Abstract
The authors have been developed the electro-magnetic spectrum absorption technique by using a specific bands at the molecular oscillation regime of far infrared rays for realization of high energy saving and low emission of CO_2 in the fossil fuel combustion. This technique makes it possible to obtain high efficiency of temperature exchange between combustion tube and working fluid at the heat exchange region. The verification test has been carried out by the wick diffusion flame and the practical combustor such as house boiler. From these results, the temperature rise ratio obtained by utilization of the radiant material may be around 5 to 15%, though it depends on air or water as working fluid. The principle is very useful to achieve the high energy saving and low emission of CO_2 for fossil fuel combustion.