As the Cleveland Indians play their home games, an experiment in industrial design will be spinning just overhead.
The ball park is hosting a wind turbine that uses a helix-shape tower to squeeze more power out of conventional wind turbines. The structure increases the wind speed, a technique companies have long pursued to lower the cost of wind energy.
The Progressive Field installation is a prototype designed by Majid Rashidi, a professor at Cleveland State University. The 40-foot-high, 18-foot-wide helix turbine will be installed for a year for testing and is expected to generate 40,000 kilowatt-hours a year, or … Read more