Authors : Mohadeseh Miri and Farhad Vahidinia
Abstract: In this study, effects of the dust exist in the winds blowing in Sistan region on lifetime AlCu Mg1 4 aluminium alloy are discussed. This alloy can be used in manufacturing blades of a low-power wind turbine. In collision with this alloy and the resulted impact this dust can and corrode their surface and cause an early erosion. Here, the goal is to study the effects of the impact resulted from dust particles collision on the lifetime of this alloy. This research has been done as two stages of experimental study. In the first stage, a setup is designed and manufactured that simulates the condition of high-speed winds like that blows in the study region, together with the related dust. These conditions have been imposed on the lab samples made of aluminium alloy. In the next stage, these samples are put into a fatigue testing machine and while imposing stress, lifetime rate of the samples is calculated. Then, by Analysis of Variance Method, decreased rate of the lifetime of the sample is numerically calculated according to the conditions existing in Sistan region and compared with the lab results. Numerical results have a good agreement with the experimental results. The most decrease in the lifetime caused by the dust in the winds blowing in Sistan region has been 8.5% which given high potential of wind blowing in this area, strengthens the incentive to build a wind farm in Sistan region.
Mohadeseh Miri and Farhad Vahidinia, 2015. Study of Dust Effect in Winds of Sistan Region, Iran, on Decreased Performance and Lifetime of AlCu4 Mgl Alloy. Journal of Engineering and Applied Sciences, 10: 1-6.