What is Combined Cycle Power Generation?

Combined cycle power utilizes a combination of the combustion turbine (Brayton Cycle) and the steam turbine (Rankine Cycle). While the combustion turbine generator creates electricity, heat recovery steam generators (HRSG) repurpose waste heat to create steam and power a turbine. This makes combined cycle power plants far more efficient than traditional fossil-fired power plants. This combination of systems using air and water as the working fluids provides efficient, reliable and economic power.

This type of power is a compliment to today’s energy market, which frequently requires plants to come online and shut down quickly. The fluctuating demand requires increased operational flexibility – critical to success. With environmental requirements continuing to change, plants are always working to improve efficiency for intermediate load operation. The focus has shifted to shorter ramp times, frequency support and reliable operation to maintain grid stabilization and achieve financial goals.

Combined-cycle power generation requires minimal design start times and stable transitions to meet financial objectives. REXA Linear and Rotary Actuators are used in a wide range of applications within these plants, including turbine bypass systems, feedwater valves, attemperators, and gas turbine retrofits. REXA Electraulic™ Actuation offers stability, high-frequency response, repeatability, set point control accuracy and low maintenance. Check out our featured applications below to learn more about our solution!

Combined Cycle Plant
Combined Cycle Turbine Bypass
Sky Vent Valve
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Industry Brochure

Read the Combined Cycle Industry Brochure
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Check out our Featured Applications