Kawasaki Heavy Industries, Ltd. has developed, designed, and built a liquefied hydrogen (LH 2 ) carrier (LH 2 C) in collaboration with Shell and ClassNK for a pilot hydrogen energy supply chain project conducted by HySTRA (CO 2 -free Hydrogen Energy Supply-Chain Technology Research Association) and promoted by the New Energy and Industrial Technology Development Organization in Japan. This pilot LH 2 C, the Suiso Frontier , debuted in 2021 to demonstrate a series of operational stages ranging from the initial cooling down/loading/unloading of LH 2 to sea-going operations using a newly built pilot LH 2 terminal in Kobe, Japan. The first international sea-going voyage by the Suiso Frontier between Japan and Australia was accomplished at the start of 2022. This study intends to describe briefly the ship design focusing on an overview of safety design and risk assessment results, and to provide an update on the demonstration progress describing the operational phase conducted as a series of demonstration tests highlighting the extended gas trial program conducted in Japan and the data-gathering exercise for the Suiso Frontier .
{"title":"Suiso Frontier, the First LH2 Carrier — Demonstration of Technologies and Operational Phase","authors":"Yukichi Takaoka, Kentarou Mizumukai, Yuichi Kameno","doi":"10.17736/ijope.2023.jc899","DOIUrl":"https://doi.org/10.17736/ijope.2023.jc899","url":null,"abstract":"Kawasaki Heavy Industries, Ltd. has developed, designed, and built a liquefied hydrogen (LH 2 ) carrier (LH 2 C) in collaboration with Shell and ClassNK for a pilot hydrogen energy supply chain project conducted by HySTRA (CO 2 -free Hydrogen Energy Supply-Chain Technology Research Association) and promoted by the New Energy and Industrial Technology Development Organization in Japan. This pilot LH 2 C, the Suiso Frontier , debuted in 2021 to demonstrate a series of operational stages ranging from the initial cooling down/loading/unloading of LH 2 to sea-going operations using a newly built pilot LH 2 terminal in Kobe, Japan. The first international sea-going voyage by the Suiso Frontier between Japan and Australia was accomplished at the start of 2022. This study intends to describe briefly the ship design focusing on an overview of safety design and risk assessment results, and to provide an update on the demonstration progress describing the operational phase conducted as a series of demonstration tests highlighting the extended gas trial program conducted in Japan and the data-gathering exercise for the Suiso Frontier .","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135889852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.17736/ijope.2023.jc888
Hong Xiong, Yuxiang Chen, Hui Cheng, Hong Zhu, Chunliang Yu, Guodong Zheng, Yiyang Xing
Research on the motion of particles in fluid conveying is significant for the mechanism study of the hydraulic collecting process in deep-ocean mining. Experiments were conducted in a water tank to measure the translational and rotational motion of spherical particles by developing a spherical detector with a built-in three-dimensional acceleration microsensor and a three-dimensional microgyroscope. The three-axis linear acceleration and angular velocity can be measured and stored by the detector. The attitude angle, defined as the spatial rotation of the detector coordinate system relative to the laboratory coordinate system and described via the Euler angle, is obtained with a quaternion algorithm and a Kalman filter. The method is validated with a 50 mm diameter spherical object by three respective tests. Finally, the detector is tested as a tracer particle in hydraulic collecting. Findings indicate that the method is capable of tracing the detailed behaviors of particles in hydraulic collecting.
{"title":"Translational and Rotational Motion Measurement of a Spherical Particle in Hydraulic Collecting","authors":"Hong Xiong, Yuxiang Chen, Hui Cheng, Hong Zhu, Chunliang Yu, Guodong Zheng, Yiyang Xing","doi":"10.17736/ijope.2023.jc888","DOIUrl":"https://doi.org/10.17736/ijope.2023.jc888","url":null,"abstract":"Research on the motion of particles in fluid conveying is significant for the mechanism study of the hydraulic collecting process in deep-ocean mining. Experiments were conducted in a water tank to measure the translational and rotational motion of spherical particles by developing a spherical detector with a built-in three-dimensional acceleration microsensor and a three-dimensional microgyroscope. The three-axis linear acceleration and angular velocity can be measured and stored by the detector. The attitude angle, defined as the spatial rotation of the detector coordinate system relative to the laboratory coordinate system and described via the Euler angle, is obtained with a quaternion algorithm and a Kalman filter. The method is validated with a 50 mm diameter spherical object by three respective tests. Finally, the detector is tested as a tracer particle in hydraulic collecting. Findings indicate that the method is capable of tracing the detailed behaviors of particles in hydraulic collecting.","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.17736/ijope.2023.jc887
Zhigang Wang, Zhongya Xia, Yingyuan Tian
When evaluating the shooting accuracy of underwater attack weapons against the surface target, we need to transform various coordinates into a unified coordinate. Typically, the surface target track uses the geodetic coordinate and under-water weapon trajectory uses the navigation coordinate. Therefore, trajectory data in the navigation coordinate need to be converted to the geodetic coordinate. Using an inertial measurement unit can only get the trajectory data in the navigation coordinate. Because of the Doppler effect, acoustic reverberation, range ambiguity, and low data refresh rate, the methods based on the cooperative acoustic beacon or the baseline positioning cannot meet the trajectory measurement requirements of the underwater high-speed attack weapon. In this paper, a method combining baseline positioning with an inertial measurement unit is proposed to solve the problem of trajectory measurement in the geodetic coordinate of the underwater high-speed weapons. The system composition, working principle, and measure results are introduced, and the measure errors are analyzed.
{"title":"Research on the Trajectory Measurement Method of Underwater High-speed Attack Weapons in the Geodetic Coordinate","authors":"Zhigang Wang, Zhongya Xia, Yingyuan Tian","doi":"10.17736/ijope.2023.jc887","DOIUrl":"https://doi.org/10.17736/ijope.2023.jc887","url":null,"abstract":"When evaluating the shooting accuracy of underwater attack weapons against the surface target, we need to transform various coordinates into a unified coordinate. Typically, the surface target track uses the geodetic coordinate and under-water weapon trajectory uses the navigation coordinate. Therefore, trajectory data in the navigation coordinate need to be converted to the geodetic coordinate. Using an inertial measurement unit can only get the trajectory data in the navigation coordinate. Because of the Doppler effect, acoustic reverberation, range ambiguity, and low data refresh rate, the methods based on the cooperative acoustic beacon or the baseline positioning cannot meet the trajectory measurement requirements of the underwater high-speed attack weapon. In this paper, a method combining baseline positioning with an inertial measurement unit is proposed to solve the problem of trajectory measurement in the geodetic coordinate of the underwater high-speed weapons. The system composition, working principle, and measure results are introduced, and the measure errors are analyzed.","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.17736/ijope.2023.jc894
Konstantin A Kornishin, Yaroslav O Efimov, Petr A Tarasov, Roman B Guzenko, Yevgeny U Mironov, Viktor S Porubaev
This article considers the relationships among different morphometric parameters (sail height, keel depth, and cross-sectional area) of ice ridges studied in 2013–2015 and 2017 in the Kara, Laptev, and East Siberian Seas. The size of the ice blocks that compose these ridges is the focus of this research. Different scenarios of ridge formation depending on different thicknesses of ice fields are considered, and the main scenarios of ridging in the Arctic areas are defined. Correlations between morphometric values for homogeneous, heterogeneous, and composite ridges are determined. A classification of ice ridges according to the relative thickness of the ice fields involved in their formation is proposed.
{"title":"Parameters of Ice Blocks and Their Relationship with the Structure of Hummocks in the Kara, Laptev, and East Siberian Seas","authors":"Konstantin A Kornishin, Yaroslav O Efimov, Petr A Tarasov, Roman B Guzenko, Yevgeny U Mironov, Viktor S Porubaev","doi":"10.17736/ijope.2023.jc894","DOIUrl":"https://doi.org/10.17736/ijope.2023.jc894","url":null,"abstract":"This article considers the relationships among different morphometric parameters (sail height, keel depth, and cross-sectional area) of ice ridges studied in 2013–2015 and 2017 in the Kara, Laptev, and East Siberian Seas. The size of the ice blocks that compose these ridges is the focus of this research. Different scenarios of ridge formation depending on different thicknesses of ice fields are considered, and the main scenarios of ridging in the Arctic areas are defined. Correlations between morphometric values for homogeneous, heterogeneous, and composite ridges are determined. A classification of ice ridges according to the relative thickness of the ice fields involved in their formation is proposed.","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Floating ice is one of the potential hazards that threatens the safety of seaport operations in winter. In this study, the monitoring data of the ice conditions around the Port of Yingkou in the ice zone of China were analyzed. The results showed a significant negative correlation between changes in cargo throughput and the magnitude level of sea ice. When the ice thickness is more than 15 cm, it can have serious impacts on port operations unless tugboats and icebreakers are deployed to remove sea ice from the channel.
{"title":"Analysis of Sea Ice Hazard Factors and Influence on Seaport Operations in the Bohai Sea","authors":"Xueqin Liu, Yujin Zhang, Danzhu Yu, Shuai Yuan, Wenqi Shi, Zhenhua Chen","doi":"10.17736/ijope.2023.ik10","DOIUrl":"https://doi.org/10.17736/ijope.2023.ik10","url":null,"abstract":"Floating ice is one of the potential hazards that threatens the safety of seaport operations in winter. In this study, the monitoring data of the ice conditions around the Port of Yingkou in the ice zone of China were analyzed. The results showed a significant negative correlation between changes in cargo throughput and the magnitude level of sea ice. When the ice thickness is more than 15 cm, it can have serious impacts on port operations unless tugboats and icebreakers are deployed to remove sea ice from the channel.","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.17736/ijope.2023.mmm30
Yi Zhang, N. Ma, X. Gu, Qiqi Shi
{"title":"Surrogate Model Based on an MLP Neural Network and Bayesian Hyperparameter Tuning for Ship Hull Form Optimization","authors":"Yi Zhang, N. Ma, X. Gu, Qiqi Shi","doi":"10.17736/ijope.2023.mmm30","DOIUrl":"https://doi.org/10.17736/ijope.2023.mmm30","url":null,"abstract":"","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45262963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.17736/ijope.2023.sv03
M. Benoit, W. Benguigui, M. Teles, Fabien Robaux, C. Peyrard
Breaking wave impacts on coastal protections are simulated using a multi-phase 3D CFD (Computational Fluid Dynamics) software, named neptune cfd, focusing on a particular lay-out composed of a plane slop-ing bottom and a vertical wall with a recurved parapet on top of it. The goal is to assess the capabilities and performances of the solver to simulate the propagation of regular waves over the variable bathymetry (in-cluding shoaling and nonlinear e ff ects), the depth-induced breaking process and the interaction of these breaking waves with the vertical wall. We simulate two experiments involving similar geometry of the seabed and vertical wall, performed at two di ff erent scales (1:8 for case A and 1:1 for case B), as described in Ravindar et al. (2021). After a descrip-tion of the CFD solver and its numerical methods, the model is applied to the simulation of the two cases involving extremely high impact pressure peaks at some places of the wall surface. Numerical results are compared with experimental measurements regarding both free surface elevation and pressure on the wall. In general, a good agreement of the simulations with the measurements is obtained for free surface elevation, including the breaking zone. The time history of pressure variations dur-ing wave impacts is correctly reproduced. Although the measured maximum impact pressure peaks exhibit some variability among successive wave impacts, the order of magnitude of these maximum peaks is well predicted for case A. For case B, however, the maximum impact pressures are somewhat underestimated by the current simulations, requiring further tests and improvements. This work is a contribution to the bench-mark “Comparative Study on Breaking Waves Interactions with Vertical Wall attached with Recurved Parapet in Small and Large Scale” set up for the ISOPE’2022 conference.
{"title":"Two-phase CFD Simulation of Breaking Waves Impacting a Coastal Vertical Wall with a Recurved Parapet","authors":"M. Benoit, W. Benguigui, M. Teles, Fabien Robaux, C. Peyrard","doi":"10.17736/ijope.2023.sv03","DOIUrl":"https://doi.org/10.17736/ijope.2023.sv03","url":null,"abstract":"Breaking wave impacts on coastal protections are simulated using a multi-phase 3D CFD (Computational Fluid Dynamics) software, named neptune cfd, focusing on a particular lay-out composed of a plane slop-ing bottom and a vertical wall with a recurved parapet on top of it. The goal is to assess the capabilities and performances of the solver to simulate the propagation of regular waves over the variable bathymetry (in-cluding shoaling and nonlinear e ff ects), the depth-induced breaking process and the interaction of these breaking waves with the vertical wall. We simulate two experiments involving similar geometry of the seabed and vertical wall, performed at two di ff erent scales (1:8 for case A and 1:1 for case B), as described in Ravindar et al. (2021). After a descrip-tion of the CFD solver and its numerical methods, the model is applied to the simulation of the two cases involving extremely high impact pressure peaks at some places of the wall surface. Numerical results are compared with experimental measurements regarding both free surface elevation and pressure on the wall. In general, a good agreement of the simulations with the measurements is obtained for free surface elevation, including the breaking zone. The time history of pressure variations dur-ing wave impacts is correctly reproduced. Although the measured maximum impact pressure peaks exhibit some variability among successive wave impacts, the order of magnitude of these maximum peaks is well predicted for case A. For case B, however, the maximum impact pressures are somewhat underestimated by the current simulations, requiring further tests and improvements. This work is a contribution to the bench-mark “Comparative Study on Breaking Waves Interactions with Vertical Wall attached with Recurved Parapet in Small and Large Scale” set up for the ISOPE’2022 conference.","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49523503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.17736/ijope.2023.sv05
Qian Li, S. Yan, Yi Zhang, Ningbo Zhang, Q. Ma, Zhihua Xie
{"title":"Numerical Modelling of Breaking Wave Impacts on Seawalls with Recurved Parapets Using qaleFOAM","authors":"Qian Li, S. Yan, Yi Zhang, Ningbo Zhang, Q. Ma, Zhihua Xie","doi":"10.17736/ijope.2023.sv05","DOIUrl":"https://doi.org/10.17736/ijope.2023.sv05","url":null,"abstract":"","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47058663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.17736/ijope.2023.sv04
S. Chen, X. Hu, Fuyin Cui, W. Wang
{"title":"Numerical Comparative Study on Violent Wave Interactions with a Curved Seawall","authors":"S. Chen, X. Hu, Fuyin Cui, W. Wang","doi":"10.17736/ijope.2023.sv04","DOIUrl":"https://doi.org/10.17736/ijope.2023.sv04","url":null,"abstract":"","PeriodicalId":50302,"journal":{"name":"International Journal of Offshore and Polar Engineering","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48841568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：