Q. What is the function Air heater in the boiler? (Solved)
1. preheat the air before entering the boiler
2. recover the heat from flue gas
3. heating of economizer tubes
4. reheat the gas coming out of economizer
- b. recover the heat from flue gas
1. preheat the air before entering the boiler
2. recover the heat from flue gas
3. heating of economizer tubes
4. reheat the gas coming out of economizer