液液传热综合实验

作者：ggggg | 发布时间：2020-12-11 00:25:03 收藏本文下载本文

数数据整理表 1 冷却水流量：256(l/h)水箱温度：50.0(℃）装置编号：

实验日期：

No.1 2 3 4 5 6 7 8 9 10 流量（L/h)1000 900 800 700 600 500 400 300 200 100 T1(℃）49.0 48.9 49.1 49.4 49.5 49.2 49.0 49.2 49.6 49.2 T2(℃）46.3 46.1 46.1 46.0 45.9 45.5 47.4 46.4 44.6 43.0 Tw(℃）27.6 27.3 27.0 26.6 26.1 25.8 25.4 24.8 24.2 23.2 at(℃）48.65 48.45 48.65 49.00 49.00 48.75 49.00 49.40 48.65 47.10 ρat(kg/m^3)988.1 988.1 988.1 988.1 988.1 988.1 988.1 988.1 988.1 988.1 λat*100 0.4678 0.4678 0.4678 0.4678 0.4678 0.4678 0.4678 0.4678 0.4678 0.4678 Cp at 4174 4174 4174 4174 4174 4174 4174 4174 4174 4174 μat*10000 0.00055 0.00055 0.00055 0.00055 0.00055 0.00055 0.00055 0.00055 0.00055 0.00055 dt(℃)4.1 3.3 3.3 3.6 4.0 3.5 2.4 2.4 4.3 7.0 dat(℃）21.05 21.25 21.65 22.00 22.30 22.65 23.90 24.2 24.15 23.60 V(m^3/h)1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 u(m/s)1.09215 0.98294 0.87372 0.76451 0.65529 0.54608 0.43686 0.32765 0.21843 0.10922 qc(W)4697.15 3402.57 3024.51 2887.03 2749.55 2004.88 1099.82 824.866 985.256 801.953（W/m 2· ℃）3948.03 2833.00 2471.69 2321.81 2181.5 1566.1 814.183 603.067 721.822 601.222 Re 35356.4 31820.7 28285.1 24749.5 21213.8 17678.2 1442.5 10606.9 7071.27 3535.64 Nu 109.701 78.7187 68.6794 64.5146 60.6159 43.5161 22.6232 16.757 20.6568 16.7058 Pr 3.53997 3.53997 3.53997 3.53997 3.53997 3.53997 3.53997 3.53997 3.53997 3.53997 Nu/(Pr^0.3)75.0779 53.8738 47.0031 44.1528 41.4846 29.7817 15.4829 11.4683 13.7268 11.4332 Ln(Re)10.4732 10.3679 10.2501 10.1166 9.96241 9.78009 9.55594 9.26926 8.86380 8.17065 Ln(Nu/Rr^0.3)4.31853 3.98664 3.85021 3.78766 3.72532 3.3939 2.73947 2.43958 2.61933 2.43652 ***0 2 4 6 8 10 12系列1 ii