Constructions of injection-type evaporational heat exchangers (patent review)

Sergeev, Yu.A.; Gorlovskii, D. M.; Basargin, B. N.; Kucheryavyi, V. I.; Gladkov, V. A.

doi:10.1007/bf01148518

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As it follows from the literature [3][4][5][6][7][8][9][10][11][12][13][14][15], research aimed at evaluating the kinetic characteristics of heat exchange when combining the processes of "dry" and "wet" heat exchange, which are different in physical nature, into a single process of enthalpy transfer between gas and liquid should be considered justified.…”

Section: Methods Of Separate Determination Of Mass Transfer Resistanc...mentioning

confidence: 99%

“…Most often, the fill has the form of Raschig rings, and it is important to study the thermal characteristics of the plates used to concentrate liquids that are in direct contact with hot gas emissions [4]. To evaluate such characteristics, the enthalpy exchange coefficient was chosen since it takes into account heat exchange both due to the temperature difference and due to evaporation.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

Determining heat and mass exchange kinetic in a column heat exchanger with direct phases contact

Tseitlin,

Shkop,

Shestopalov

et al. 2024

EEJET

View full text Add to dashboard Cite

The object of this study was the processes of heat and mass transfer in a column heat exchanger with direct phases contact. The investigated problem is related to the need to determine the estimates of the kinetic characteristics of heat exchange during the concentration of solutions in a contact heat exchanger equipped with dual-flow trays. In particular, it was assumed that the determination of the influence of the gas velocity in the apparatus and the density of liquid irrigation of the plates, as well as the geometry of the plates, on the kinetic coefficients would make it possible to reveal the patterns of heat and mass exchange between the liquid and the air in contact with it in the column apparatus. It was determined that to increase the intensity of mass transfer in the gas and heat transfer in the liquid, it is necessary to increase the gas velocity and irrigation density. Then the gas velocity and irrigation density have approximately the same effect on the intensity of mass transfer in the gas and heat transfer in the liquid. When studying the effect of the geometry of the plate on the kinetic coefficients of heat transfer in the liquid and mass transfer in the gas, it was established that the value of the portion of the free cross section of the plate has a decisive influence on the value of the considered kinetic coefficients. A generalized equation was built, which makes it possible not only to calculate the enthalpy transfer coefficient during the interaction of sodium chloride solution with air but also to determine the limiting stage of this process. The results could be used to design a unit for concentrating a hot solution of sodium chloride by evaporating water during blowing with air in a contact heat exchanger. This would make it possible to obtain crystalline sodium chloride using secondary energy resources and other non-traditional sources of thermal energy

show abstract