Robustness and increased thickness of thermal barrier coatings (TBC) of industrial gas turbines is 'key' as the industry aims to ramp up firing temperatures and pressure ratio to boost turbine performance. "We need to spend more R&D money on TBC process robustness," Matthias Oechsner, professor for materials technology at the technical university of Darmstadt, Germany, told an industry forum in Nice today.
Alstom Power has launched a GT13E2 gas turbine upgrade, offering over 200 MW power, an additional 10% of electricity output when compared to the earlier rating. "The higher output has an increased efficiency of 38% - the best in this segment of gas turbines," Michael Ladwig, Director, Marketing & Product Management at Alstom's Gas Business said at a web conference today.
Alstom has optimized the operation concept of the KA26 combined cycle power plant for fast start-up as the French gas turbine manufacturer is focusing on the operational flexibility of its gas turbines.
“Operational flexibility is not just having a high ramp rate, rather it’s a combination of start-up and shut down times, ramp rates and efficiency at part load operations,” Michael Ladwig, Director of Marketing and Product Management for Alstom's Global Gas Business told ‘Gas-to-Power Journal’ in an interview.
Siemens has received the German Industry's Innovation Award for developing the H-Class gas turbine (SGT5-8000) with a world record efficiency of 60.75 percent. Including the test phase, development of the SGT5-8000H gas turbine "lasted a good 10 years", with investments costs at approximately one half billion euros, the Erlangen-based turbine manufacturer said.
RWE sees fossil power plants as vital partners of renewable energy sources. Quick ramp rates are vital to provide flexible backup capacity and gas-fired plants still in the lead, outperforming coal-plants. "It takes RWE only 18 minutes to ramp the output of its 876 MW Lingen combined cycle gas turbine plant up or down by 600 MW," a RWE spokesman told Gas-to-Power Journal.