TY - JOUR
TI - Field performance assessment of a hydrokinetic turbine
AU - Cavagnaro, R
AU - Polagye, B
T2 - International Journal of Marine Energy
AB - A cross-flow hydrokinetic turbine with a projected area (product of blade span and rotor diameter) of 0.7 m2 is evaluated in open-water tow trials at three inflow speeds ranging from 1.0 m/s to 2.1 m/s. Measurements of the inflow velocity, the rotor mechanical power, and electrical power output of a complete power take-off (PTO) system are utilized to determine the rotor hydrodynamic efficiency (maximum of 17%) and total system efficiency (maximum of 9%). A lab-based dynamometry method yields individual component and total PTO efficiencies, shown to have high variability and strong influence on total system efficiency. The method of tow-testing is found effective, and when combined with PTO characterization, steady-state performance can be inferred solely from inflow velocity and turbine rotation rate.
DA - 2016/06//
PY - 2016
PB - Elsevier
VL - 14
SP - 125
EP - 142
UR - https://www.sciencedirect.com/science/article/pii/S2214166916300066
DO - 10.1016/j.ijome.2016.01.009
LA - English
KW - Current
KW - Cross Flow Turbine
KW - Field Data
KW - Lab Data
KW - Hydrodynamics
KW - Performance
KW - Power Take Off
ER -