG、H2船用燃料机舱火灾安全性对比分析

Journal of international maritime safety, environmental affairs, and shipping Pub Date : 2023-10-02 DOI: 10.1080/25725084.2023.2269346

Vadym Nechyporenko, Byongug Jeong

引用次数: 0

Maritime rights, obligations, and liabilities of intelligent ships from the perspective of risk distribution 从风险分配看智能船舶的海事权利、义务和责任

Journal of international maritime safety, environmental affairs, and shipping Pub Date : 2023-10-02 DOI: 10.1080/25725084.2023.2264566

Linlin Chen

引用次数: 0

A field-study of the feasibility of the use of biodiesel in the marine industry 在海洋工业中使用生物柴油的可行性实地研究

Journal of international maritime safety, environmental affairs, and shipping Pub Date : 2023-10-02 DOI: 10.1080/25725084.2023.2267905

Ha-Seek Jang, Jun-Soo Kim, Min-Ho Lee, Cheol-Ho Baek, Jang-Won Seo, Yong-Gyu Na, Jae-Hyuk Choi

{"title":"A field-study of the feasibility of the use of biodiesel in the marine industry","authors":"Ha-Seek Jang, Jun-Soo Kim, Min-Ho Lee, Cheol-Ho Baek, Jang-Won Seo, Yong-Gyu Na, Jae-Hyuk Choi","doi":"10.1080/25725084.2023.2267905","DOIUrl":"https://doi.org/10.1080/25725084.2023.2267905","url":null,"abstract":"The International Maritime Organization is making multiple efforts to reduce greenhouse gas and air pollutant emissions. However, it is difficult to achieve this because of the absence of technological developments. Consequently, there is an urgent need to develop alternative fuels. In this study, marine gas oil and biodiesel were blended at ratios of 0%, 5%, 10%, and 20% to assess their applicability to ships (Component analysis, metal corrosion, and storage stability) and potential for emission reduction (engine performance, environmental effects, and engine durability). The composition of the test fuels meet the ISO 8217:2017 standard. Metal corrosion was insignificant for carbon steel, iron, aluminum, and nickel, but not copper. Storage stability showed no sludge generation or fuel separation, although biodiesel experienced some discoloration owing to its high oxygen content. Engine performance showed no significant differences between marine gas oil and biodiesel. Emissions of NOx increased with higher biodiesel blending ratios, whereas SOx, CO, CO2, and Total hydro carbons decreased. Engine durability was good throughout the 160 hours sea trial. This study demonstrated that even at a 20% biodiesel blending ratio exceeding the 7% ratio suggested by ISO 8217:2017, can be safely used as a long-term marine fuel.","PeriodicalId":477166,"journal":{"name":"Journal of international maritime safety, environmental affairs, and shipping","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135901974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Promoting Circular Economy in the shipping industry 推进航运业循环经济

Journal of international maritime safety, environmental affairs, and shipping Pub Date : 2023-10-02 DOI: 10.1080/25725084.2023.2276984

Nitin Agarwala

引用次数: 1

CFD simulation of gas dispersion at hydrogen bunkering station 加氢站气体扩散的CFD模拟

Journal of international maritime safety, environmental affairs, and shipping Pub Date : 2023-10-02 DOI: 10.1080/25725084.2023.2261350

Suwon Choi, Byongug Jeong

{"title":"CFD simulation of gas dispersion at hydrogen bunkering station","authors":"Suwon Choi, Byongug Jeong","doi":"10.1080/25725084.2023.2261350","DOIUrl":"https://doi.org/10.1080/25725084.2023.2261350","url":null,"abstract":"This research is to simulate hydrogen leakage at bunker station with various wind directions and velocities using Computational Fluid Dynamics (CFD) model to understand hydrogen dispersion behaviour and provide general guidelines to establish risk prevent measures and mitigations at early design phase. This case study examines hydrogen plume behavior in various wind conditions, focusing on horizontal and vertical dispersion as well as mean travel distance over time. Regardless of wind direction, hydrogen disperses in alignment with the wind. As time progresses post-leakage, the plume elongates in the wind's longitudinal direction and contracts vertically, maintaining a consistent shape. Wind direction and the direction of hydrogen release notably influence dispersion patterns. When the wind aligns vertically with the release point, hydrogen plume distance increases with higher wind speeds. Conversely, when wind opposes the release direction, plume length tends to decrease at high speeds. Intriguingly, the maximum distance of 27.85 m occurs when wind and leak directions are orthogonal at 180°. For wind speeds up to 5 m/s, all wind directions show a similar increase in plume distance. However, at 7 m/s, scenarios with horizontal, perpendicular wind directions exhibit a distinct change. Analyzing hydrogen dispersion aids in establishing safety criteria and risk mitigation distances for hydrogen leakages in bunker stations during the early design phase.","PeriodicalId":477166,"journal":{"name":"Journal of international maritime safety, environmental affairs, and shipping","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135900486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The causes and responses to cargo hold fire accidents in RoRo ships using AcciMap 用AcciMap分析滚装船货舱火灾事故的原因及应对措施

Journal of international maritime safety, environmental affairs, and shipping Pub Date : 2023-10-02 DOI: 10.1080/25725084.2023.2274227

Kyunghwan Kim, Hyeonmin Jeon

{"title":"The causes and responses to cargo hold fire accidents in RoRo ships using AcciMap","authors":"Kyunghwan Kim, Hyeonmin Jeon","doi":"10.1080/25725084.2023.2274227","DOIUrl":"https://doi.org/10.1080/25725084.2023.2274227","url":null,"abstract":"The recent string of cargo hold fire incidents on RoRo ships represents one of the most challenging types of ship fire accidents. The densely stowed vehicle cargo loading structure and large volume of RoRo ship cargo holds are factors that complicate firefighting efforts. In addition, vehicle cargoes have a higher likelihood of self-ignition compared to other types of cargo and produce dense smoke when a fire occurs. Combustible materials inside vehicles can also contribute to the spread of fires after they start. Particularly, the recent increase in demand for electric vehicles calls for changes in how we respond to potential cargo hold fires on RoRo ships and heightens the risk of such incidents. In this study, we analyzed major domestic and international RoRo cargo hold fire incidents using AcciMap, a system analysis method. Through this analysis, we identified needs for improved management of vehicle cargo conditions, responses to fixed firefighting systems and system inspections, as well as improvements to fire detection systems. By using a systems analysis approach, we were able to identify areas for improvement needed by ships, ports, governments, shippers, and shipping companies.","PeriodicalId":477166,"journal":{"name":"Journal of international maritime safety, environmental affairs, and shipping","volume":"29 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135901816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0