Infrared signature suppression effect of diesel engine wet exhaust system

Table 1. Main parameters of diesel engine
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Table 1. Main parameters of diesel engine
参数数值
额定功率/kW 6 000
额定转速/(r·min⁻¹) 1 300
排气流量/(m³·s⁻¹) 22
排气温度/℃ 550

Table 2. Diesel engine wet exhaust outlet temperature measurement
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Table 2. Diesel engine wet exhaust outlet temperature measurement
柴油机编号排气出口温度/℃
第1次测量值第2次测量值第3次测量值平均值
1号柴油机 66 67 67 66.7
2号柴油机 67 67 66 66.7
3号柴油机 68 70 70 69.3
4号柴油机 70 70 70 70.0

Table 3. Diesel engine wet exhaust outlet infrared radiation measurement results
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Table 3. Diesel engine wet exhaust outlet infrared radiation measurement results
测试朝向红外辐射强度/(W·sr⁻¹）
最大值最小值平均值仿真值
阳面 2.65 0.42 1.39 1.66
阴面 1.72 0.14 0.73

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Xiaoliang PU, Tao ZHONG, Yanzhen WANG. Infrared signature suppression effect of diesel engine wet exhaust system[J]. Chinese Journal of Ship Research, 2023, 18(6): 226

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