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Nu = a₁ + ( ) Nu == Nusselt number hmheat transfer coefficient D₁ = tube diameter Dp solid particle diameter L=heated fulidized bed length void fraction of fluid bed G gas mass velocity 1- P.C.)" (D-9)" ()

Nu = a₁ + ( ) Nu == Nusselt number hmheat transfer coefficient D₁ = tube diameter Dp solid particle diameter L=heated fulidized bed length void fraction of fluid bed G gas mass velocity 1- P.C.)" (D-9)" ()

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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2. Dow and Jacob proposed the following dimensionless equation as a suitable representation for experimental data dealing with heat transfer between a vertical tube and a fluidized solid mixture: 1- P₂C₂) ()*(()* where Nu = t = Nusselt number hm = heat transfer coefficient D₁ = tube diameter Dp solid particle diameter L = heated fulidized bed length € = void fraction of fluid bed G gas mass velocity Nu = a₁ Kg. Pg. Cg.lg Cs. Ps= properties of solid phase hm De kg 469 913 1120 234 487 709 581 650 885 672 986 1310 1190 1890 2460 properties of gas phase Use the following data to calculate the parameter values a₁, a, a, a, a, using linear regression on log(Nu) and non-linear regression on Nu. 915 1260 Dt L 0.636 0.636 0.641 0.285 0.285 0.283 0.518 0.521 0.524 0.455 0.451 0.455 0.944 0.974 0.985 0.602 0.602 1690 0.617 Dow, W.M., and Jacob, M., Chem. Eng. Progr. 47, 637 (1951). as Dt D₂ 309 309 309 309 309 309 683 683 683 1012 1012 1012 1130 1130 1130 1130 1130 1130 1-8 Ps Cs € Pq Cq 833 868 800 800 800 767 795 795 795 867 867 867 1608 1608 1608 1673 1673 1673 D₁G Mg 256 555 786 255 555 850 254 300 440 338 565 811 343 573 814 343 485 700
Transcribed Image Text:2. Dow and Jacob proposed the following dimensionless equation as a suitable representation for experimental data dealing with heat transfer between a vertical tube and a fluidized solid mixture: 1- P₂C₂) ()*(()* where Nu = t = Nusselt number hm = heat transfer coefficient D₁ = tube diameter Dp solid particle diameter L = heated fulidized bed length € = void fraction of fluid bed G gas mass velocity Nu = a₁ Kg. Pg. Cg.lg Cs. Ps= properties of solid phase hm De kg 469 913 1120 234 487 709 581 650 885 672 986 1310 1190 1890 2460 properties of gas phase Use the following data to calculate the parameter values a₁, a, a, a, a, using linear regression on log(Nu) and non-linear regression on Nu. 915 1260 Dt L 0.636 0.636 0.641 0.285 0.285 0.283 0.518 0.521 0.524 0.455 0.451 0.455 0.944 0.974 0.985 0.602 0.602 1690 0.617 Dow, W.M., and Jacob, M., Chem. Eng. Progr. 47, 637 (1951). as Dt D₂ 309 309 309 309 309 309 683 683 683 1012 1012 1012 1130 1130 1130 1130 1130 1130 1-8 Ps Cs € Pq Cq 833 868 800 800 800 767 795 795 795 867 867 867 1608 1608 1608 1673 1673 1673 D₁G Mg 256 555 786 255 555 850 254 300 440 338 565 811 343 573 814 343 485 700
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