Abstract
The article dwells on the method for summarizing experimental data on hydrodynamics of one-phase filtration flows through packed heat-and-mass exchange apparatuses differing in configuration. Summarizing is performed using a modified generalized equation. The described method simplifies the work with experimental bulk data, helps to compare the packed heat-and-mass exchange apparatuses, assess their energy performance and find the ways for their industrial implementation in heat-and mass exchange equipment.
Highlights
A large quantity of industrial packingsis known and a lot of packings are offered to be used industrially [1-13], and the work aimed at the creation of new packings is still going on
Requirements set for the packings of industrial apparatuses are low flow resistance, a wide range of liquid and gas load, ability to form a uniform velocity profile in the cross-section of the apparatus, good wettability of the packing, high retaining capacity for liquid, resistance to aggressive media, sufficient mechanical strength and low cost
The relation between flow resistance of a dry packed bed having certain height and gas filtration rate divided by the total cross-section of the packed bed is called a filtration curve
Summary
A large quantity of industrial packingsis known and a lot of packings are offered to be used industrially [1-13], and the work aimed at the creation of new packings is still going on. Creation of new highly efficient packings is a difficult and time-consuming process that sometimes requires providing for necessary but colliding structural solutions [1-19]. Requirements set for the packings of industrial apparatuses are low flow resistance, a wide range of liquid and gas load, ability to form a uniform velocity profile in the cross-section of the apparatus, good wettability of the packing (and in some cases hydrophobic behaviour, when it is necessary to reach dripping water flow mode), high retaining capacity for liquid, resistance to aggressive media, sufficient mechanical strength and low cost. One of the key performance indices for a heat-andmass exchange apparatus without regard to the details of the process is its resistance without wetting. A heat-andmass exchange apparatus working without wetting and penetrated only by a flow of gas (air) is called “dry”. Flow resistance of dry packed-type device is the parameter that is used first of all to assess its industrial implementation [14,15]
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