연탄이 연소할 때 배기기체에 포함된 일산화탄소의 mole백분율(CO%)은 그 초기에 있어서 대략 다음 식으로 표시된다. (CO%)=$frac{2{alpha}}{1+{alpha}}(CO_2%)$ exp $[-vec{k}(No_2-Nc)^{1/2}{ au}]$위식에서 ${alpha}=frac{-0.395K_p+sqrt{0.156K^2_p+(0.83+0.21K_p)K_p}}{0.83+0.21K_p}$그리고 $logK_p =-frac{8593}{T} + 2.45logT -1.08{ imes}10^{-3}T + 1.12{ imes}10^{-7}T^2+2.77vec{k},;No_2$ 및 $N_c$는 $CO+frac{1}{2}O_2{ o}CO_2$의 반응속도상수, 그리고 1mole의 배기기체에 포함된 산소 및 탄소의 산화물의 mole수이다. 본 실험에서는 연소된 전 탄소의 값에 대해서 일산화탄소를 전환된 백분율 및 연소로 속에 들어가는 공기의 유량속은 다음과 같았다. 1.76%와 0.53l/sec (뚜껑이 있을 때) 및 12.35%와 2.4l/sec (뚜껑이 없을 때)
When anthracite burns by natural draft the mole percent of carbon monoxide (CO%) contained in exhaust gas is approximately expressed as follows in the early stage of combustion. (CO%)=$frac{2{alpha}}{1+{alpha}}(CO_2%)$ exp $[-vec{k}(No_2-Nc)^{1/2}{ au}]$ where ${alpha}=frac{-0.395K_p+sqrt{0.156K^2_p+(0.83+0.21K_p)K_p}}{0.83+0.21K_p}$ and $logK_p =-frac{8593}{T} + 2.45logT -1.08{ imes}10^{-3}T + 1.12{ imes}10^{-7}T^2+2.77vec{k},;No_2$ and $N_c$ are the rate constant for the reaction ($CO+frac{1}{2}O_2{ o}CO_2$), mole fraction of oxygen and oxides of carbon contained in the exhaust gas, respectively. From experimental evidence obtained in this work with natural draft combustion of briquettes the percent of carbon monoxide to the total quantity of oxides of carbon produced and rate of air flow into the furnace were: 1.76% and 0.53 l/sec (When lid is used in the furnace) 12.35% and 2.4 l/sec (without use of a lid). is the rate constant for the reaction($CO+frac{1}{2}O_2{ o}CO_2$) and $N_0,;and;N_c$ are respectively the molefraction of oxygen and oxide of carbon contained in the exhaust gas.
