Dynamic Simulators

NETL AVESTAR® Team and Invensys Collaborate to Develop Dynamic Simulators for Supercritical Pulverized Coal and Natural Gas Combined Cycle Power Plants

A screen shot of the new generic supercritical once-through (SCOT) dynamic simulator/OTS.
A screen shot of the new generic supercritical once-through (SCOT) dynamic simulator/OTS.

Under Cooperative Research and Development Agreements (CRADAs), NETL’s AVESTAR Center team and Invensys Operation Management (IOM) have developed prototype dynamic simulators and operator training systems (OTSs) for a generic supercritical once-through (SCOT) pulverized coal power plant and a generic natural gas combined cycle (NGCC). Based on IOM’s DYNSIM® dynamic simulation software and InTouch® human-machine interface software, both dynamic simulators are high-fidelity, real-time training systems that will provide AVESTAR users with realistic, hands-on experience with plant operations and control, including startups, shutdowns, cycling, load following, and abnormal situation handling. Both clean fossil energy simulators are also targeted for use in carbon capture and storage (CCS) research and include process- and heat-integration connections to post-combustion CO2-capture, CO2-compression, and CO2-utilization processes.

Scheduled for deployment at the AVESTAR Center by March 2014, the new SCOT dynamic simulator/OTS is based on a forced circulation, coal-fired, balanced draft once-through furnace with spiral radiant reheat bundle. The coal system includes six (6) sets of coal silos, gravimetric feeders, and pulverizers (also called mills). Coal is delivered to the furnace through six (6) elevations of four (4) corner coal burners for a total of twenty-four (24) burners. The main steam turbine is a 3600 RPM tandem compound, single reheat unit. The turbine consist of four sections: a single flow high pressure turbine, a single flow intermediate pressure and two double flow low pressure turbines. The electrical generator converts mechanical power from the steam turbine into electrical energy for supply to the grid. The nominal rating of the steam turbine/generator unit is 660 MW. The SCOT dynamic simulator will serve as the baseline power plant model for DOE’s Carbon Capture Simulation Initiative (CCSI) aimed at accelerating the commercialization and widespread use of post-combustion carbon capture technologies at the nation’s power plants.

Contact: Stephen Zitney, 304-285-1379

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