Organic Rankine Cycle (ORC) Generator

A closed loop thermodynamic cycle using an organic fluid selected to develop sufficient pressure to efficiently operate a turbine at the source temperature.

Revolutionary Turbo-alternators: 

  • High speed, 45,000rpm; minimises the size
  • Gas foil bearing technology; long life with high reliability and oilless system. No bearing ancillary equipment
  • Integrated hermetically sealed turbine and alternator; eliminates potential for rotating shaft seal leaks and improved efficiency
  • Stator and bearing cooling using the working fluid; no ancillary cooling.
  • High Frequency AC alternator; single shaft with turbines eliminates coupling inefficiencies
  • Unique twin turbine minimises thrust bearing loads
  • High temp (170kW) & Low Temp (60kW) available

 

High Speed Electronic Drive (AS4777 & IEC62109 certified) :

  • Customised to gTET’s HFAC Turbo-Alternator, 750Hz.
  • Turbine control non-synchronous and independent to grid.
  • Manages regulatory requirements for grid connection
  • Provides variable speed drive for ORC pump and cooling tower pump and fan
  • Electrical load is customised in software to match the turbo-alternator performance for maximum efficiency while protecting the turbine.
  • System turn-down by 90% to match fluctuating heat source

Experienced & Capable Engineering :

System modelling tools:

  • Accurate system modelling correlated with numerous applications

Computer based Design Tools:

  • Latest CAD and CAE tools used to enable designs to be completed and verified in the virtual environment prior to fabrication and factory testing

Experienced Team:

  • Design and deliver team experienced and certified in thermodynamics, mechanical and electrical design.
  • Experienced program management and site installation team.
  • Licenced building practitioners in Queensland Australia.