Page 190 - Packed bed columns for absorption, desorption, rectification and direct heat transfer

180

15 \

10
S \ \\
8
7 \\ \
\ U +20%
8 ^30%
A
0 0
\ \ -30%\
V V
w 10
a
3 s
° 6
A
2
"IF

4

1
04 0.6 0.8 1 0.2 0.4 0.6 0.8 1

Fig. 12, Comparison between the experimental Fig. 13. Comparison between the experimental
dHte for the packings given in Table 7 and the data and those calculated by Eq. (259) and
calculated line obtained using Eq. (259), (260) from Chapter 1 and equations (25) and
Chapter 1, and Eq. (25). (26) for the pressure drop over the loading
point of the packings given in Table 7.

To calculate the pressure drop of the irrigated packings under the
loading point, Bemer and Kalis [245] proposed the equation:

AP
(27)
AP n

where % is an experimentally obtained construction factor based on the mean
diameter of the packing channels. Its value is as follows [245]:
for Raschig rings - % = 0.435;
for Pall rings - % = 0.485.