Steam Turbine Engineering Department,
GTCC Business Division
As awareness in environmental load reduction and energy savings increases, further improvement in power generation efficiency is required. To improve power generation efficiency, reducing leakage in steam turbines is needed. Mitsubishi Heavy Industries, Ltd. has been developing sealing mechanisms to prevent leakage for many years, and has recently developed a new high-performance seal for low-pressure turbines that significantly contributes to the improvement of the overall efficiency of steam turbines. This report presents the features of the developed high-performance ACC seal for low-pressure turbines and the results of performance verification conducted at MHI's demonstration power generation facility.
