June 2024
The installation of the Hunter Power Project’s Fin Fan Coolers has been successful. These closed-loop cooling systems weigh 30 tonnes each and are essentially air-cooled heat exchangers (ACHE). The process fluid enters the ACHE through inlet nozzles, passes through the tube bundle, and exits through outlet nozzles, cooling down as it transfers heat to the surrounding air. The tube bundle is cooled from air forced through by fans driven via electric motors. At HPP, each gas turbine has a dedicated closed-loop cooling water system. These systems circulate demineralised water treated with corrosion-inhibiting chemicals to cool the following equipment:
- The generator
- Control oil
- Lube oil
- High-pressure purge air compressors