@Article{EE.2020.012019,
AUTHOR = {Yuhao Jia, Bin Cheng, Xiyang Li, Hui Zhang, Yinglong Dong},
TITLE = {Research on Effect of Icing Degree on Performance of NACA4412 Airfoil Wind Turbine},
JOURNAL = {Energy Engineering},
VOLUME = {117},
YEAR = {2020},
NUMBER = {6},
PAGES = {413--427},
URL = {http://www.techscience.com/energy/v117n6/40341},
ISSN = {1546-0118},
ABSTRACT = {In order to study the effect of icing on the wind turbine blade tip speed
ratio and wind energy utilization coefficient under working conditions, it is important to better understand the growth characteristics of wind turbine blade icing
under natural conditions. In this paper, the icing test of the NACA4412 airfoil
wind turbine was carried out using the natural low temperature wind turbine icing
test system. An evaluation model of icing degree was established, and the influence of wind speed and icing degree on the performance parameters of wind turbines was compared and analyzed. It is shown that icing is mainly concentrated
on the leading edge of the blade and the windward side. The icing on the leeward
surface is concentrated near the leading edge of the blade. The amount of icing
varies significantly along the direction of blade expansion, with the least amount
of ice accumulation at 0.2R, followed by 0.6R, and most at 0.95R. At the beginning of the experiment, the icy thickness at the 0.2R, 0.6R and 0.95R locations
increased at a rate of 12.03%, 8.87% and 6.00% respectively, and then the growth
rate gradually decreased and stabilized. At the same wind speed, the blade tip
speed ratio and wind energy utilization coefficient are inversely related to the
change trend of the icing degree. When the blade icing degree is 0.82%, 1.49%
and 2.73%, the maximum tip speed ratio is reduced by 7.1%, 14.1% and
21.2% and the maximum wind energy utilization coefficient is reduced by
36.3%, 51.2% and 61.6% respectively.},
DOI = {10.32604/EE.2020.012019}
}