8
1. 3. 2013.
Improvement of Energy Efficiency of Coal- fired Steam Boilers by Optimizing Working Parameters of Regenerative Air Preheaters
The first installation of a Ljungstrom air preheater on a commercial boiler reduced fuel consumption by as much as 25%, and in modern utility boilers the Ljungstrom air preheater contributes up to 20% of the overall boiler efficiency while representing only 2% of the total investment. Therefore, in this paper an analysis is shown on how operation parameters of an regenerative air preheater can be optimized in order to increase its efficiency and consequently the overall efficiency of a steam boiler.