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Oil heater design
Daxner, Ján ; Toman, Filip (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with the design of heat exchangers for crude oil heating. The first part deals with the theoretical basis of heat transfer, heat exchanger properties and oil properties. In the second part, a design of two heat exchangers was developed. In the first variant, oil was placed in the pipes and steam was placed on the shell side. For the second variant, the media placement has been swapped. The design part consists of the design of the geometry of the tubes, the shell, and the baffles. Furthermore, thermal, and hydraulic calculations were performed. At the end, the proposed variants were compared, and a more advantageous design was selected.
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Design concept of the facility for the educational objectives of the boiling crisis
Vojáčková, Jitka ; Škorpík, Jiří (referee) ; Martinec, Jiří (advisor)
This thesis deals with a design concept of the facility for the educational objectives of the boiling crisis. In the first part, the issue of boiling crisis is explained. There are also examples of some experimental facilities in the world. The second part includes design concept of a loop, which is accompanied by designs of individual devices, such as separator, condenser, exchanger, pump, water tank, electric heater. The thesis also states designs of throttle control, temperature control and flow control.
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Solving of off-gas cooling system for removing contained solvents
Blažek, Pavel ; Kilkovský, Bohuslav (referee) ; Jegla, Zdeněk (advisor)
Diploma thesis deals with searching of the most appropriate solution of air mass cooling to clear away contained solvents. The solution is based on real and operated pharmaceutical unit. The cooling system is solved as systém of three tubular heat exchangers. In the first heat exchanger the air mass is cooled down by water, in the second by ice-cold water and brine R32 is used for cooling in the third heat exchanger. Heat exchanger system is solved for cooling the air mass which results in condensation of contained solvent – acetone.
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Strength calculation of heat exchanger tubesheet with focusing on economic evaluation
Horniak, Patrik ; Vincour, Dušan (referee) ; Buzík, Jiří (advisor)
This bachelor thesis is focused on strength design of assigned shell-and-tube heat exchanger. This heat exchanger have fixed tube sheets and straight tubes. Designed tube sheet is integrated with shell and flanged to the channel. First part of the thesis serves as introduction on the issue of heat exchangers and tube sheets. Following chapters are dedicated to the strength design of tube sheet thickness based on the ČSN EN 13 445 standard. These chapters are dealing with input parameters, basic requirements of calculation, equations essential for calculation of stress in heat exchanger and analysis of stresses in heat exchanger with the use of proper strength conditions. Conclusion of these chapters is evaluation of calculated results from personal scipt written in Python language using Spyder environment. Correctness of these results is ensured by their comparison with the output of Visual Vessel Design (VVD) program. Final part of the thesis is economic evaluation of whole tube sheet design based on possibility of choosing different analyzed material.
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Heat exchanger design to improve the efficiency of industrial plant
Hofbauer, Jan ; Kilkovský, Bohuslav (referee) ; Freisleben, Vít (advisor)
In thesis is done thermal-hydraulic design of cross-flow tubular heat exchanger for combustion air preheating. In software Chemcad is done simulation of technological unit based on known operating data, which is used for behavior prediction of unit after heat exchanger installation. Then there are discussed essential mechanisms of heat transfer. After that there is overview of different heat exchanger types used for combustion air preheating. Before particular design there is performed optimalization of heat duty of heat exchnger based on payback time. Thermal-hydraulic design is performed using F-LMTD method in software GNU Octave. Obtained results are verified using software HTRI Xchanger Suite®. At the end there are discussed economical and ecological benefits of designed heat exchanger.
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Design caclulation of fatigue of tubular condenser
Cablková, Zuzana ; Vincour, Dušan (referee) ; Pernica, Marek (advisor)
The diploma thesis is devoted to the design of the fatigue calculation of the tubular steam condenser with fixed tube sheets, which is in operation as a safety equipment for the steam condenser from the turbine. This device is loaded with temperature and pressure that induces tension. Due to the possibility of frequently starting it up to the operational state and going down to the rest state, stress cycles can occur. The practical part of the thesis is the design calculation, carried out according to ČSN EN 13445–3 standards using the finite element method, abbreviated FEM. The theoretical part of the diploma includes a search of available standards for evaluating the fatigue life of heat exchangers, basic knowledge regarding the issue of fatigue damage and cases of real fatigue damage in practice.
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Oil heater design
Daxner, Ján ; Toman, Filip (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with the design of heat exchangers for crude oil heating. The first part deals with the theoretical basis of heat transfer, heat exchanger properties and oil properties. In the second part, a design of two heat exchangers was developed. In the first variant, oil was placed in the pipes and steam was placed on the shell side. For the second variant, the media placement has been swapped. The design part consists of the design of the geometry of the tubes, the shell, and the baffles. Furthermore, thermal, and hydraulic calculations were performed. At the end, the proposed variants were compared, and a more advantageous design was selected.
|
|
|
Heat exchanger design to improve the efficiency of industrial plant
Hofbauer, Jan ; Kilkovský, Bohuslav (referee) ; Freisleben, Vít (advisor)
In thesis is done thermal-hydraulic design of cross-flow tubular heat exchanger for combustion air preheating. In software Chemcad is done simulation of technological unit based on known operating data, which is used for behavior prediction of unit after heat exchanger installation. Then there are discussed essential mechanisms of heat transfer. After that there is overview of different heat exchanger types used for combustion air preheating. Before particular design there is performed optimalization of heat duty of heat exchnger based on payback time. Thermal-hydraulic design is performed using F-LMTD method in software GNU Octave. Obtained results are verified using software HTRI Xchanger Suite®. At the end there are discussed economical and ecological benefits of designed heat exchanger.
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Strength calculation of heat exchanger tubesheet with focusing on economic evaluation
Horniak, Patrik ; Vincour, Dušan (referee) ; Buzík, Jiří (advisor)
This bachelor thesis is focused on strength design of assigned shell-and-tube heat exchanger. This heat exchanger have fixed tube sheets and straight tubes. Designed tube sheet is integrated with shell and flanged to the channel. First part of the thesis serves as introduction on the issue of heat exchangers and tube sheets. Following chapters are dedicated to the strength design of tube sheet thickness based on the ČSN EN 13 445 standard. These chapters are dealing with input parameters, basic requirements of calculation, equations essential for calculation of stress in heat exchanger and analysis of stresses in heat exchanger with the use of proper strength conditions. Conclusion of these chapters is evaluation of calculated results from personal scipt written in Python language using Spyder environment. Correctness of these results is ensured by their comparison with the output of Visual Vessel Design (VVD) program. Final part of the thesis is economic evaluation of whole tube sheet design based on possibility of choosing different analyzed material.
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Design concept of the facility for the educational objectives of the boiling crisis
Vojáčková, Jitka ; Škorpík, Jiří (referee) ; Martinec, Jiří (advisor)
This thesis deals with a design concept of the facility for the educational objectives of the boiling crisis. In the first part, the issue of boiling crisis is explained. There are also examples of some experimental facilities in the world. The second part includes design concept of a loop, which is accompanied by designs of individual devices, such as separator, condenser, exchanger, pump, water tank, electric heater. The thesis also states designs of throttle control, temperature control and flow control.
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