Utility Equipment: Turbine-Generators
Iowa State has four turbine-generators. These machines convert the energy in the steam into electricity. Some of the steam produces electricity first, and then is extracted from the steam turbine at 90 lbs pressure. The 90 lb steam is either sent to campus or is used to produce chilled water. As more and more 90 lb steam is extracted from the turbine-generators, the cost of electricity generated is reduced.