Flue Gas Heating Circulating Airflow with Cross-flow Heat Exchanger

Flue Gas Heating Circulating Airflow with Cross-flow Heat Exchanger

Flue gas heating circulating airflow is a heat recovery system that is commonly used in industrial processes to improve energy efficiency. This system reduces energy consumption and wasted heat by capturing the waste heat in the flue gas and using it to preheat or heat the recirculating air stream.

Working Principle:

1. Waste heat capture from flue gas: In industrial processes, many systems generate flue gases that often contain high-temperature waste heat. The first step in a flue gas heating recirculating airflow system is to capture the waste heat from these flue gases.

2. Flue gas treatment: The captured flue gases are first subjected to a number of treatment steps to remove particles and pollutants to ensure that the flue gases do not cause damage to subsequent systems.

3. Waste heat transfer: The waste heat in the flue gas is usually transferred to the recirculating air stream through a heat exchanger. A heat exchanger is a device that transfers heat from the flue gas to the recirculating gas stream while ensuring that there is no mixing between the two.

4. Circulating gas stream heating: The circulating gas stream, usually air or other working medium, is heated to the required temperature and then used to heat the equipment or process required in the industrial process.