As Singapore’s largest and most efficient co-generation power plant, Sembcorp Sakra was a €650 million investment. It consists of two units, equipped with a GE Frame 9FA gas turbines, an Alstom steam turbine and low NOx combustion systems. In 2014, the plant was fitted with a third unit, a CCGT-2 GT26, with an output of 400 MWe.
|Location:||Jurong Island, Singapore|
|Primary Fuel:||Natural Gas|
Significant maintenance problems were apparent with the P1 joint, silencer and P2 joint. Neither expansion joints were suitable for base loading, and required continual welding and repairing for successful and safe operation.
The DEKOMTE 3WA fabric expansion joint was selected to be capable of the high cycling requirements and the reliable operation during the remaining lifetime of the plant. DEKOMTE designed, manufactured and turnkey installed an integrated concept of frame, fabric, convectors and external insulation system. The complex frame geometry at the heart of the solution gives low fatigue stress from the thermal transients caused during cycling. The P1 joint is the transition from the hot casing exhaust diffuser to the new cold casing silencer. Both solutions were designed to integrate with the new cold casing silencer supplied and installed by Braden during the same outage.
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