Air Preheater Function :
| ☑ | The purpose of air preheater is to recover the heat from the boiler flue gas which increases the thermal efficiency of the boiler by using the useful heat which would be lost in the flue gas. |
| ☑ | 1% improvement in boiler efficiency is realized for each 20°C increase in boiler inlet air temperature |
| ☑ | 1% improvement in boiler efficiency = 1% improvement in heat rate = 24 K Cal / KW Heat gain |
What is Air Preheater Fouling :
- Air heater fouling is usually in the form of plugging of the element channels by deposits of:
- Fly Ash
- Sulfur (and Sulfuric Acid)
- Other Corrosion and Flow limiting Deposits
- An increase in pressure differential across the air heater is directly related to the degree of fouling
Impact of Air Preheater Fouling :
- An increase in pressure differentials across the air heater can cause:
- Increase in Fan Amps/Aux. Power
- Decrease in MW Output
- Reduced Boiler Efficiency
- Increased Heat Rate
- Increased CO2 Emissions
FHS Cleaning Results:
Before
After
Before
After
Boiler Jet Cleaning (Upto 1382 MW)
FHS Group is partner to 64 companies (PAN INDIA) for their Boiler & Condenser cleaning from (6 -1382 MW) Capacity.
Our Under promising and over delivering capacity has been a path breaker in maintaining this relationship with our clients.
