scholarly journals Hybrid-Powered Marine Vessels

2010 ◽  
Author(s):  
Susan Hayman ◽  
John Stratton
Keyword(s):  
Natural Gas ◽  
Pressure Vessels ◽  
Marine Vessels

In discussing the use of Natural Gas as a fuel for Marine use, there are two aspects that require examination, firstly, the gas handling, process and on land/vessel storage considerations, and secondly, the pressure vessels that will store the fuel. Paper published with permission.

Risk-Based Technology Method for the Safety Assessment of Marine Compressed Natural Gas Fuel Systems

2001 ◽  
Vol 38 (03) ◽  
pp. 193-207
Author(s):  
Robb Wilcox ◽  
Mark Burrows ◽  
Sujit Ghosh ◽  
Bilal M. Ayyub
Keyword(s):  
Natural Gas ◽  
Alternative Fuels ◽  
New Technologies ◽  
Formal System ◽  
Diesel Oil ◽  
Coast Guard ◽  
System Safety ◽  
Compressed Natural Gas ◽  
Marine Application ◽  
Marine Vessels

The introduction of alternative fuels (other than diesel oil or gasoline) for some commercially operated marine vessels presents a problem to marine regulators and designers since accepted standards and U.S. Coast Guard policy have not been established. Establishing safe design criteria is a common problem with the introduction of new technologies, novel concepts, and complex systems. In order to determine design safety for novel marine concepts such as compressed natural gas (CNG) fuel, a formal system safety approach may be used. Risk-based technologies (RBT) provide techniques to facilitate the proactive evaluation of system safety through risk assessment, risk control, risk management, and risk communication. The proposed outfitting of a CNG fuel system on the Kings Pointer training vessel is discussed as a specific marine application of CNG fuel and an appropriate situation for applying system safety techniques.

Discussion Paper on the Use of FPC’s C240 Integrated Compressed Natural Gas (ICNG) Storage Units and TransCanada’s CNG Storage System for the Storage of Natural Gas As a Fuel for Marine Applications

2010 ◽  
Author(s):  
David Lawrence ◽  
Gregory Cano ◽  
Steven Williams
Keyword(s):  
Natural Gas ◽  
Storage System ◽  
Gas Storage ◽  
Design Development ◽  
Discussion Paper ◽  
Compressed Natural Gas ◽  
Review Comment ◽  
Final Design ◽  
Marine Applications ◽  
Marine Vessels

This discussion paper is based on a preliminary design and is not to be construed or interpreted as being a suitable basis for adoption as a final design for natural gas storage facilities or marine vessels. The gas storage concepts were developed as a basis for project budgeting, further design studies such as HAZID/HAZOP/FEMA, and for review/comment by Classification Societies and Regulatory Authorities as a precedent to further design development. The contents, comments and opinions contained herein are proprietary to Floating Pipeline Company Incorporated and TransCanada. Paper published with permission.

Case Study on the Effect of Mean Stress on Ground Storage Vessels for Fuelling

2019 ◽  
Author(s):  
Daniel T. Peters ◽  
Myles Parr ◽  
Matthew Naugle
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Storage ◽  
Pressure Vessels ◽  
Lower Pressure ◽  
Mean Stress ◽  
Gaseous Fuels ◽  
Design Pressure

Abstract The use of high-pressure vessels for the purpose of storing gaseous fuels for land based transportation application is becoming common. Fuels such as natural gas and hydrogen are currently being stored at high pressure for use in fueling stations. This paper will investigate the use of autofrettage in high pressure cylinders and its effects on the life of a vessel used for gas storage. Unlike many high-pressure vessels, the life is controlled by fatigue when cycled between a high pressure near the design pressure and a lower pressure due to the emptying of the content of the vessels.

Research on Corrosion and Monitoring Methods of Pressure Vessels in Sulfur-Containing Natural Gas Purification Plants

2012 ◽  
Vol 549 ◽  
pp. 655-659
Author(s):  
Jian Feng Shang ◽  
Gang Tian ◽  
Yuan Zhi Liu ◽  
Guo Qing Xiao ◽  
De Cai Long ◽  
...  
Keyword(s):  
Weight Loss ◽  
Natural Gas ◽  
Pressure Vessels ◽  
Corrosion Monitoring ◽  
Gas Purification ◽  
Monitoring Methods ◽  
Advantages And Disadvantages ◽  
Natural Gas Purification ◽  
Slice Method ◽  
Sulfur Containing

Pressure vessels in high sulfur-containing natural gas purification plants are likely corroded in acid media. Corrosion monitoring and control must be carried out to ensure safety and efficiency of purification system. So corrosion cause and service characters of pressure vessels in the purification plants were analyzed in this paper. The factors which influence pressure vessels corrosion include acid gas load, flow rate, phase state, temperature, heat-stable salts and degradation products. Then adaptability, advantages and disadvantages of the methods such as weight loss hanging slice method, electrochemical monitoring, ultrasonic thickness measurement, etc. were also analyzed in the paper. The results show that current on - line corrosion monitoring methods are hard to be applied in high sulfur-containing natural gas purification plants. Weight loss hanging slice method is an effective approach for pressure vessels corrosion monitoring. The data obtained are reliable and the investment is relatively lower. Based on characteristics of different technology units, corrosion coupon monitoring scheme is established. The research result provides a solid base for ensuring safe operation of high sulfur-containing natural gas purification plants.

Design of the Thickness of Hot Corner Protection of LNG Storage Tank

2011 ◽  
Vol 347-353 ◽  
pp. 3777-3780
Author(s):  
Xu Dong Cheng ◽  
Xing Ji Zhu ◽  
Wen Shan Peng
Keyword(s):  
Thermal Stress ◽  
Natural Gas ◽  
Thermal Protection ◽  
Pressure Vessels ◽  
Wall Structure ◽  
Concrete Wall ◽  
Theoretical Derivation ◽  
Finite Element Software ◽  
Special Cases ◽  
Liquid Natural Gas

Large LNG storage tanks as liquid natural gas cryogenic pressure vessels, the cold between the tanks and concrete wall is very important. In some special cases, ultra-low temperature liquefied natural gas will enter the second vessel, then the wall will produce thermal stress, at this time the main factor to control the temperature difference between inside and outside the wall is the hot corner protection. This paper introduces the general international structure of tank insulation, and then through the theoretical derivation, gives the insulating layer, hot corner protection and formula for calculating temperature distribution of exterior wall. On this basis, gives the formula for calculating the external thermal stress and thermal protection angle is given control of the thickness of the design equation. Finally, using ADINA finite element software to establish insulation and the wall temperature field model and calculate the heat - wall structure coupled thermal stress, and through the analysis of a project example to verify the correctness of the formula. The results show that in the leakage state, temperature stress of external wall is large, indicating that it is significant to design the thickness of hot corner protection.

Remote ops: a new way of delivering traditional field operations

2016 ◽  
Vol 56 (2) ◽  
pp. 572
Author(s):  
Michael Little
Keyword(s):  
Natural Gas ◽  
Real Time ◽  
Joint Venture ◽  
Video Conferencing ◽  
Clean Energy ◽  
Pressure Vessels ◽  
Maximum Efficiency ◽  
High Tech ◽  
Minimal Impact ◽  
Gas Fields

Santos GLNG is a joint venture that supplies clean energy to global markets. The business produces natural gas from Queensland’s coal seams in the Bowen and Surat basins and converts it to liquefied natural gas (LNG) at its new facility on Curtis Island, near Gladstone, prior to export. From its inception, Santos GLNG has been committed to minimal impact and maximum efficiency, with safety before all else. Delivering on this commitment, in the context of a vast geographic footprint, required innovation—a new way of delivering traditional field operations. As a result, Santos GLNG successfully developed a high-tech $10 million operations centre that delivers the ability to centrally monitor the production and progress of its assets in the gas fields in real-time, 24 hours a day, seven days a week. Located in Brisbane (more than 450 km away from the gas fields), the centre comprises 90 large screens, one of the world’s largest touch screens, six simultaneous video conferencing facilities, and 30 km of wiring. Key benefits include: Real-time monitoring of the performance and production of all assets in the field, including compressors, pumps, wells, flow lines, pressure vessels, and pipelines. Remote start-up or shut-down capacity, which ensures facilities operate to the highest standards of production. Virtual collaboration and knowledge sharing across multiple sites and assets through the latest teleconference and video conferencing technology. In 2015, the operations centre successfully took control of a range of newly commissioned assets. Most notably, this included Santos GLNG’s three new major compression hubs, which together at nameplate capacity will be able to process 555 terajoules of gas per day.

Design and Testing of Large Diameter Composite Reinforced Pressure Vessels for Offshore Gas Applications

2004 ◽  
Author(s):  
John Wolodko ◽  
Tom Zimmerman ◽  
Gary Stephen ◽  
Greg Cano ◽  
Norman Fawley
Keyword(s):  
Natural Gas ◽  
Gas Transport ◽  
Large Diameter ◽  
Pressure Vessels ◽  
Compressed Natural Gas ◽  
Reinforced Composite ◽  
Design And Testing ◽  
Stranded Gas ◽  
Steel Design ◽  
Composite Steel

Bulk transportation of compressed natural gas is becoming a viable and flexible option for moving stranded gas reserves to existing or remote markets. One such technology that is currently being developed for this application is the Gas Transport Module (GTM™). Gas Transport Modules are large diameter, high pressure, fiber reinforced composite/steel pressure vessels intended for the mobile transport of natural gas on a variety of carriers including ships, barges, trucks and trains. The purpose of this paper is to discuss recent work concerning the design and testing of these large diameter, composite pressure vessels. The advantages of the proposed hybrid composite/steel design for offshore use are discussed. An overview of current standards development, specialized analysis methods and testing requirements is also provided.

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