55°C methanol flows over a 4m long 2m width flat plate with temperature of 25 C. The velocity of methanol is 1.08 km/h. Determine the total drag force and the rate of heat transfer from the entire...


55°C methanol flows over a 4m long 2m width flat plate with<br>temperature of 25 C. The velocity of methanol is 1.08 km/h.<br>Determine the total drag force and the rate of heat transfer<br>from the entire plate. What is the value of x_ and what does it<br>mean?<br>

Extracted text: 55°C methanol flows over a 4m long 2m width flat plate with temperature of 25 C. The velocity of methanol is 1.08 km/h. Determine the total drag force and the rate of heat transfer from the entire plate. What is the value of x_ and what does it mean?
TABLE A-13<br>Properties of liquids<br>Volume<br>Specific<br>Thermal<br>Thermal<br>Dynamic<br>Viscosity<br>Kinematic<br>Prandtl<br>Expansion<br>Conductivity<br>k, Wim-K<br>Temp.<br>Dersity<br>Heat<br>Diffusivity<br>Viscosity<br>Number<br>Coeff.<br>T, °C<br>a, ms<br>B, 1/K<br>P. ke/m3<br>Jkg-K<br>, ko/m-s<br>P, m?/s<br>Pr<br>Metha ne (CHJ<br>1.270 x 10-7<br>1.174 x 10-7<br>1.077 x 10-7<br>104<br>9.169 x 10-5<br>7.551 x 10-5<br>6.288 x 10-5<br>2.699 x 10-7<br>2.264 x 10-7<br>1.942 x10-7<br>1.694 x 10-7<br>-160<br>4 20.2<br>3492<br>0.1863<br>1.133<br>2.126<br>0.00352<br>-150<br>405.0<br>3580<br>0.1703<br>1.927<br>0.00391<br>-140<br>388.8<br>3700<br>0.1550<br>1.803<br>0.00444<br>-130<br>371.1<br>3875<br>0.14 02<br>9.749 x 10-<br>1.738<br>0.00520<br>8.634 x 10-8<br>7.356 x 10-8<br>5.761 x 10-8<br>3.423 x 10-<br>5.257 x 10-5<br>1.496 x 10-7<br>1.331 x 10-7<br>1.188 x10-7<br>1.055 x 10-7<br>-120<br>351.4<br>4146<br>0.1258<br>1.732<br>0.00637<br>328.8<br>4.377 x 10-5<br>3.577 x 10-5<br>2.761 x 10-5<br>-110<br>4611<br>0.1115<br>1.810<br>0.00841<br>-100<br>301.0<br>5578<br>0.0967<br>2.063<br>0.01 282<br>-90<br>261.7<br>8902<br>0.0797<br>3.082<br>0.02922<br>Methanol [CH3(OH)]<br>1.002 x 10-7<br>9.862 x 10-8<br>788.4<br>10-4<br>5.088 x 10-4<br>4.460 x 104<br>20<br>2515<br>0.1987<br>5.857<br>7.429 x 10-7<br>7.414<br>0.00118<br>30<br>779.1<br>2577<br>0.1980<br>6.531 x10-7<br>6. 622<br>0.00120<br>9.690 x 10-<br>9.509 x 10-<br>5.795 x10-7<br>5.185 x10-7<br>40<br>769.6<br>2644<br>0.1972<br>5.980<br>0.00123<br>3.942 x 10-4<br>3.510 x 10-4<br>3.146 x 10-4<br>50<br>760.1<br>2718<br>0.1965<br>5.453<br>0.00127<br>9.320 x 10-<br>9.128 x 10-<br>60<br>750.4<br>2798<br>0.1957<br>4.677 x10-7<br>5.018<br>0.00132<br>70<br>740.4<br>2885<br>0.1950<br>4.250 x 10-7<br>4.655<br>0.00137<br>Isobutane ( R600a)<br>-100<br>1.075 x 10-7<br>1.044 x 10-7<br>9.305 x 10-4<br>5.624 x 10-4<br>3.769 x 10-4<br>2.688 x 10-4<br>1.993 x 10-4<br>1.360 x 10-6<br>8.531 x10-7<br>683.8<br>1881<br>0.1383<br>12.65<br>0.00142<br>-75<br>659.3<br>1970<br>0.1357<br>8.167<br>0.00150<br>-50<br>-25<br>9.773 x 10-<br>8.906 x 10-8<br>7.974 x 10-8<br>5.942 x 10-7<br>4.4 20 x 10-7<br>3.432 x 10-7<br>634.3<br>2069<br>0.1283<br>6.079<br>0.00161<br>608.2<br>2180<br>0.1181<br>4.963<br>0.00177<br>580.6<br>2306<br>0.1068<br>4.304<br>0.00199<br>0.0956<br>7.069 x 10-3<br>6.233 x 10-<br>5.460 x 10-8<br>1.510 x 10-4<br>1.155 x 10-4<br>8.785 x 10-5<br>25<br>550.7<br>2455<br>2.743 x 10-7<br>3.880<br>0.00232<br>2.233 x10-7<br>1.836 x10-7<br>1.509 x 10-7<br>50<br>517.3<br>2640<br>0.0851<br>3.582<br>0.00286<br>75<br>478.5<br>2896<br>0.0757<br>3.363<br>0.00385<br>100<br>429.6<br>3361<br>0.0669<br>4.634 x 10-8<br>6.483 x 10-5<br>3.256<br>0.00628<br>

Extracted text: TABLE A-13 Properties of liquids Volume Specific Thermal Thermal Dynamic Viscosity Kinematic Prandtl Expansion Conductivity k, Wim-K Temp. Dersity Heat Diffusivity Viscosity Number Coeff. T, °C a, ms B, 1/K P. ke/m3 Jkg-K , ko/m-s P, m?/s Pr Metha ne (CHJ 1.270 x 10-7 1.174 x 10-7 1.077 x 10-7 104 9.169 x 10-5 7.551 x 10-5 6.288 x 10-5 2.699 x 10-7 2.264 x 10-7 1.942 x10-7 1.694 x 10-7 -160 4 20.2 3492 0.1863 1.133 2.126 0.00352 -150 405.0 3580 0.1703 1.927 0.00391 -140 388.8 3700 0.1550 1.803 0.00444 -130 371.1 3875 0.14 02 9.749 x 10- 1.738 0.00520 8.634 x 10-8 7.356 x 10-8 5.761 x 10-8 3.423 x 10- 5.257 x 10-5 1.496 x 10-7 1.331 x 10-7 1.188 x10-7 1.055 x 10-7 -120 351.4 4146 0.1258 1.732 0.00637 328.8 4.377 x 10-5 3.577 x 10-5 2.761 x 10-5 -110 4611 0.1115 1.810 0.00841 -100 301.0 5578 0.0967 2.063 0.01 282 -90 261.7 8902 0.0797 3.082 0.02922 Methanol [CH3(OH)] 1.002 x 10-7 9.862 x 10-8 788.4 10-4 5.088 x 10-4 4.460 x 104 20 2515 0.1987 5.857 7.429 x 10-7 7.414 0.00118 30 779.1 2577 0.1980 6.531 x10-7 6. 622 0.00120 9.690 x 10- 9.509 x 10- 5.795 x10-7 5.185 x10-7 40 769.6 2644 0.1972 5.980 0.00123 3.942 x 10-4 3.510 x 10-4 3.146 x 10-4 50 760.1 2718 0.1965 5.453 0.00127 9.320 x 10- 9.128 x 10- 60 750.4 2798 0.1957 4.677 x10-7 5.018 0.00132 70 740.4 2885 0.1950 4.250 x 10-7 4.655 0.00137 Isobutane ( R600a) -100 1.075 x 10-7 1.044 x 10-7 9.305 x 10-4 5.624 x 10-4 3.769 x 10-4 2.688 x 10-4 1.993 x 10-4 1.360 x 10-6 8.531 x10-7 683.8 1881 0.1383 12.65 0.00142 -75 659.3 1970 0.1357 8.167 0.00150 -50 -25 9.773 x 10- 8.906 x 10-8 7.974 x 10-8 5.942 x 10-7 4.4 20 x 10-7 3.432 x 10-7 634.3 2069 0.1283 6.079 0.00161 608.2 2180 0.1181 4.963 0.00177 580.6 2306 0.1068 4.304 0.00199 0.0956 7.069 x 10-3 6.233 x 10- 5.460 x 10-8 1.510 x 10-4 1.155 x 10-4 8.785 x 10-5 25 550.7 2455 2.743 x 10-7 3.880 0.00232 2.233 x10-7 1.836 x10-7 1.509 x 10-7 50 517.3 2640 0.0851 3.582 0.00286 75 478.5 2896 0.0757 3.363 0.00385 100 429.6 3361 0.0669 4.634 x 10-8 6.483 x 10-5 3.256 0.00628
Jun 11, 2022
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