Dynamic Behavior of Water Intake Riser for Ocean Thermal Energy Conversion System

Authors

  • Ruslan Bukhari Ruslan Faculty of Mechanical Engineering Marine Technology Centre Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor
  • Siow Chee-Loon Faculty of Mechanical Engineering Marine Technology Centre Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor
  • Arifah Ali Faculty of Mechanical Engineering Marine Technology Centre Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor
  • Lee Kee-Quen Faculty of Mechanical Engineering Marine Technology Centre Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor
  • Kang Hooi-Siang Faculty of Mechanical Engineering Marine Technology Centre Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor

Keywords:

Water intake riser, ocean thermal energy conversion system, dynamic behavior

Abstract

Renewable energy has been regarded as an alternative to generate electricity. One of the examples for this energy is the Ocean Thermal Energy Conversion (OTEC) system which harnesses the temperature difference between sea surface and deeper ocean layer. Most research on OTEC is related to system efficiency but does not address the behavior of subsystem such as its water intake riser (WIR). Thus, this research aims to identify the dynamic behavior of water intake riser in terms of its vertical displacement and tension in order to investigate the sensitivity of key parameters of water intake riser design. The study covers the dynamic behavior of a derived mathematical model with reference to its vertical displacement and tension ratios result in which the length of the riser needs to be suitably designed particularly during the riser excitation period. A stiffer material of the riser has to be selected to obtain small vertical displacement and tension ratios while the diameter of the WIR only needs to be taken into account if the efficiency of the OTEC is of major concern. This study could aid in designing the suitable WIR to be implemented for the OTEC system.

References

Fujita R., Markham A.C., Diaz Diaz J.E., Rosa Martinez Garcia J., Scarborough C., Greenfield P., Black P. and Aguilera S.E., 2012. Revisiting Ocean Thermal Energy Conversion, Mar. Policy, 36(2): 463–465.

Etemadi A., Emdadi A., Asefafshar O. and Emami Y., 2011. Electricity Generation by The Ocean Thermal Energy, Energy Procedia, 12: 936–943.

Pelc R. and Fujita R.M., 2002. Renewable Energy from The Ocean, Mar. Policy, 26(6): 471–479.

Griffin O.M., 1981. OTEC Cold Water Pipe Design for Problems Caused by Vortex-Excited Oscillations, Ocean Eng., 8(2): 129–209.

Faltinsen O.M., 2015. Hydrodynamics of Marine and Offshore Structures, J. Hydrodyn. Ser. B, 26(6): 835–847.

Cao P., Xiang S., He J., Kibbee S. and Bian S., 2015. Advancing Cold Water Intake Riser Design through Model Test, Offshore Technology Conference, Houston, Texas, USA.

Luppi A. and Mayau D., 2014. FLNG Cold Sea Water Intake Risers, Offshore Technology Conference-Asia, Kuala Lumpur, Malaysia.

Wang J., Xiang S., Fu S., Cao P., Yang J. and He J., 2016. Experimental Investigation on The Dynamic Responses of A Free-Hanging Water Intake Riser under Vessel Motion, Mar. Struct., 50: 1–19.

Kobayashi H., 2001. The Present Status and Features of OTEC and Recent Aspects of Thermal Energy Conversion Technologies, 24th Meeting of the UJNR Marine Facilities Panel, Honolulu, USA, 1–8.

Muralidharan S., 2012. Assessment of Ocean Thermal Energy Conversion, Master Thesis, MIT, USA.

Sparks C.P., 2007. Fundamentals of Marine Riser Mechanics: Basic Principles and Simplified Analyses, PennWell Books, ISBN: 978-1-593-70070-6, Houston, Texas, USA.

Fadlan A., Aror R.D., Sugianto D.N. and Zainuri M., 2017. Monthly Variation Characteristics of Wave Height in North Sulawesi, Waste Technol., 5: 21–26.

Muzathik A.M., Wan Nik W.B., Ahmad M.F., Ibrahim M.Z., Sharuddin A.H. and Samo K.B., 2011. Ocean Wave Properties of Terengganu for Renewable Energy Potential, J. Appl. Sci., 11(11): 1895–1903.

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Published

2019-05-09

How to Cite

Ruslan, R. B., Chee-Loon, S., Ali, A., Kee-Quen, L., & Hooi-Siang, K. (2019). Dynamic Behavior of Water Intake Riser for Ocean Thermal Energy Conversion System. Jurnal Mekanikal, 41(1). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/320

Issue

Section

Mechanical

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