化工原理实验--传热综合实验+雷诺实验.docx

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1、实验数据：普通管：序号△P(kPa)t1（℃）t2（℃）Vt(m³/h)V(m³/h)Q(W)△tm（℃）α10.1231.576.57.2387.773105.12239.07442.81320.333.674.911.44512.206151.50139.51761.01030.4834.573.914.47715.395182.28439.91072.68340.6634.97316.97618.029206.42640.39981.31250.8435.572.519.15120.299

2、225.71740.52388.63961.0236.272.121.10322.318240.78740.53494.53171.1836.671.822.69823.974253.60640.58799.433平均流速uReNulgReLg（Nu/Pr0.4）查得此温度空气热物理性质密度1.07656.8727472.6329.9393.8731.539比热容100510.79111734.3442.6644.0691.693热导率0.028613.61014799.4550.8274.17

3、01.769粘度0.15.93917331.3556.8624.2391.818Pr的0.4次方0.86617.94619514.3761.9854.2901.855传热面积A0.062819.73121455.1166.1054.3321.883流通断面积F0.21.19523046.7869.5344.3631.905由图可知：m=0.7471，C=0.强化管：序号△P(kPa)t1（℃）t2（℃）Vt(m³/h)V(m³/h)Q(W)△tm（℃）α10.0734.793.25.5715.9

4、21102.49521.46275.99820.1934.5919.1799.761163.19424.572105.69030.3134.489.511.72412.472203.35426.396122.59640.4334.688.213.80814.679232.82927.771133.41750.5534.887.515.61716.591258.73028.444144.75260.6735.686.817.23618.264276.71628.912152.30970.8136.

5、286.318.95220.043297.14229.219161.829平均流速uReNulgReLg（Nu/Pr0.4）查得此温度空气热物理性质密度1.065.2345520.8652.4123.7421.782比热容10058.6299101.5872.8903.9591.926热导率0.02911.02611629.5384.5494.0661.990粘度0.12.97813687.7892.0124.1362.027Pr的0.4次方0.86514.66815470.2799.8294.

6、1892.062传热面积A0.062816.14717030.47105.0414.2312.084流通断面积F0.17.71918689.09111.6064.2722.111由图可知：m=0.6141，C=962.72实验数据：管道有效长度：L=600mm，外径：D0=30mm，内径：D1=23.5mm，孔板流量计内径：d0=9.0mm雷诺实验数据表（温度：29℃）序号流量（L/h）流速(m/s)雷诺准数Re观 察 现 象流型1520.0333832.5594直线层流2990.0634158

7、5.065波浪状过渡区（下限）32120.1363394.281波浪状过渡区（上限）42200.1413522.367混散型湍流层流：过渡区（下限）：过渡区（上限）：湍流：