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Airplane Cooling System Optimization
Lajza, Ondřej ; Fiľakovský, Karol (referee) ; Horák, Aleš (referee) ; Píštěk, Antonín (advisor)
Dissertation thesis is focused on the aircraft cooling system optimization. The knowledge of the pressure loss is necessity for design of an optimal system. In the beginning of the thesis, the different designs of piston engine cooling systems are described for both aircrafts and automobiles. Other sections outline the determination of the coolers characteristics and describe the different test sections applicable for the characteristics measurement. The test section built at the Institute of the aerospace engineering is described as well. Practical part of the thesis describes the calibration of the test section. The measurements of the specific coolers were compared with the CFD simulation of two models - the simplified cooler model and cooler element model. Additionally, the measurements were compared with results obtained at specialized coolers testing facility.
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Optimization of cooling of a family house by using a geothermal system
Buchta, Jan ; Formánek, Marian (referee) ; Šikula, Ondřej (advisor)
The master’s thesis deals with optimization of cooling system of family house using borehole heat exchanger as a single cooling source. In the experimental part of the thesis was carried out long-term mearurements. The main part of the master’s thesis is the development and verification mathematical and physical model of thermal behavior chilled room. The result are computer simulations and evaluation of individual scenarios and design requirements for a potential optimization of measurement and control system. The theoretical part generally deals with radiant cooling systems.
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Condensing steam turbine
Martynek, Filip ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
Content of this thesis is design of one-housing condensing steam turbine with two uncontrolled extractions. First part is describing design of balance scheme. Including cycle joints calculation, design of equipment for whole steam and condense cycle. Thesis continues with preliminary and detail design of regulativ stage. Main goal of this part is thermodynamic calculation of flow channel. Second part is describing lubricating oil and cooling system. Contains process description of lubricating oil scheme including calculation, specification of components and pipe branches design. Diploma thesis is finished with detail lubricating oil scheme.
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Use of High-pressure Cooling System for Long-turn Machines
Kinc, Jiří ; Kouřil, Karel (referee) ; Sedlák, Josef (advisor)
The thesis describe high-pressure cooling system and present experiment, when is using this cooling technology for turning cylindrical workpiece to long-turn machines. Workpiece manufactured using high-pressure cooling system is compares with Workpiece manufactured using low-pressure cooling system. Results are analyzed, evaluated and plotted in a single graphical relationships. The thesis is completed the analysis, discussion and recommendations regarding the using of high-pressure cooling.
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Formula Student cooling system
Krmíček, Antonín ; Böhm, Michael (referee) ; Šebela, Kamil (advisor)
This bachelor thesis deals with cooling system of Formula Student vehicle with electric drive. The Thesis is divided into three main parts. The first part describes reasons and requirements for cooling, the limits of components and methods of their cooling. The next part is focused on analysis of cooling of single-seater Dragon e1, which obtains the inputs to the design part. Design part contains calculations of losses in inverter and electric motors. The parameters of exchangers and assembly of the cooling circuit are determined. The request is that the operating temperatures are not exceeded during the races. By obtaining more accurate inputs to the calculations, the optimal parameters of the proposed components are achieved.
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Autonomous liquid storage with cooling system
Boch, Jan ; Kaczmarczyk, Václav (referee) ; Husák, Michal (advisor)
This bachelor thesis deals with the design of an autonomous liquid storage cell with a cooling system. The cell is part of a larger project called the Self-Acting Barman. The cell follows the basic principles of Industry 4.0 and is also an example of a batch process according to the ANSI / ISA-S88 standard. At the beginning, the theoretical part describes important ideas and principles related to this project. The next chapter then discusses the construction design of the cell and its physical implementation. Parts were modeled in the Siemens NX program and subsequently these parts were created using 3D printing technology. In the next chapter the individual instrumentation used in the cell is described. In the last two chapters, the electrical connection of the whole cell and the software of the cell are then discussed. The cell wiring diagram is created in the E-Plan program and the cell software was created in the Siemens TIA Portal program.
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Ground-source heat pump
Kovářík, Tomáš ; Horák, Petr (referee) ; Počinková, Marcela (advisor)
Master’s thesis deals with the theme in three parts theoretical, practical and experimental. Project deals with heating nursery school and experiment deals with capacity reduction borehole heating exchanger for ground – source heat pump.
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Cooling systems of battery vehicle
Šimáček, Daniel ; Hvožďa, Jiří (referee) ; Bartuli, Erik (advisor)
This bachelor thesis deals with the issue of cooling systems for electric vehicles. The first part is devoted to the theoretical description of the components producing the largest part of the heat - the battery and the electric motor. Heat transfer theory is also mentioned to better relate the cooling issues. The second part focuses on the description of the current cooling approaches for the electric vehicle components - battery and electric motor. The section on electric motor cooling includes a comparison of cooling approaches with the internal combustion engine. Alternative cooling methods are described in next section.
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