Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes
AbstractThe section of submarine cable that is installed in enclosed J-tubes represents a possible thermal limiting point along the export circuits of offshore wind farms (OWFs). To obtain higher continuous thermal ratings for J-tube systems, a ventilated design, realized by allowing for the flow of natural wind into the J-tube through vents, is considered in this paper. To evaluate the performance of this forced-ventilation design, a coupled three-dimensional (3D) numerical model is constructed using the computational fluid dynamics (CFD) technique. The CFD method is first successfully tested through comparisons with existing methods for enclosed J-tubes. Then, the cable rating for the ventilated design is determined using the CFD model and compared with the rating for the enclosed case. The results show that the cooling effect from forced ventilation is obvious, and the cable rating could be increased by up to 27.5% for a wind speed of 10 m/s. This improvement in rating is especially significant for OWFs where the export circuit output is limited by the cable rating in enclosed J-tubes. View Full-Text
Share & Cite This Article
You, L.; Wang, J.; Liu, G.; Ma, H.; Zheng, M. Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes. Energies 2018, 11, 545.
You L, Wang J, Liu G, Ma H, Zheng M. Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes. Energies. 2018; 11(3):545.Chicago/Turabian Style
You, Lei; Wang, Jian; Liu, Gang; Ma, Hui; Zheng, Ming. 2018. "Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes." Energies 11, no. 3: 545.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.