J. G. Wuenning, WS Inc., Elyria, OH
Regenerative and recuperative combustion air preheating became increasingly in the last years, due to the high energy efficiency. Advances in the abatement of NOx-formation made it possible to lower emissions in new installation despite high air preheating temperatures. Now, there are many regenerative fired furnaces in the steel industry, many of them in the large reheating furnaces.
Besides the large firing capacities in reheating furnaces, there are many heat treating furnaces with smaller capacaity burners and also radiant tube heated furnaces. Small capacity regenerative burner systems require different concepts which will be discussed in the presentation.
Summary: Regenerative combustion air preheating became increasingly popular in the last years. Advances in the abatement of NOx-formation made it possible to lower emissions in new installation despite high air preheating temperatures. Now, there are many regenerative fired furnaces in the steel industry, many of them in the large reheating furnaces.
Besides the large firing capacities in reheating furnaces, there are many heat treating furnaces with smaller capacaity burners and also radiant tube heated furnaces. Small capacity regenerative burner systems require different concepts which will be discussed in the presentation.
