There is an approximately 2 km long ring main running through Aurich from which users, with their heat pumps, can tap from the dairy’s wastewater heat up to 80% of the total heating energy they need.
The first big consumer that was connected to this eco-friendly and low-cost energy source was the Aurich multi-function arena. To convince the customer of the efficiency of our technology, we installed a plant for a test period of three months. All relevant parameters were continuously measured and analysed by a data logger. The consumption of about 60 kW is only a fraction of the available total amount of energy but this was constantly and over the long term transferred by the HUBER RoWin heat exchanger.
On the basis of the experience gathered during the pilot tests the requirements of a real size plant will now be determined to ensure the planned all-weather waterpark can be put into operation in 2012 as main user of this economically and ecologically reasonable energy source.
The test series has clearly shown that the HUBER RoWin Wastewater Heat Exchanger is unsusceptible to dairy wastewater. Also varying inflows from the dairy did not have any influence on the heat input into Aurich's district heating network. Certainly, other users will follow the multifunction hall and waterpark in the future to profit from this eco-friendly alternative to expensive heating plants.