Russian Journal of Applied Chemistry, 2011, Vol. 83, No. 9, pp. 1638−1641.
Pleiades Publishing, Ltd., 2010.
Original Russian Text
A.S. Pushnov, A.A. Vaganov, 2010, published in Khimicheskaya Promyshlennost’, 2010, Vol. 88, No. 3, pp. 159−162.
PROCESSES AND DEVICES
OF CHEMICAL MANUFACTURES
Geometry Features, Hydraulic Resistance,
and Efﬁ ciency of Packing with Highly
Developed Speciﬁ c Surface
A. S. Pushnov and A. A. Vaganov
Moscow State University of Environmental Engineering, Moscow, Russia
Received January 12, 2011
Separation of isotopes, production of vitamins, etc.
require highly developed surface of the contact of in-
teracting ﬂ ows. A signiﬁ cant importance for realization
and forecasting of processes of heat and mass transfer
have geometry features of packing used in this process.
Results of analysis and generalization of literature and
our own experimental data on the geometry features,
hydraulic resistance and efﬁ ciency of packing with highly
developed speciﬁ c surface are reported in this work. The
main basis for analysis were the data of articles, reviews
and monographs [1–10].
Correlation of main geometry features of packing.
On Fig. 1 there is dependence of the value of equivalent
diameter of packing d
on developed speciﬁ c surface.
Mentioned dependence can be nicely approximated
by the expression:
a = B/d
where B = 3.4.
The least-mean-square error 95.7 conforms to the
mentioned dependence describing experimental data. The
increase in equivalent diameter leads to a decrease in the
speciﬁ c surface. Experimental data on polymer network
packing RSN are nicely described by formula (1).
Dependence ε = f(d
) is given on Fig. 2. Apparently,
the data on packing in form of ceramic Raschig rings
and Archimedean spiral are lower and are described by
ε = 5.2d
+ 0.66. (2)
Data on geometry features of big group of hetero-
geneous packing including regular foam block, regular
packing from corrugated network tapes, balls made from
chaotically rolled wire, Dixon rings, “Inzhehim- 2000,”
Fig. 1. Dependence of equivalent diameter on the speciﬁ c
surface of packing.
Other regular packing
Other irregular packing
0.005 0.015 0.025 0.035