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Modern methods of wet cleaning flue-gas
Kubíček, Jan ; Grolig, Ondřej (referee) ; Dvořák, Radek (advisor)
The main theme of this master’s thesis is to acquaint with flue gas cleaning problems. Also modernization of experimental device called “O-element”, installed in laboratory at Institute of process and environmental engineering, is involved in this master’s thesis. “Oelement is used for cleaning acid elements from flue gas. Further there are results of experimental measuring on this device, and their estimation.
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Opportunities for 3D printing in the process industry
Haltmar, Jakub ; Jegla, Zdeněk (referee) ; Babička Fialová, Dominika (advisor)
This bachelor thesis deals with the possibilities of using additive technologies in the process industry, especially in the field of heat exchangers (heat sinks), membrane distillation and structured packing. In the first part, the thesis provides an overview of the materials and additive technologies used in these process units. The next part is devoted to specific examples of the use of 3D printing in the process applications and their comparison with conventional manufacturing technologies in the world. Furthermore, an overview of supported projects according to the Research, Development and Innovation Information System projects and the market situation in the Czech Republic is outlined. Recommendations for the development of additive manufacturing in the process industry are proposed in the discussion. In the addressed area, process improvements (efficiency, performance or completely new applications) are most often achieved due to the ability of additive manufacturing to produce complex geometries increasing the functional area while maintaining built-up dimensions and materials specific to the process industry.
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Numerical simulation of flow in superpak family packings
Smutek, J. ; Isoz, Martin
The distillation is currently the most energy-intensive technology of the chemical industry. Commonly, the distillation is performed in the columns lled with a structured packing. Structured packings are complex structures used to increase the size of the interface available for the mass transfer. Because of the high complexity of both the packings and the physical phenomena occurring during the distillation, the design of the distillation columns is still based mostly on empirical data. In this work, we concentrate on modeling the gas ow in the SuperPak family of structured packings. First, we propose an algorithm for automatic generation\nof the packing geometry. Next, we construct and validate a three-dimensional computational uid dynamics (CFD) model of gas ow through SuperPak 250.Y and SuperPak 350.Y packings. The model validation is done by comparing experimental data of dry pressure losses to the values computed by our model. The obtained di erence between the CFD estimates and experiments is bellow 10 %. Finally, we present a parametric study of the SuperPak 250.Y packing geometry. The devised modeling approach may be easily automated and used for optimization of the SuperPak type packing geometry with respect to the gas ow. Furthermore,\nthe proposed CFD model may be extended to account for the multiphase ow.
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CFD study of gas flow through structured separation columns packings mellapak 250.x and mellapak 250.y
Isoz, Martin
In order to increase the size of the gas-liquid interface area and consequently the intensity of the mass transfer, the separation columns are usually lled with a geometrically complex packing. The packing highly increases intricacy of the ow in the column and also makes almost all types of hydrodynamic measurements impossible. Hence a reliable model of the ow in the complex geometry of the separation column packing is sought by the industry. We provide a CFD model for the gas ow through two types of commercial structured packings, Mellapak 250.X and Mellapak 250.Y. We validate the model on experimental data and use it to study the gas mixing capabilities of the packings.
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Modern methods of wet cleaning flue-gas
Kubíček, Jan ; Kermes, Vít (referee) ; Dvořák, Radek (advisor)
Research of conditions when sulphure dioxide is absorbed from flue gas, is the main objective of this master's thesis. Efficiency of this flue gas cleaning was measured on an experimental device, which consist of an absorption column filled with structured packing’s, and another component so-called "O-element". Further, a possibility of upgrade this "O-element" to tread more flue gas is presented.
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Modern methods of wet cleaning flue-gas
Kubíček, Jan ; Grolig, Ondřej (referee) ; Dvořák, Radek (advisor)
The main theme of this master’s thesis is to acquaint with flue gas cleaning problems. Also modernization of experimental device called “O-element”, installed in laboratory at Institute of process and environmental engineering, is involved in this master’s thesis. “Oelement is used for cleaning acid elements from flue gas. Further there are results of experimental measuring on this device, and their estimation.
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