Salzburg Absorption Heat Pump

This demo is part of the lead-project ThermaFLEX that has been completed successfully. Download the final report.

Highlights and innovative elements:

• Demonstrating the usability of absorption heat pumps on an industrial scale
• Demonstrating different operation strategies of absorption heat pumps on an industrial scale based on energy tariffs, heat demand, available heat source etc.
• Optimisation (technically and economically) of an existing DH line in combination with optimized client integration, additional waste heat potential and existing and new generation plants to be built

Implementation steps:

• Construction of large-scale absorption heat pump (total 35 MW)
  • Increased exploitation of currently unusable low-temperature waste heat of a large-scale waste heat source
  • Lowering of return temperature of this connection from 65°C to approx. 40°C
  • Driving energy for AHP comes from the exhaust steam of a biomass CHP (to be built).
  • Planned heat generation > 150 GWh/a with thermal capacities of the components:
    • heat generation using biomass & large absorption heat pump approx. 35 MW (incl. waste heat)
    • thereof low-temperature waste heat utilisation max. 5 MW
    • more efficient large-scale heat pump operation of AustroCel Hallein; approx. 10 MW
    • Operating hours: 6000 – 8400 h

>> to the ThermaFLEX lead project