A heat exchanger extracts heat from the wastewater, and the large heat pump raises the water temperature to up to 75 C for the heating network. An 18-meter-tall heat buffer with an 18-meter ...

The Fraunhofer ISE has designed a novel method for assessing the potential of low-temperature heat sources for large-scale heat pumps. The five-step process was tested on the German city of Fellbach, ...

A heat exchanger draws the heat from the waste water, after which the large heat pump increases the temperature to 75 degrees and the water is fed into the heating grid, according to the company.