化工原理实验报告处理(板式换热器)

∆𝒕𝒎 45.22277 44.57409 44.48142 𝐭平均 𝛒 𝛍 𝛌 𝐪𝐯 𝐮 𝐊 𝐍𝐔 𝐑𝐞 Pr 𝑙𝒏𝑵𝑼𝑷𝒓𝟎.𝟒𝒍𝒏𝑹𝒆 45.1301 46.709 49.76358 53.9 .3 .7 1.075371 1.98E-05 48.75 50.85 52.6 1.095991 1.088632 1.082568 1.96E-05 1.97E-05 1.97E-05 1.078102 1.076735 1.98E-05 1.98E-05 0.028252 0.028416 0.028553 0.0286 0.028685 0.028716 0.0044 0.004091 0.003663 0.002937 0.002204 22.5988 20.34941 18.21994 14.60612 68.45011 0.00147 10.961 7.312327 51.199 34.17516 19.04163 106.7832 96.09962 85.56394 60.47368 20261.25 0.696 .1096 47.94729 38.22174 28.55839 18029.11 15984.32 12720.97 9525.472 6340.174 0.695 0.695 0.695 0.695 0.695 4.247312 4.136372 4.015674 3.7133 3.497728 3.092453 9.9165 9.799743 9.6793 9.451007 9.161725 8.7662 y=0.99656x−5.6309

𝑵𝑼𝟎.𝟗𝟗𝟔𝟓

=𝟎。𝟎𝟎𝟑𝟔𝑹 𝒆

𝑷𝒓𝟎.𝟒