PROCESSES INTENSIFICATION OF HEAT-MASS TRANSFER IN THE SYSTEM «DROP OF SULFURIC ACID — HEATED GAS». SELECTING OF EFFECTIVE APPARATUS FOR EVAPORATION OF LOW CONCENTRATED H2SO4 SOLUTIONS

  • A.B. Helesh Lviv Polytechnic National University, Lviv
Keywords: hydrolytic sulfuric acid, evaporation, exhaust gases miscarriage, mathematical modeling, математичне моделювання

Abstract

The conditions of heat and mass transfer of sulfuric acid drop which moves in the gas stream are described. It was established that within the studied parameters most drops are aerodynamically stable. The effect of the intensification factors (initial temperature and drop velocity) on single drop evaporation is researched. It is shown that evaporation of sulfuric acid solutions in hollow columnar apparatus is inefficient. The technologically appropriate regime of evaporation is proved theoretically. It is shown that multiple liquid dispersion and high values of relative drops speed significantly reduce the duration of evaporation. Mathematical relations for indicators calculation of heat and mass transfer processes in the system «drop of sulfuric acid — heated gas» are obtained. The choice of an effective system for evaporating of sulfuric acid solutions is justified. The new technical solutions that enable efficient recuperation of low-temperature energy of gas emissions and utilize hydrolytic sulfuric acid. Bibl. 10, Fig. 2, Table 6.

Author Biography

A.B. Helesh, Lviv Polytechnic National University, Lviv

Candidate of Technical Sciences

References

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Published
2015-12-20
How to Cite
Helesh, A. (2015). PROCESSES INTENSIFICATION OF HEAT-MASS TRANSFER IN THE SYSTEM «DROP OF SULFURIC ACID — HEATED GAS». SELECTING OF EFFECTIVE APPARATUS FOR EVAPORATION OF LOW CONCENTRATED H2SO4 SOLUTIONS. Energy Technologies & Resource Saving, (5-6), 54-62. Retrieved from https://etars-journal.org/index.php/journal/article/view/170
Section
Thermophysical basics of energy processes