An air preheater uses heat from the flue gas to preheat combustion air before it enters the burner. This reduces the fuel required to provide the same useful heat output.
Determine the potential savings an air preheater can provide for your fired process heat system. Our calculator compares natural gas demand and annual energy costs for a standard boiler with those of a boiler equipped with combustion air preheating.
Calculate your annual natural gas and cost savings by entering the boiler’s rated thermal output, full-load hours and your natural gas price.
Note: The result is a simplified static assessment based on your inputs. Load profiles, maintenance, price changes and taxes are not included. Your data is processed locally in your browser only.
Use flue gas heat within the process
Flue gas often still contains usable heat. An air preheater transfers part of this heat to the combustion air and reduces the boiler’s fuel demand.
Reduce operating costs over the long term
At high full-load hours, even small improvements in efficiency can have a significant effect on annual natural gas consumption and energy costs. In general, the longer the system operates and the higher the natural gas price, the greater the potential savings.
Provide process heat more efficiently and sustainably
Process heat accounts for a significant share of industrial energy consumption. Heat recovery and energy-efficiency measures can therefore reduce both operating costs and energy-related emissions.
At a fired thermal oil system with a heating capacity of 1,500 kW and a maximum operating temperature of 280 °C, an air preheater was integrated into the system.
This increased the systems efficiency from 85 % to 93 %, saving a total of 650,000 kWh each year. The investment in the air preheater paid back after 22 months.
We assess flue gas data, operating conditions and the installation situation of your system, and develop a suitable concept for combustion air preheating and flue gas heat recovery.
After the click you can look directly into our calendar and choose a suitable appointment with one of our employees.