Fluid_Flow_Rules_of_Thumb_for_Chemical

16

Rules of Thumb for Chemical Engineers

Pseudo-reduced Pressure, Pr

$

3

4

5

!

2

0

I . I

1.1

Pseudo reduced temperature

1,0

1.0 1.05

,L2

0.95

0.9

O.O

1.7

I

0.7

1.6

I I I I I b i b

i l a n IBm "-"l

N

0.6

1.5

8

1.4

E 0

U

0.4

1.3

0.3

T.2

0.25

1.1

1.1

MW<40

[ i i l

1.0

1.0

Compressil0il;ty of natural gases Jan.l,1941

0.1

0.9

10

11

12

13

14

15

Pseudo-reduced pressure, Pr

Figure 5. Z factor for natural gas.