Abstract
The authors have been developed both of the electro-magnetic heat absorption technique and electro-magnetic resonance combustion technique for realization of high energy saving and low CO_2 emission. From several kinds of verification tests, we may say that a specific wave number at the regime of far infrared rays has both abilities to promote the combustion process and to increase the amount of heat transfer to working fluids from combustion gas. The principle is very useful to achieve the high energy saving and low emission of CO_2 for fossil fuel combustion.