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Volume 17, Issue 33 (5-2021)                   marine-engineering 2021, 17(33): 37-52 | Back to browse issues page

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Hasanvand E, Edalat P. Comparison of Dynamic Response of Chinese Lantern and Lazy S Riser Configurations Used in CALM Oil Terminal. marine-engineering. 2021; 17 (33) :37-52
URL: http://marine-eng.ir/article-1-857-en.html
1- Offshore Structural Engineering, Petroleum University of Technology, Abadan, Iran
2- Mechanical Engineering Department, Petroleum University of Technology, Abadan
Abstract:   (1098 Views)
The risers are one of the most important components of the CALM oil terminal during the unloading/loading operations of tankers, which are used in two common configurations, including Chinese Lantern and Lazy S. It is common to not consider the interaction between these riser configurations and the mooring system. Therefore, the purpose of this paper is to compare the permissible horizontal displacement range or SAFOP of each of these risers in interaction with the mooring system and also to compare the dynamic response of these risers under operating conditions using OrcaFlex software with Persian Gulf environmental conditions in 16 coordinate directions. The results show that the Chinese Lantern configuration performs better in terms of SAFOP than Lazy S. The results also show that in the most critical case, the maximum tension created in the PLEM is 7% higher in the riser with the Lazy S configuration than in the riser with the Chinese lantern configuration. However, the maximum bending moment created in the riser with the Chinese Lantern configuration is 73% higher than the riser with the Lazy S configuration.
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Type of Study: Research Paper | Subject: Offshore Structure
Received: 2020/09/11 | Accepted: 2021/02/14

1. Wilson J. F.,( 2003), Offshore structures (marine engineering). [DOI:10.1016/B0-12-227410-5/00512-3]
2. Liu Q., Xue H., Tang W., and Yuan Y.,(2020), Theoretical and numerical methods to predict the behaviour of unbonded flexible riser with composite armour layers subjected to axial tension, Ocean Eng, vol. 199, p. 107038. [DOI:10.1016/j.oceaneng.2020.107038]
3. Pecher A., Foglia A., and Kofoed J. P., (2014), Comparison and sensitivity investigations of a CALM and SALM Type mooring system for wave energy converters, J. Mar. Sci. Eng., vol. 2, no. 1, pp. 93-122, Feb. [DOI:10.3390/jmse2010093]
4. Rutkowski G.,(2019), A comparison between conventional buoy mooring CBM, single point mooring SPM and single anchor loading sal systems considering the hydro-meteorological condition limits for safe ship's operation offshore," TransNav, vol. 13, no. 1, pp. 187-195. [DOI:10.12716/1001.13.01.19]
5. Wang K., Er G. K., and Iu V. P., (2018) ,Nonlinear dynamical analysis of moored floating structures, Int. J. Non. Linear. Mech., vol. 98, pp. 189-197. [DOI:10.1016/j.ijnonlinmec.2017.10.025]
6. Bae Y. H., Kim M. H., and Kim H. C., (2017) ,Performance changes of a floating offshore wind turbine with broken mooring line, Renewable Energy, vol. 101. pp. 364-375. [DOI:10.1016/j.renene.2016.08.044]
7. Chuang Z., Chang X., Li C., Lu Y., and Liu S.,(2020) ,Performance change of a semi-submersible production platform system with broken mooring line or riser, Eng. Fail. Anal., vol. 118, p. 104819. [DOI:10.1016/j.engfailanal.2020.104819]
8. Olsen M. K.,( 2011) ,Estimation of annual probability of mooring line failure as a function of safety factors, Norges teknisk-naturvitenskapelige universitet, Fakultet for.
9. Wang J. and Xie B.,( 2012) ,A simplified method for predicting global motion of moored semi-submersible platforms, in Proceedings of the International Offshore and Polar Engineering Conference, , pp. 983-988.
10. Ziccardi J. J.,(1970) ,Selection of hose systems for SPM tanker terminals, in Proceedings of the Annual Offshore Technology Conference, 1970, vol. [DOI:10.4043/1152-MS]
11. Brady I., Williams S., and Golby P.,( 1974) ,A study of the forces acting on hoses at a monobuoy due to environmental conditions, in Proceedings of the Annual Offshore Technology Conference, vol. 1974-May, pp. 1051-1057. [DOI:10.4043/2136-MS]
12. Qi X., Chen Y., Yuan Q., Xu G., ( 2017) Huang, Calm buoy and fluid transfer system study, in Proceedings of the International Offshore and Polar Engineering Conference, pp. 932-939.
13. Karegar S.,(2013), Flexible riser global analysis for very shallow water, Faculty of Science and Technology, vol. Master. University of Stavanger, Norway, p. 101,.
14. Amaechi C. V., Wang F., Hou X., and Ye J.,(2019), Strength of submarine hoses in Chinese-lantern configuration from hydrodynamic loads on CALM buoy, Ocean Eng., vol. 171, pp. 429-442,. [DOI:10.1016/j.oceaneng.2018.11.010]
15. Girón A. R. C., Corrêa F. N., and Jacob B. P.,(2013), Evaluation of safe and failure zones of risers and mooring lines of floating production systems, in Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, vol. 1, p. V001T01A024.
16. Girón A. R. Cruces, Corrêa F. N., Jacob B. P., and Senra S. F.,(2012), An Integrated Methodology for the Design of Mooring Systems and Risers of Floating Production Platforms, in International Conference on Offshore Mechanics and Arctic Engineering, vol. 44885, pp. 539-549.
17. Girón A. R. C., Corrêa F. N., Hernández A. O. V., and Jacob B. P.., (2014), An integrated methodology for the design of mooring systems and risers, Mar. Struct., vol. 39, pp. 395-423. [DOI:10.1016/j.marstruc.2014.10.005]
18. Orcaflex,( 2015) OrcaFlex Manual version 9.7,. section 1;3;4;6;7.
19. OCIMF,(1977), Prediction of wind and current loads on VLCC's, in Published by Oilcompanies International Marine Forum, London, England, Printed by Witherby & Co Ltd., London, England.
20. R. P. Api.,(2008), 17B Recommended Practice for Flexible Pipe, Am. Pet. Institute, Washington, DC,.

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