OpFlex Cold Day Performance

The OpFlex 7FA Cold Day Performance solution was specifically developed to increase unit output and improve heat rate at compressor inlet temperatures of less than 59°F (15°C). Cold Day Performance increases F-class gas turbine capacity and exhaust energy, a particularly beneficial feature for combined-cycle operations.

Historically, the F-design required reduced firing temperatures below 59°F (15°C) to remedy higher emissions and dynamics levels caused by limited combustor operability in colder inlet temperatures. The OpFlex platform removes this restriction, and provides unsuppressed base-load firing temperatures during colder inlet temperatures, while maintaining low emissions and dynamics levels.

Cold Day Performance benefits:

• Simple-cycle users can expect to increase output by up to 5MW
• Maintain emissions levels while increasing capacity, and improving heat rate
• Units with inlet chillers can expect up to 1.5MW of incremental output at typical chiller operating conditions (about 50°F [10°C])