What are the benefits of the exhaust gas heat exchanger?

The combustion of biogas, for example, produces very hot exhaust gases in the engine compartment.

These exhaust gases with a temperature of 600-700 ° C flow out of the engine and would be released into the environment without being used without the exhaust gas heat exchanger (AWT).

Technology has developed a good solution for this, in order to use these hot exhaust gases and convert them into heat.

For this purpose, the AWT was integrated into the water circuit of the engine cooling circuit pump.

The problem with exhaust gas heat exchangers

• Aggressiveness of the smoke or exhaust gas.

• the cooling water (deposits)

3 basic rules of the AWT:

• Dimensioning of the pipeline in and out of the exhaust gas heat exchanger

• Size of the engine cooling circuit pump

• Optimal condition of the AWT

Since flue gases and water build up deposits in the exhaust gas heat exchanger, it clogs over time and can no longer adhere to the specified values.

Important:

The exhaust gas heat exchanger MUST be removed and cleaned regularly in order to maintain the throughput values.

In order to recognize whether the AWT is no longer working properly, a flow measurement with special ultrasonic measuring devices is useful. This happens during operation.

This is the only way to see whether the AWT is still performing or not!