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Methods for liquid-gas separation
Matoušek, Jakub ; Touš, Michal (referee) ; Vondra, Marek (advisor)
This diploma thesis is devoted to the separation of liquid from gas. Functional principles and methods for the separation of droplets from the gas phase stream are presented in the introductory part. The research also lists the types of separators and mist eliminators, including their advantages and disadvantages. Cyclone separators are described in detail in the thesis in terms of the separation principle, design and factors influencing the efficiency of separation. The experimental activity took place on salt water and dealt with finding the optimal operating conditions for a cyclone with a given geometry using the method of Design of experiments (DOE). The vapor-liquid mixture generated in the evaporator entered the cyclone and the effect of salt concentration and inlet flow rate on the separation efficiency and pressure drop of the cyclone was investigated. Experimentally, the highest efficiency of 97.22% was achieved at a flow rate of 8.59 kg/h and with a salinity of water supplied to the evaporator of 14,246 µS/cm. The quality of the distilled water was therefore 5 µS/cm. Without the inclusion of a cyclone, the conductivity of the condensed steam would correspond to 175.31 µS/cm. In the final part, a proposal for modifications of the tested equipment was presented to improve the separation efficiency within the evaporator technology.

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