Doosan’s 7-year engineering project estimated at over $850 million USD to develop a large advanced class gas turbine has seen its first sale to power a domestic 500MW plant rated at over 60% combined cycle efficiency.
Korea Western Power Company is reported to have negotiated with Doosan back in December 2017 for equipment supply of its first production unit. To power a cogeneration facility in Gimpo City in Gyconggi province.
Construction is scheduled to begin later this year for completion by the end of 2022 and start of commercial combined cycle operation in 2023.
New DGT6-300H gas turbine is rated at 270MW simple cycle baseload output and better than 40% simple cycle efficiency on natural gas fuel. Design features a 24 to 1 comressor pressure ratio and over 1500°C firing temperature (2732°F).
Final assembly of the first unit was completed in September 2019, Doosan reports. Upon completion of extensive in-house testing now underway, the unit will be shipped to KOWECO for installation at the Gimpo site.
Doosan Heavy Industries & Construction plans on developing a larger follow-up gas turbine model (380MW) incorporating evolutionary engineering improvements to broaden its product portfolio and ability to meet market requirements for larger unit output.
At the smaller end of the power spectrum, the company says it also plans on introducing a 100MW sized model designed to back up lapses in renewable energy sources and cover peak load demand.