Branch: Public and administration buildings
Fichtelgebirgshalle, Wunsiedel, Germany
Project
The Fichtelgebirgshalle was built in 1984 and is used for concerts, conferences and lectures. In recent years, event organisers placed growing demands on the location, both in term of its technical equipment and on its climate control facilities. As part of a necessary modernisation of the air conditioning equipment (previously a simply ventilation system), authorities decided to install a new centralised climate control/cooling system.
Task
Three climate control concepts were suggested:
- Installation of a conventional liquid coolant system based on a compression chiller with open cooling facilities
- Large-format heat pump for heating and cooling; installation of an evaporator in the exhaust airway of the air conditioner system
- Expansion of the existing BHKW capacities and utilisation of the radiant engine heat to drive a WFC-SC 30 YAKAZI absorption chiller
Solution
- Integration of the YAZAKI absorption chiller in the building's central heating concept (with a peak-demand heating furnace)
- installation of buffer reservoirs (for both heating and cooling) to ensure smooth delivery of both heating and cooling according to demand
- integration of building automation
Technical data of the installed YAZAKI absorption chillers
- YAZAKI Li-Br absorption chillers, type WFC-SC 30
- 105 kW refrigeration output (max. 140 kW)
- Hot water: 88 to 83 °C (inflow min. 70 °C / max. 95 °C)
- Volume flow rate varying between 20 and 100 %
- Cold water: 12.5 to 7 °C (outflow min. 5.5 °C)
- Cooling water: 31 to 35 °C (inflow min. 24 °C / max. 34.5 °C)
- COP: 0.7 to 0.78
