Preliminary Design of Ocean Thermal Energy Conversion (OTEC) Cold Water Pipe (CWP)

摘要

In this present paper, the required thickness of OTEC CWP for 100MW-net is estimated based on the maximum bending capacity and the acceptance of the developed design cases have been verified using DNV-RP-C202.From the numerical simulation using Ansys interface, it can be concluded that the effect of the ring stiffener will be optimum if the ring stiffener is effective enough to change the buckling mode from local buckling mode to column buckling mode. Otherwise, if the buckling mode remains the same, the effect of the ring stiffener is not so significant.From section 6, the most preferable case is case number 4. Thus the pipe will have 14.3 cm of thickness including 13cm of core and 1.4cm of the laminate layer. In case of the ring stiffener, the current result is not sufficient enough to decide its distance. More studies are required especially on the production and installation of OTEC CWP.