Flue-gas condensation

Flue gas condensation is a process, where flue gas is cooled below its water dew point and the heat released by the resulting condensation of water is recovered as low temperature heat. Flue gas condensation is a process, where flue gas is cooled below its water dew point and the heat released by the resulting condensation of water is recovered as low temperature heat. Cooling of the flue gas can be performed either directly with a heat exchanger or indirectly via a condensing scrubber. The condensation of water releases more than 2 gigajoules (560 kWh) per ton of condensed water, which can be recovered in the cooler for e.g. district heating purposes.