干燥曲线与干燥速率曲线的测定

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干燥实验装置实验原始及整理实验数据表

空气孔板流量计压差计0.72kPa流量计处的空气温度t0 24.4℃干球温度t 50.2℃湿球温度t w 43.3℃框架质量G D 106.8g

绝干物料量G C22.8g干燥面积A 0.024992m2

累计时间t/min总质量G T/g干基含水量X/(kg/kg)平均含水量X AV/(kg/kg) 0141.20.50880.4868

4140.20.46490.4452

8139.30.42540.4079

12138.50.39040.3728

16137.70.35530.3399

201370.32460.3136

24136.50.30260.2917

281360.28070.2675

32135.40.25440.2456

361350.23680.2281

40134.60.21930.2083

44134.10.19740.1864

48133.60.17540.1667

52133.20.15790.1491

56132.80.14040.1316

60132.40.12280.1140

641320.10530.0965

68131.60.08770.0789

72131.20.07020.0658

761310.06140.0548

80130.70.04820.0439

84130.50.03950.0351

88130.30.03070.0241

921300.01750.0154

96129.90.01320.0088

100129.70.00440.0022

104129.60.0000

40HZ时干燥实验数据

t0 24.4℃

干燥速率U×104/〔kg/(s·m2)〕

1.6672

1.5005

1.3338

1.3338

1.1670

0.8336

0.8336

1.0003

0.6669

0.6669

0.8336

0.8336

0.6669

0.6669

0.6669

0.6669

0.6669

0.6669

0.3334

0.5002

0.3334

0.3334

0.5002

0.1667

0.3334

0.1667