A steam turbine that drives a generator is usually only about 30% efficient.  Based on the Brayton-cycle system, developed by George Brayton more than 100 years ago, an air or steam system heats the air or water in a confined space and then releases the compressed air or steam to turn a turbine generator. The […]

Wind speed primarily determines the power generated by a wind turbine. On a wind farm in which the turbines experience the same wind speeds but different “shapes”, most easily seen as turbulence affecting the wind profile, the turbines will produce different amounts of power. Lawrence Livermore National Laboratory scientist Sonia Wharton and colleague Julie Lundquist […]