perry s chemical engineers phần 1 pps

... fraction of phase i Dimensionless Dimensionless Re Reynolds number Dimensionless Dimensionless s Density ratio Dimensionless Dimensionless U .S. customary Symbol Definition SI units units s Entropy ... mass J/(kg ⋅ K) Btu/(lbm ⋅ R) S Slope Dimensionless Dimensionless S Pumping speed m 3 /s ft 3 /s S Surface area per unit volume l/m l/ft St Strouhal number Dimensionless Dimensionl...

Ngày tải lên: 06/08/2014, 13:22

... 64.44 16 0 14 .9990 11 2.200 1. 055 7.56 11 8.7869 65.7 31 1.305 33.89 61 10.8 715 81. 325 1. 555 51. 75 11 1 12 .95 61 96. 918 1. 805 64.67 16 1 15 .0407 11 2. 512 1. 060 8. 21 12 8.8286 66.042 1. 310 34. 31 62 10 . 913 2 ... 15 .3326 11 4.696 1. 095 12 .58 19 9 .12 04 68.226 1. 345 37 .19 69 11 .20 51 83.820 1. 595 54.09 11 9 13 .2897 99. 414 1. 845 66. 41 1...

Ngày tải lên: 16/02/2014, 19:20

... between vessel and pump; S 0 = system speed as given by Eq. (6-80), assumed independent of pressure; p 1 = initial vessel pressure; p 2 = final vessel pressure; and p 0 = lowest pump intake pressure ... of pressure drop. A common error is to assume that pressure drop and frictional losses are equiva- lent. Equation (6 -16 ) shows that in addition to frictional losses, other factors such a...

Ngày tải lên: 06/08/2014, 13:22

... Cond., 24 (1) , 16 5 17 6 (19 52). †Tuve, Heat, Piping Air Cond., 25 (1) , 18 1 19 1 (19 53). ‡Albertson, Dai, Jensen, and Rouse, Trans. Am. Soc. Civ. Eng., 11 5, 639–664 (19 50), and Discussion, ibid., 11 5, 665–697 ... number. = ΂ 1 + M 1 2 ΃ 1. 4/ (1. 4 − 1) M 1 = 0.773 1. 4 − 1 ᎏ 2 1. 5 × 10 5 ᎏᎏ 1. 01 × 10 5 2 ᎏ 1. 4 + 1 T* ᎏ T 0 1. 4 × 29 ᎏᎏ 8 314 × 293 2 ᎏ...

Ngày tải lên: 06/08/2014, 13:22

... Mixtures in Pipes, Van Nostrand Reinhold, New York, 19 72.) Apr. 26, 19 76; 14 4 15 0, May 24, 19 76; 14 1 14 8, July 19 , 19 76; 89–94, Aug. 2, 19 76; 10 1 10 8, Aug. 30, 19 76; 10 9 11 2, Sept. 27, 19 76; 11 9 12 6, ... V o /V i = 1. 96, the hole velocity is 1. 96 × 2 .10 = 4 .12 m /s and the pressure drop across the holes is obtained from Eq. (6 -14 9). ∆p o ==× =22 ,10 0 P...

Ngày tải lên: 06/08/2014, 13:22

... similar restric- tions, vortices may periodically be shed downstream. Objects such as smokestacks, chemical- processing columns, suspended pipelines, and electrical transmission lines can be subjected ... specific structures: steel stacks (Osker and Smith, Trans. ASME, 78, 13 81 13 91 [19 56]; Smith and McCarthy, Mech. Eng., 87, 38– 41 [19 65]); chemical- processing columns (Freese, J. E...

Ngày tải lên: 06/08/2014, 13:22

... Inc., 19 93). DIMENSIONLESS GROUPS For purposes of data correlation, model studies, and scale-up, it is useful to arrange variables into dimensionless groups. Table 6-7 lists many of the dimensionless ... provides substantial improve- ment in predictions of flows with stagnation, separation, normal straining, transient behavior such as vortex shedding, and relaminar- ization. Stress transpor...

Ngày tải lên: 06/08/2014, 13:22

... of voids Dimensionless Dimensionless in a packed bed Φ Factor governing use of Eqs. Dimensionless Dimensionless (15 -14 8) and (15 -14 9) χ Parameter in Eq. (15 - 41) Dimensionless Dimensionless indicating ... Dimensionless Dimensionless experiment [Eq. (15 -17 5)] ξ continuous Efficiency of a continuous Dimensionless Dimensionless process [Eq. (15 -17 6)] ξ m Murphree stage efficiency Dimen...

Ngày tải lên: 16/02/2014, 19:20

... fraction of phase i Dimensionless Dimensionless Re Reynolds number Dimensionless Dimensionless s Density ratio Dimensionless Dimensionless U .S. customary Symbol Definition SI units units s Entropy ... mass J/(kg ⋅ K) Btu/(lbm ⋅ R) S Slope Dimensionless Dimensionless S Pumping speed m 3 /s ft 3 /s S Surface area per unit volume l/m l/ft St Strouhal number Dimensionless Dimensionl...

Ngày tải lên: 27/06/2014, 14:20

... plays football, tennis or golf? What do you call someone who does athletics or skiing? Where do you do these sports? court track pitch slope course What do you use? clubs skis shoes boots racket 3. ... classroom test pencil study course learn blackboard revision 1. blackboard 2. classroom 3. 4. 5. 6. 7. 8. 9. 10 . 11 . 12 . ➢ ➢➢➢ 3 ©Cambridge University Press 20 01 EXERCISE 4 – VERB P...

Ngày tải lên: 23/07/2014, 23:21