Under the condition of constant phosphorus mass flow rate, the smog exit temperature would increase slowly while other parameters would decrease with increasing excess air coefficient.

在燃磷量不变情况下，最高燃烧温度、壁面最大热流和平均热流均随过剩空气系数的增大而减小，但烟气出口温度缓慢增加。

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Because of the great disturbance of boiler burning system, on the spot, we don't find absolute excess air coefficient but its optimum interval.

由于锅炉燃烧系统的扰动较大，我们实际寻取的是相对的最佳过量空气系数，更为重要的是找到最佳过量空气系数区间。

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Through experiments of excess air coefficient on the PC combustion in stove, it is concluded that it is no use to add too much air at the beginning of free-oil ignition of PC.

本文通过研究过量空气系数对炉内火焰的影响规律，指出在煤粉无油点火初期不宜补充大量二次风。

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