Title :
Heat transfer improvement and NOx reduction in an industrial furnace by regenerative combustion system
Author :
Suzukawa, Yutaka ; Sugiyama, Syuni Chi ; Mori, Isao
Author_Institution :
Plant Eng. Dept., NKK Corp., Hiroshima, Japan
Abstract :
Recent development of the regenerative combustion system in which ceramic honeycomb is used as a heat storage medium in a regenerator, has raised preheated air temperature up to 1600 K. By preheating the combustion air, the heating potential of the furnace gas is increased and the fuel consumption is reduced dramatically. However, higher air temperature increases the potential of NOx formation. Therefore, to apply this technology for commercial use, development of low NOx burner is strongly requested. In this paper, newly developed low NOx burner as well as the high performance honeycomb regenerator is explained. Also, theoretical and numerical analysis of fuel saving by the high preheated air combustion is discussed
Keywords :
air pollution control; boilers; combustion; furnaces; heat transfer; nitrogen compounds; numerical analysis; steam power stations; thermal energy storage; 1600 K; NOx reduction; ceramic honeycomb; combustion air; fuel consumption; fuel savings; furnace gas heating potential; heat storage medium; heat transfer improvement; industrial furnace; low NOx burner; numerical analysis; preheated air temperature; regenerative combustion system; theoretical analysis; Ceramics; Chemicals; Combustion; Fuels; Furnaces; Heat recovery; Heat transfer; Temperature; Valves; Water heating;
Conference_Titel :
Energy Conversion Engineering Conference, 1996. IECEC 96., Proceedings of the 31st Intersociety
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-3547-3
DOI :
10.1109/IECEC.1996.553800
