Alstom, a global leader in the supply of equipment and services for power generation, has engaged AWMA to supply diversion gates for Keppel Energy in Singapore.
Following a signed contract with Keppel Merlimau Cogen Pte Ltd (KMC), Alstom is providing the entire plant and all associated equipment, for the €300 million project. Alstom’s combined cycle technology, is among the most efficient and reliable technologies currently available.
AWMA has successfully delivered water control infrastructure for three sites within the power plant.
Two sites required stainless steel (grade 316) stopboards of up to 6m high and 4m wide whilst the third site required a 4m x 3m bulkhead.
The water control gates will divert water flow from the turbines, providing isolation and the mitigation of tidal waters for maintenance purposes.
AWMA also supplied two lifting frames with a working load limit of up to 6000kg and two aluminium storage racks.
The custom designed stopboards feature rollers allowing the immersion of gates during a hydrodynamic flow of 4.3 cumecs.
All three sites control water which has passed through the turbines and is therefore of an extremely high temperature. In combination with the sea water in the outfall channel, the environment is highly corrosive requiring the inclusion of cathodic protection on the gates and frames. Once complete, the new power plant will increase KMC’s production capacity, strengthening their position as one of Singapore’s main energy providers (approximately 10% of the country’s capacity for electricity generation).