Current Science

Open Access Open Access  Restricted Access Subscription Access

Studies on Nonlinear Behaviour of Floating Components for Offshore Desalination Plants


Affiliations
1 National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
 

The article discusses the design considerations for components which exhibit nonlinear phenomenon for an offshore floating platform housing energy and desalination plants. It gives an account of specific cases where such analyses were carried out. National Institute of Ocean Technology, MoES has been working in the area of developing large capacity offshore-based desalination plant. Various platform configurations were studied for housing the plant components. First case study deals with the numerical investigation of an inter-connection system between two floating platforms, semi-submersible and spar platform. Second case describes the methodologies for studying the effects of crucial vortex-induced vibration for estimating the fatigue life of the long-sea-conduit independently and when bundled.

Keywords

Cold Water Pipe, Inter-Connection, Vortex-Induced Vibration.
User
Notifications
Font Size

  • Vijily, B., Dynamic analysis of interconnected offshore structural systems subjected to random waves. Ph D thesis, Indian Institute of Technology Madras, 1997.

  • Chakrabarti, S. K., Response due to moored multiple structure interaction. Mar. Struct., 2001, 14, 223–258.

  • Derstine, M. S. and Brown, R. T., A compliant connector concept for the mobile offshore base. Mar. Struct., 2000, 13, 399–419.

  • Li, X., Yang, J. and Xiao, L., Research on motion response of soft yoke mooring FPSO system. In Proceedings of Sixteenth International Offshore and Polar Engineering Conference, San Francisco, California, USA, 2006.

  • Sreekumar, P., Numerical investigations of a flexible interconnection system between a semi-submersible and a spar platform, M Tech thesis, IIT Madras, 2014.

  • Alam, M. M., Sakamoto, H. and Zhou, Y., Determination of flow configurations and fluid forces acting on two staggered circular cylinders of equal diameter in cross-flow. J. Fluids Struct., 2005, 21, 363–394.

  • Jaya Chandran, S. R., A CFD study on vortex induced vibration of circular conduits, M Tech thesis, IIT Madras, 2017.

  • Chakrabarti, S. K., Hydrodynamics of Offshore Structures, WIT Press, 1987.

  • DNV-OS-F201, Dynamic risers-rules and standards, October 2010.

  • DNV-RP-C205, Environmental conditions and environmental loads, October 2010.


Abstract Views: 419

PDF Views: 136




  • Studies on Nonlinear Behaviour of Floating Components for Offshore Desalination Plants

Abstract Views: 419  |  PDF Views: 136

Authors

Ashwani Vishwanath
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
Purnima Jalihal
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India
Abhijeet Sajjan
National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, India

Abstract


The article discusses the design considerations for components which exhibit nonlinear phenomenon for an offshore floating platform housing energy and desalination plants. It gives an account of specific cases where such analyses were carried out. National Institute of Ocean Technology, MoES has been working in the area of developing large capacity offshore-based desalination plant. Various platform configurations were studied for housing the plant components. First case study deals with the numerical investigation of an inter-connection system between two floating platforms, semi-submersible and spar platform. Second case describes the methodologies for studying the effects of crucial vortex-induced vibration for estimating the fatigue life of the long-sea-conduit independently and when bundled.

Keywords


Cold Water Pipe, Inter-Connection, Vortex-Induced Vibration.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi11%2F1694-1701