抄録
Innovative regenerative combustion technology has been developed in Japan over the past decade and has been applied to industrial furnaces so far like steel mills, heat treatment and non-ferrous melting fields. Typical advantages for the regenerative combustion system compared with conventional combustion and heat recovering system are higher energy saving rate, low NOx and uniform heating capabilities. In the regenerative system, Nippon Furnace Kogyo has succeeded to accomplish both an ultimate waist heat recovery rate of over 80% by adopting ceramic honeycomb as a regenerator and to reduce NOx emission to around 1/3 compared with conventional burner system by using ultra low NOx firing mechanism developed in consideration of High Temperature Air Combustion where preheated air temperature will be over 1000℃. These advantageous results has been arousing further needs for such high performance industrial furnaces as non-oxidized furnaces and hydrogen reformer as examples, so that these application have been commercialized successfully.
