化工实验传热装置性能的测试.pdf

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1、1 L：U,U BRc,B,m2U2Nu=O.O23Reo sPro 1：,21-1,l-lo2 123456.891011.121314151617181-1(mm)20.00 (mm)22.0(mm)50 (mm)57.0(m)1.20 (mm)1 H(mm)40 W200 W10 Nu0.O23Reo sPr Pr Pr0.865,PfNu0.0199Re0 3o3 =BRewNu=O.0199Re34.75Kpa-4.79Kpa 2.30Kpa-2.32Kpa,1.12Kpa-1.14Kpa2.45Kpa-2.49Kpa 1.20Kpa-1.27Kpa,0.55Kpa-0.59Kpa1

2、60V,165V,170V,175V,180V;54.543.532.521.512 A4.75Kpa-4.79Kpa 5160v,165v,170v,175v101.12Kpa-1.14KpaXuReoV（m7h）（2）1-24 ”273+r=r x-”rl 273+/（Fx 3600（3）AZw=7.X J A（4）（5）Rew Pr43.1A2A-3-11.12Kpa-1.14Kpa53-1A-B,m B m 160V 0.0374 0.743 165v 0.0381 0.741 170v 0.0368 0.745 175v 0.0352 0.749 180v 0.0356 0.748

3、3-1B,mA-1.12Kpa-1.14Kpa5165v 175vB,m3-21.12Kpa-1.14Kpa,Bm3-2A-m 4.75Kpa-4.79Kpa 2.30Kpa-2.32Kpa 1.12Kpa-1.14Kpa 175v B m B m B m 0.0556 0.701 0.0165 0.721 0.352 0.749 3J3-2B,mA-1.12Kpa-1.14Kpa,165v5 170 V o 3-3A-1.12Kpa-1.14Kpa,432.5210.50 3-4165J75V33A-B,m 4 3 25 2 1 0.5 0 B m B m B m B m B m B m B

4、 m 165V 0.0543 0.701 0.0540 0.702 0.0523 0.707 0.0363 0.747 0.0571 0.700 0.0308 0.765 0.701 0.679 170V 0.0441 0.723 0.0455 0.721 0.0405 0.734 0.0351 0.751 0.0318 0.761 0.0307 0.766 0.0313 0.763 175V 0.0430 0.726 0.0406 0.733 0.0389 0.739 0.0365 0.747 0.0328 0.758 0.0304 0.767 0.0293 0.771 3-40.25B,m

5、 165 170 175 B m B m B m 25.0.0297 0.769 0.0285 0.773 0.0273 0.778 3-33-4B,mA-2.5175v,0.019940.83-5A-1.12Kpa-1.14Kpa,175v,0.253-5A(nT3/h)u(m/s)qc(W)(W/m2 Re Xu(Pr(2/5 26.26 23.22 r 382.09:92.28 r 27388 r 67.15 r 77.48 25.36 22.42 F 371.02 F 89.98 F 26407 F 65.43 F 75.50 24.17 21.37 F 355.66 F 86.62

6、F 25136 F 62.95 F 72.63 22.92 20.26 F 339.92 F 83.21 F 23809 F 60.43 F 69.73 21.59 19.09 r 323.48 r 79.38 r 22411 r 57.63 r 66.50 20.32 _17.97 F 307.45:75.F 21067 F 54,97 F 63.43 _ 18.96 16.77 F 289.73:71.46 F 19642 F 51.83 F 59.81 17.67 15 62 F 273.65:67.79 F 18278 F 49.13 F 56.69 16.27 14.39 r 255

7、.35 r 63.64 r 16807 r 46.09 r 53.18 3-1excel3-5,A-6 3-1A-3-1A-Nu=O.O273ORe0778,Nu=O.O1994Re08Nu=O.O273ORe0-778URe0.8,NIUBRJB3-63-5Re0.8Nu3-6A-NuR0ReM 3548.528 3446.476 3313.118 3172.436 3022.519 2876.618 2719.873 2567.692 2401 2239.504 Nu 67.15 65.43 62.95 60.43 57.63 54.97 51.83 49.13 46.09 42.94 L

8、gRe08 3.550 3.537 3.520 3.501 3.480 3.458 3.434 3.409 3.380 3.350 LgNu 1.827 1.815 1.798 1.781 1.760 1.740 1.714 1.691 1.693 1.632 7 3-23-6LgNu-LgRc08 3-2LgNu-LgRe0SNu=O.O1994Re08LgNu=LgRe08-1.700,-1.700,3-2ALgNu=0.994LgRe08-1.700LgNu=LgRe-1.70099.4%o3.2A-A-2.45Kpa-2.49Kpa 1.20Kpa-1.27Kpa,0.55Kpa-0.

9、59Kpa 5175V,3-7A-3-7A-B,m 2.45Kpa-2.49Kpa 1.20Kpa-1.27Kpa 0.55Kpa-0.59Kpa B m B m B m 175v 0.0578 0.759 0.0368 0.804 0.0285 0.830 3-7A-B,mA-Nu=0.02730Re778B,mA0.55Kpa-0.59Kpao8 3-8A-0.55Kpa-0.59Kpa,543.532.523-8AB,m 5 4.5 ax 4 3.5 BL 2.5 2fl B m B m B m B m B m B m B m 165V 0.0298 0.S25 0.0309 0.816

10、 0.0426 0.785 0.0484 0.768 0.0426 0.0785 0.0609 0.746 0.0373 0.799 170V 0.0291 0.828 0.0273 0.829 0.0324 0.815 0.0311 0.819 0.0324 0.0815 0.0387 0.796 0.0296 0.824 175V 0.0285 0.S30 0.0246 0.840 0.0296 0.825 0.02S4 0.829 0.0296 0.825 0.0295 0.S25 0.0346 0.808 180V 0.0295 0.826 0.0243 0.842 0.0277 0.

11、832 0.0259 0.839 0.0277 0.832/3-8B,mA-Nu=O.O273ORe0*778B,m180v,4.5A-0.55Kpa-0.59Kpa,180v,4.5393-9A(m3/h)i/(m 3/h)u(m/s)qc(W)(W/m2 1 Re Nu 17.35 Z19-13 17 18 410.83 2382 19008.81 87.31 16.75 18 77 _16.59 399.00 120.51 18351.89 84.95 15.97 17.91 1583 382.60 116.01 17489.42 81.76 15.15 17.00 15.03 364.

12、45 in.n 16579.08 78.2 1 14.28 16.04 14.18 316.09 105.85 15627.95 74.50 13.36 15.01 L3 27 326.46 100.27 14608.03 _70 52 12 57 14 14 12.50 309.43 95.34 13745.36 67.03 11.73 13.20 11 67 290.87 89.91 12830.82 63.20 10.82 12.19 10.78 270.72 84.04 11838.62 59.04 3-9ALgNu-LgRe2-3 9 3-3A3-3A-Nu=O.O2591Re083

13、93Nu=O.O1994Re08 3.3B-BA45165v180v,B3-10B-B,m 2.04Kpa 0.94Kpa 0.64Kpa 4.12Kpa-4.16Kpa-2.08Kpa -0.96Kpa _0.68Kpa B m B m B m B m 165V 0.04810 0.7104 0.05116 0.7115 0.03658 0.7371 0.03229 0.7500 170v 0.05254 0.7026 0.04052 0.7210 0.03857 0.7320 0.03257 0.7495 175v 0.05125 0.7042 0.04161 0.7233 0.03709

14、 0.7364 0.03220 0.7510 180v 0.05036 0.7059 0.04306 0.7265 0.03892 0.7316 0.03215 0.7515 3J0B,mB165v180v 0.64Kpa_0.68KpaB,mB064Kpa_068Kpa,165V180V10 54.5433J1341B-B,m 165v 170v 175v 180v B m B m B m B m 5 0.0481 0.710 0.0525 0.702 0.0512 0.704 0.0503 0.705 4.5 0.0534 0.698 0.0429 0.721 0.0382 0.734 0

15、.0410 0.0726 4 0.0522 0.701 0.0376 0.736 0.0399 0.730 0.0365 0.739 3 0.0494 0.708 0.0377 0.737 0.0356 0.743 0.0372 0.739 4.25 0.0349 0.732 0.0319 0.752 0.0327 0.749 0.0341 0.745 3-1154.54.25170V B-170v,0.64Kpa_0.68Kpa,4.253J23-12 B-11(m3/h)/(m3/h)u(m/s)qc(W)(W/m2 Re Nu 18.76 20.21 17.87 285.76 66.67

16、 21164 50.08 17.93 19.32 17.08 274.66.12 20211 48.19 17.06 18.39 16.26 63.47 19205 46.23 16 14 17.40 15.38 60.80 1 18160 44.26 116 16/36 14.47 237*91 5&14 17045 42.28 14.11 15.24 13.48 223.40 54.87 861 39.89 13.37 14 45 12.78 214.86 52.91 15019 38.43 12.37 13.40 11.84 201.88 50 x10 13891 3635 11.52

17、12.19 11.04 190.69 47.44 12925 3 1.39 3-12BLgNu-LgRe11 3-4B3-4BNu=O.O319ReO752,Re0.8Nu=BRe0 8B3J3Re0.83-13B-LgNu-LgRe08 Re08 2887.09 2782.725 2671.3S4 2554.422 2428.1622 2296.263 2194.385 2661.873 1946.007 1819.453 Nu 50.08 48.19 46.03 44.26 42.28 39.89 38.84 36.35 34.39 32.36 LgRe 3.460 3.444 3.426

18、 3.407 3.385 3.360 3.341 3.314 3.289 3.259 LgNu 1.699 1.682 1.664 1.646 1.626 1.600 1.584 1.560 1.536 1.510 3-63-13LgNu-LgRe 1 12 35B-3-5LgNu-LgRe08Nu=O.O1994Re08LgNu=LgRe.1.700,-1.700,32ALgNu=0.982LgReo-1.700LgNu=LgRe 1.70098.2%o 3.4B42.55Kpa-2.57Kpa（1.17Kpa-1.19Kpa,0.57Kpa-0.59Kpa,0.38Kpa-0.40Kpa,

19、175V,53-14BB,m 2.55-2.5Kpa 1.17-1.19Kpa 0.57-0.59Kpa 0.3&0.40Kpa B m B m B m B m 175v 0.0512 0.763 0.0460 0.773 0.0387 0.791 0.0305 0.816 3-14B-B,mB175V0.38-0.40Kpao3-15B-165v-180 V0.38-0.40Kpa,5.04.54313 345BB,m/v 5 4.5 4 3 B m B m B m B m 165 0.0375 0.792 0.0484 0.766 0.0471 0.768 0.0774 0.713 170

20、 0.0317 0.812 0.0377 0.794 0.0349 0.802 0.0393 0.788 175 0.0305 0.816 0.0344 0.804 0.0322 0.811 0.0376 0.793 180 0.0301 0.818 0.0339 0.806 0.0353 0.801 0.0346 0.803 3-15BNu=OO319Re0 752B-B,m180V,5B180v,0.38-0.40Kpa,53-16Bu(m/s)qc(W)(W/m2 1 Re Nu(Pr(2/5)14.12 332.33 99.95 15661.23 706 81.52 13.59 320

21、.97 97.0 1 15050.87 6&45 79.09 34 301.83 92.74 14201.37 65 37 75 53 12.05 286.94 87.58 13302.59 61.69 71.28 11.42 274.53 84.23_ 12595.53 59.31 68.53 10.75_ 260.01 80.04 11839.46 56.32 _65.08 10.03 244.59 75.11036.93 53.29 9.25 227.44 70.76 10172.38 19.74 J 57 48 8.70 215.16 67.16 9553.47 47.19 54.53

22、 3-16LgNu-LgRe14 36B-3-6B-Nu=0.030HRe0 883Nu=0.01994Re0 8B-B-Re0.8,B-B3-19 0.3 8-0.4 0 K p a N u-R e0 8B.m 5 4.5 4 3 B m B m B m B m 165v 0.030 0.8 0.030 0.8 0.030 0.8 0.029 0.8 170v 0.031 0.8 0.031 0.8 0.031 0.8 0.030 0.8 175v 0.031 0.8 0.031 0.8 0.031 0.8 0.030 0.8 180v 0.031 0.8 0.031 0.8 0.031 0

23、.8 0.030 0.8 3-19Re08B165 170V5.03ANu0.02730Re m,LgNu=0.994LgRe08.1.700o175v,1.12Kpa-1.14Kpa,15 0.2599.4%A-Nu=0.02591Re 339,0.55Kpa-0.59Kpa,180v,4.5 B-Nu=0.O3192Re0 75%LgNu=0.982LgRe8-1.700o170v,0.64Kpa_0.68Kpa,4.2598.2%B-Nu=0.03192Re180v,0.38-0.40Kpa,5ABA 175V,B170V,AB180V,AB 165V-185VRe0.8Bm1.2m1.2m1.2mBm1 2 1997.16 4 1983,34(1)22355，1994：1536 21990：427 2000：68-708 R134aEJJ.2006,27(6)：2528 9 J.1996,19(1)：6873.17