Answered: Nu = a₁ + ( ) Nu == Nusselt number… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 91E

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Solve using excel or spreadsheet and show data analysis (regression table)

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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