By Mark E. Vogler
Freezing water that was intended to cool a steam turbine at the WIN Waste Innovations plant contributed to the shutdown of a steam turbine at the plant last month. “On Jan. 9, 2025, an equipment malfunction caused the steam turbine to trip, resulting in an excess emission event on one boiler that we reported to our regulatory agencies,” WIN Waste Innovations Facility Manager Elliott Casey said this week.
“We monitor emissions in a multitude of ways and in this case the 4-hour average of CO emissions was 111ppm with a permit limit of 100 ppm,” Casey said.
“Facility operators took immediate action to restore normal operations. The drag valve and silencer worked as designed during the turbine trip and venting and the turbine was back online within two hours,” he said.