Title: Cleveland State University wind turbines at Progressive Field are overachievers
Source: The Plain Dealer
Author: Karen Farkas
Date: Sept 3, 2012
The wind turbines attached to that distinctive plastic corkscrew atop Progressive Field are overachievers.
The four mounted turbines are generating more than 4.5 times as much energy than if the turbines were standing alone, according to data collected by Cleveland State University.
[...]In a quarterly technical performance report submitted to the U.S. Department of Energy on July 30, [Majid Rashidi, the chairman of CSU's department of engineering technology who developed the system] reported that at a wind speed of 11 miles per hour the tower’s four turbines generated 1,288 watts of energy, compared to a combined 200 watts of energy that would be generated by four stand-alone turbines, as calculated by turbine manufacturer [6.44 times as much as conventional turbines].
A wind speed of 18 miles per hour generated 6,143 watts of energy from CSU’s tower structure, compared to 1,412 from four stand-alone turbines. The report said the results, from April 1 through June 30, show the average electrical power generated by the spiral turbine was 4.64 times as much as conventional turbines.
“That is what the spiral does to the wind,” Rashidi said. “It funnels more air.”
h/t Anonymous tips
Published: September 10th, 2012 at 4:56 pm ET
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