Merits of forced draft combustion are high speed combustion and a possibility of acquisition of the compressed high temperature burnd gas.
This time, the authers produced the forced draft combustion apparatus for town gas (Test pressure…till 1.5 kg/cm2 gauge) and confirmed utility of the apparatus.
In this paper, we showed the heat loss Hl (kcal/hr) of the apparatus as a function of the burned gas temperature (t) and at the same time the data indispensable for calculation of the combustion press (P), the burned gas temperature (t) and the injection gas volume at the steady state.
Finally, G (Gas volume)-t characteristics of the apparatus were examined, the empirical formula of heat efficiency η was as follows.