- Turboden’s equipment at ERC’s Bacon-Manito plant in Philippines utilises their proprietary ORC systems.
- This system is designed to convert geothermal heat into electrical energy efficiently. In the BacMan reservoirs, geothermal water with temperatures up to 320°C is extracted from depths down to ~2,500 meters.
- There is an existing single-flash plant upstream of this new facility with significant heat remaining in downstream brine flow that was available to be utilised.
- This expansion plant utilises the hot brine water to transfer heat to double-pressure two-working fluids ORC cycle via heat exchangers. The vaporized organic fluids then drive two axial turbines connected to generators, producing electricity. Afterward, the cooled geothermal water is reinjected into the reservoir.
- Some features include: (1) separate turbines and generators, with flexible coupling to allow for modular scaling; (2) uses a superheated cycle in some applications, increasing efficiency and complexity; and (3) higher efficiency at mid-to-high geothermal temperatures.
