From Energy Recovery
Uses lost heat to preheat the combustion air to maximise the efficiency of the overall plant.
Ensures that there is hot air in the combustion chamber
- exhaust gas. air
- 100 000
- + 150-+700
- warm water, hot water, thermal oil
Air preheating is used whenever a fired plant, such as a furnace or a heater, releases exhaust gas heat as waste heat at a usable temperature level. This lost heat is used to preheat the combustion air to maximise the efficiency of the overall plant. Another point is the high degree of utilisation as the recovered heat can usually be completely returned to the process.