CAJ | 학술논문

为有效抑制舰船发动机排出烟气产生的突出的红外辐射特征，进行了两级喷雾冷却降温的实验研究。实验分析了第一级喷雾压力（流量）对烟气温度的影响，根据两级喷雾压力对烟气温度的影响规律，得到了发动机多工况下冷却烟气所需的最佳喷雾参数与发动机负荷关联的回归模型。实验结果表明，两级喷雾冷却方法可以有效抑制发动机排出高温烟气的温度。
위유효억제함선발동궤배출연기산생적돌출적홍외복사특정，진행료량급분무냉각강온적실험연구。실험분석료제일급분무압력（류량）대연기온도적영향，근거량급분무압력대연기온도적영향규률，득도료발동궤다공황하냉각연기소수적최가분무삼수여발동궤부하관련적회귀모형。실험결과표명，량급분무냉각방법가이유효억제발동궤배출고온연기적온도。
In order to suppress the obvious infrared radiation characteristics of ship engine exhaust gas , a two‐stage spray cooling experiment was done .The effect of the first stage spray pressure (or flow rate) on gas temperature was analyzed in this paper .Based on the effect law of two‐stage spray pres‐sure on gas temperature ,the regression model of the needed two‐stage spray parameters was obtained which was related to the engine load under different working conditions .The experimental data indi‐cate that the two‐stage spray cooling method can be used to suppress the high temperature of engine exhaust gas effectively .