化工原理上册实验数据处理优秀课件.ppt

化工原理上册实验数据处理2022/10/23第1页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定 原始数据表原始数据表序序号号流量流量(m3/h)光滑管光滑管mmH2O粗糙管粗糙管mmH2O局部阻力局部阻力mmH2O左左右右压压差差左左右右压压差差左左右右压压差差10.50 74.577.5368.3701.766.167.71.621.00 7279765.570.65.163.168.45.331.50 6980.511.562.572.710.259.470.110.742.00 65821756.574.618.154.272.21852.50 6183.522.55280.728.747.174.927.863.00 56852945.786.140.437.677.139.573.50 49.586.53737.792.254.526.678.351.784.00 39884722.893.8711378.865.82022/10/23第2页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定光滑管光滑管流速流速压压差差PaRelglgRe0.442329.420.0060176762.84478-2.22063.83010.884668.650.0035113525.6896-2.45474.13121.3270112.780.00256320288.5343-2.59134.30731.7693166.720.00213127051.3791-2.67144.43222.2116220.660.00180533814.2239-2.74354.52912.6539284.400.00161640577.0687-2.79174.60833.0962362.860.00151447339.9134-2.81974.67523.5386460.930.00147354102.7582-2.83184.73322022/10/23第3页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定光滑管Re图2022/10/23第4页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定粗糙管粗糙管流速流速压压差差PaRelglgRe0.4423 16.670.003416762.84478-2.46733.83010.8846 50.020.00255713525.6896-2.59224.13121.3270 100.030.00227320288.5343-2.64344.30731.7693 177.510.00226927051.3791-2.64424.43222.2116 281.460.00230233814.2239-2.63784.52912.6539 396.210.00225140577.0687-2.64774.60833.0962 534.480.00223147339.9134-2.65154.67523.5386696.300.00222554102.7582-2.65274.73322022/10/23第5页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定粗糙管Re图2022/10/23第6页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定本装置采用流量本装置采用流量计测计测流量，流量，V，m3/h。2022/10/23第7页，本讲稿共26页一、流体流动阻力的测定一、流体流动阻力的测定局部阻力局部阻力左左右右压压差差mmH2O压压差差Pa66.166.167.767.71.61.615.69 0.01635663.163.168.468.45.35.351.98 0.01354559.459.470.170.110.710.7104.94 0.01215354.254.272.272.21818176.53 0.011547.147.174.974.927.827.8272.64 0.01136737.637.677.177.139.539.5387.38 0.01121626.626.678.378.351.751.7507.02 0.010786131378.878.865.865.8645.30 0.010512022/10/23第8页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定过滤基本方程式过滤基本方程式K=2kP1-s2022/10/23第9页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定P=0.1106Pai/sVi/qiqii/qiA/m2132.57800.030709 0.030709 0.015354 1058.5450.0254240.197600.029921 0.060630 0.045669 1343.343363.418000.031496 0.092126 0.076378 2013.373478.057800.030709 0.122835 0.107480 2541.693587.587700.030315 0.153150 0.137992 2889.256101.227800.030709 0.183858 0.168504 3296.2857105.187900.031102 0.214961 0.199409 3382.018114.688000.031496 0.246457 0.230709 3641.092022/10/23第10页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定K1=2/k=2/11994 m2/s=1.66710-4m2/s2022/10/23第11页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定P=0.2106PaiViqiqii/qiA/m2115.177800.030709 0.030709 0.015354 494.030.0254229.597900.031102 0.061811 0.046260 955.3575336.588000.031496 0.093307 0.077559 1165.437448.717800.030709 0.124016 0.108661 1586.23552.457700.030315 0.154331 0.139173 1730.375658.177700.030315 0.184646 0.169488 1918.97755.067900.031102 0.215748 0.200197 1770.38861.248000.031496 0.247244 0.231496 1944.372022/10/23第12页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定K2=2/k=2/6710 m2/s=2.980610-4 m2/s2022/10/23第13页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定P（Mpa）过滤常数过滤常数K(mK(m2 2/s)/s)lglg PlgKlgK0.10.11.66710-4-1-1-3.7780.20.22.980610-4-0.69897-3.52570.30.34.651610-4-0.5229-3.33242022/10/23第14页，本讲稿共26页二、恒压过滤常数的测定二、恒压过滤常数的测定S=1-k=1-0.9339=0.06612022/10/23第15页，本讲稿共26页三、对流传热系数的测定三、对流传热系数的测定2022/10/23第16页，本讲稿共26页三、对流传热系数的测定三、对流传热系数的测定空气的密度与温度的关系式：空气的密度与温度的关系式：空气的比空气的比热热与温度的关系式：与温度的关系式：60以下以下1005 J/(kg),),1009J/(kg)。70以上以上2022/10/23第17页，本讲稿共26页三、对流传热系数的测定三、对流传热系数的测定 12345678水蒸气压强MPa0.020.020.020.020.020.020.020.02空气进口温度t1C34.030.625.522.320.419.918.917.7空气出口温度t2C75.174.273.373.474.677.379.182.2进口蒸汽温度T1C104.4104.3104.5104.6104.6104.7104.8104.8出口蒸汽温度T2C103.8104.0104.2104.2104.3104.5104.5104.6空气流量 V m3/h18.315.713.210.67.75.23.741.63空气定性温度54.5552.449.447.8547.548.64949.95空气进口处密度kg/m31.150 1.163 1.183 1.196 1.204 1.206 1.210 1.215 空气质量流量 ms2 kg/s0.005850.00510.00430.00350.00260.00170.00130.000552022/10/23第18页，本讲稿共26页三、对流传热系数的测定三、对流传热系数的测定空气进口处密度：=1.1502kg/m3 空气质量流量：传热面积：空气定性温度：2022/10/23第19页，本讲稿共26页三、对流传热系数的测定三、对流传热系数的测定冷热流体间的对数平均温差：则空气比热：J/(kgC)对流传热系数：2022/10/23第20页，本讲稿共26页三、对流传热系数的测定三、对流传热系数的测定12345678空气定性温度空气定性温度54.5554.5552.4052.4049.449.40 047.847.85 547.547.50 048.648.6494948.648.60 0空气比空气比热热1005传热传热面面积积m20.0628C46.3448.2550.9952.1852.0650.3949.4547.42空气空气质质量流量量流量0.005840.005070.004330.003520.002570.001740.001250.00055总给热总给热系数系数 K w/(m2C)82.9873.3765.0955.2042.9131.7524.4911.98空气空气对对流流传热传热系系数数w/(m2C)82.9873.37 65.09 55.20 42.91 31.75 24.49 11.98 2022/10/23第21页，本讲稿共26页四、离心泵特性曲线的测定四、离心泵特性曲线的测定序号序号电机功率电机功率/kW/kW水流量水流量Q/mQ/m3 3/h/h进口压力进口压力H H1 1/m/m出口压力出口压力H H2 2/m/m电机转速电机转速r/minr/min1 10.90.99.39.3-14.715-14.71574.55674.55628102 20.890.898.818.81-12.753-12.75386.32886.32828203 30.840.847.047.04-7.848-7.848125.568125.56828304 40.810.816.136.13-5.886-5.886142.245142.24528305 50.790.795.615.61-3.924-3.924150.093150.09328506 60.780.785.115.11-2.943-2.943155.979155.97928607 70.760.764.764.76-1.962-1.962159.903159.90328808 80.740.744.34.3-0.981-0.981164.808164.80829009 90.730.733.933.93-0.981-0.981167.751167.751292010100.70.73.273.270 0171.675171.67529302022/10/23第22页，本讲稿共26页四、离心泵特性曲线的测定四、离心泵特性曲线的测定水流量水流量Q/mQ/m3 3/h/h扬程扬程H/mH/m轴功率轴功率/kW/kW 9.01 9.49.40.8550.8550.29320.29328.57 10.410.40.84550.84550.310750.310756.87 13.913.90.7980.7980.351640.351645.98 15.415.40.76950.76950.35180.35185.51 16160.75050.75050.342960.342965.04 16.516.50.7410.7410.326290.326294.73 16.816.80.7220.7220.317610.317614.30 17.217.20.7030.7030.301690.301693.96 17.517.50.69350.69350.284380.284383.30 17.817.80.6650.6650.250990.250992022/10/23第23页，本讲稿共26页四、离心泵特性曲线的测定四、离心泵特性曲线的测定2022/10/23第24页，本讲稿共26页五、伯努力方程和雷诺数的测定五、伯努力方程和雷诺数的测定实验序号1234温度密度静压头A（mmH2O）B（mmH2O）C（mmH2O）压强A(Pa)B(Pa)C(Pa)动压头A（mmH2O）B（mmH2O）C（mmH2O）流速ABC压头损失l-A（mmH2O）l-B（mmH2O）l-C（mmH2O）2022/10/23第25页，本讲稿共26页五、伯努力方程和雷诺数的测定五、伯努力方程和雷诺数的测定实实验验序序号号流量流量VS温度温度T粘度粘度密度密度流速流速uRe实验现实验现象象及流型及流型1234562022/10/23第26页，本讲稿共26页