Renewable energy issues worry scientistsof the whole world, it is not surprising that so many new Don Quixotes are engaged in windmills. Only they do not fight with them, and calculate how to use their potential to the maximum.
With maximum efficiency, stand alonewind turbines located exactly in the direction of the wind. But when wind turbines are installed according to the “paling” principle, the upper air flows have to interact with those that go to the bottom, of course, quenching a part of the power. When air flows from the turbines to the generators behind them, their performance can be reduced by more than 40%. To minimize these losses, and to increase the power of wind farms and increase energy production, specialists from Stanford carried out calculations and concluded that if the turbines were turned slightly away from the wind flow, the interference would be less and the tasks would be performed.
Scientists have already proven it on computer models,but they understood that convincing results could be achieved only in field trials. But which working wind farm agrees to interrupt its activities in order to give scientists the opportunity to conduct an experiment? The wind farm in Alberta (Canada) gave consent to field testing for researchers from Stanford University, and scientists checked their calculations on it. It turned out that, due to the change in the turbine angle relative to the wind direction, the total capacity of the station increased by 47% with a low wind force. With the wind of average strength, this figure is lower, but still higher than the previous figures (7-13%). In addition, the turbine control allowed us to obtain stable volumes of electricity, not dependent on wind strength, in a daily mode.
Project Engineer Michael Howland sharedsome of his observations: “The front turbine produces less energy than expected, but we found that, due to the reduction in airflow, the turbines behind them generate much more energy.” Researchers from Stanford University have made a serious claim that the new campaign will make wind farms a stable source of electricity.
Source: [url = https: //news.stanford.edu/2019/07/01/steering-wind-power-new-direction/stanford.edu [/ url]