Heat Extraction
Power plants, in general, do not only produce electricity: a substantial amount of energy is transformed into heat. It leaves the process without any further use. Therefore, it is called waste heat.
Combined heat and power plants aim to use this heat instead of emitting it straight to the atmosphere.
By using a heat exchanger this waste heat can be utilised. Two types can be differentiated: Regenerators storage the heat inbetween and recuperators use it directly. With a recuperator it can be injected into a district heating network but also used as asset for drying processes at low temperatures.
