ECEM ZEYNEP

Modeling of Composite Structured Wind Turbine Blade with COMSOL Multiphysics Analysis

Abstract

The need for energy use is increasing day by day with the increase in the world population. To deal with this requirement has made the use of renewable energy sources inevitable. Among the most preferred renewable energy sources is wind energy. However, due to the noise and weight of wind turbine blades used in generating wind energy, the most important issue to be considered in the production of wind turbine blades is the choice of material. Therefore, composite materials were taken into account in the creation of the blades in the study. Composite materials are preferred in wind turbine blades due to both their light weight and mechanical properties.

In this study, with the help of simulation programs including computer models, it is aimed to produce more durable and long-lasting blades by considering alternative composite materials in wind turbine blades. COMSOL Multiphysics Analysis is used for computer modeling. With the help of this program, a blade stress analysis is performed where a combination of gravity-induced loads is applied and eigenfrequency analyses are performed for a series of operating speeds. Thus, a Campbell diagram is created that shows the change of eigenfrequencies with rotation speed. The Campbell diagram is a diagram that represents the vibration frequencies of a system at various operating rpms.

In this study, in the creation of the blades; all combinations of materials such as Carbon epoxy, Carbon vinylester, Carbon phenolic, Glass epoxy, Boron epoxy, Glass vinylester, Thermoset polyester, Polyvinyl Chloride, Polystyrene, Polyethyleneimine, Polyethylene Terephthalate, and Styrene acrylonitrile were used, and Campbell Diagrams are created to try to reach the most suitable blade structure(s).

Biography

Ecem Zeynep Öztürk, who was born in Ankara in 2000, has completed the Materials Science and Nanotechnology Engineering undergraduate program at TOBB University of Economics and Technology. She is currently doing her Master’s Program at TOBB University of Economics and Technology in the Department of Micro and Nanotechnology.