序号123456空气流量V t 1（m3/h）3026.122.1181410空气入口t i1（℃）40.440.642.142.643.243.5空气出口t i2（℃）75.876.978.179.480.682.2壁温t w （℃）100100100100100100平均温差△t m i（℃）41.941.2539.93938.137.15平均温度t m i（℃）58.158.7560.16161.962.85入口流量V t 1（m3/h）3026.122.1181410平均流量V tm （m3/h）31.6943227.6105723.3624619.0494314.8279610.61137平均流速u tm（m/s）28.0381524.4254920.6674216.8519413.117449.387274密度ρ(kg/m3) 1.06 1.06 1.06 1.06 1.06 1.06黏度μ（Pa.s) 2.01E-05 2.01E-05 2.01E-05 2.01E-05 2.01E-05 2.01E-05导热系数λ(Ｗ/ｍ.℃)0.0290.0290.0290.0290.0290.029比热Cpi(kJ/kg.℃) 1.005 1.005 1.005 1.005 1.005 1.005空气得到热量Q（W）0.3320120.2965870.248880.2074430.1641050.121521侧对流给热系数(W/m2?℃)0.084414
0.0774480.0680030.0592760.0490040.038338雷诺数Re 29572.5725762.2121798.4817774.1813835.319901.005努塞尔数Nu 0.0582160.0534120.0468990.040880.0337960.02644普朗特数Pr 0.0006970.0006970.0006970.0006970.0006970.000697Nu/（Pr0.4） 1.066604
0.9785910.8592470.7489750.6191820.484411lgRe 4.470889 4.410983 4.338426 4.24979 4.140989 3.995679lgNu -1.23496
-1.27236-1.32884-1.38849-1.47114
-1.57774
强化套管换热器数据
传热管内径：0.02m 传热管有效长度：1m 冷流体：空气
热流体：水蒸气