New-generation gas turbines announced by GE power systems
GE Power Systems has announced the company`s next two generations of gas turbines. The new `G` and `H` gas turbines represent exciting new technologies designed to bring combined-cycle power plants to new levels of efficiency, output and environmental performance while, the company says, also reducing plant operating costs. The G and H machines share much of the same advanced aircraft engine technologies to achieve high levels of efficiency and performance. However, while the G machines use sophisticated air-cooling techniques for the turbine components, the H machines will use a closed-loop steam-cooling system that boosts combined-cycle power output and net thermal efficiency and reduces NO{sub x} emissions. The G machines are expected to reach 58% net thermal efficiency in combined-cycle operation, while the H machines are expected to break the 60% barrier in net thermal efficiency. The H turbine is a new platform of combined-cycle technology that integrates the gas turbine, steam turbine and generator into a seamless system, where each component is optimized for the highest level of performance. The centerpiece of the new technology platform is an advanced closed-loop steam-cooling system that permits higher firing temperatures while retaining combustion temperatures at levels consistent with low emissions.
- OSTI ID:
- 62446
- Journal Information:
- Diesel and Gas Turbine Worldwide, Journal Name: Diesel and Gas Turbine Worldwide Journal Issue: 5 Vol. 27; ISSN DGWODS; ISSN 0278-5994
- Country of Publication:
- United States
- Language:
- English
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