Flexible pipe risers are often protected from over-bending with a bend stiffener at the lower end of an I-tube in FPSO installations. Due to the high thermal resistance of the polyurethane bend stiffener, there is a potential risk for both riser and bend stiffener to exceed their temperature limits. This paper presents classical and computational fluid dynamics thermal models and analyses to confirm that free convection heat transfer from the pipe wall to the water in the gap between the pipe and bend stiffener, and buoyancy driven flow along the gap is sufficient to maintain the temperature of the pipe layers and bend stiffener within allowable values. Details of the models and solutions for an example riser with 120 °C design temperature in a Gulf of Mexico installation is presented.
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ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
June 8–13, 2014
San Francisco, California, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4547-9
PROCEEDINGS PAPER
Flexible Hybrid Reinforced Pipe-Bend Stiffener Interface Design With Optimized Thermal Performance
Amirhossein Salimi,
Amirhossein Salimi
DeepFlex Inc., Houston, TX
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Liang Yu
Liang Yu
DeepFlex Inc., Houston, TX
Search for other works by this author on:
Amirhossein Salimi
DeepFlex Inc., Houston, TX
Mark Kalman
DeepFlex Inc., Houston, TX
Liang Yu
DeepFlex Inc., Houston, TX
Paper No:
OMAE2014-24267, V06BT04A031; 10 pages
Published Online:
October 1, 2014
Citation
Salimi, A, Kalman, M, & Yu, L. "Flexible Hybrid Reinforced Pipe-Bend Stiffener Interface Design With Optimized Thermal Performance." Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. Volume 6B: Pipeline and Riser Technology. San Francisco, California, USA. June 8–13, 2014. V06BT04A031. ASME. https://doi.org/10.1115/OMAE2014-24267
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