Open AccessDesign and performance evaluation of a submerged floating tidal current power generation device
Author(s) -
Xu Zhou,
Dazheng Wang,
Bin Guo
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/804/3/032026
Subject(s) - marine engineering , turbine , mooring , inflow , current (fluid) , power (physics) , submarine pipeline , scale model , channel (broadcasting) , computational fluid dynamics , scale (ratio) , engineering , environmental science , mechanical engineering , geology , electrical engineering , aerospace engineering , geotechnical engineering , oceanography , physics , quantum mechanics
Due to the difficulty and high cost of offshore power supply, there are still many remote islands which have not been fully developed and utilized. In order to solve this kind of problem, a new type of marine current turbine (MCT) power generation device was designed for Tuoji Island, Changdao County, Shandong Province, which is convenient for installation and maintenance. This paper presents both the prototype design and model test verification work. Limited by the size of circulating water channel, the test model was modeled and manufactured under the scale of 3:100, which means the turbine model is not able to meet the small scale geometry similarity and gravity equivalent at the same time. A light circular plate was designed to replace the resistance of the turbine as equal by means of CFD. Then it combines the main body and the equivalent disc to complete the mooring test, observing the attitude response of the device under different angles of current. On the basis, the hydrodynamic performance of the whole device model was observed under different inflow speeds and angles. The results of the model tests indicated that the prototype is relatively stable under the design condition.