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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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Vehicle Hydropneumatic Unit
Koudelka, Roman ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This diploma thesis, following the bachelor's thesis, is devoted to the gas-liquid unit of a vehicle, as the central element of hydropneumatic suspension. The aim is to dimension and construct this component and integrate it together with other elements into a complex suspension system. Based on possible forms listed in the research section, regarding to current development trends, the form of the unit is chosen. The practical part begins with simulations comparing a hydropneumatic with a conventional suspension system. After solving this issue, it is possible to proceed to the dimensioning of the basic parameters of the unit and then to its construction, respecting the relevant strength calculations. The last step is to build a conceptual design of the whole hydropneumatic suspension system.
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A study of liquids behavior in rotating vessel
Tuhý, Marek ; Šedivý, Dominik (referee) ; Fialová, Simona (advisor)
The presented bachelor thesis deals with the study of liquids behaviour in rotating vessel. The aims of the thesis are theoretical analysis and recherche of the behaviour of liquids in a rotating vessel, design and construction of an experiment, its implementation and evaluation. The hydrostatic knowledge was found in the theoretical part, the practical part was placed in the laboratory of fluid engineering on the assembled experimental track.
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Pulse flow of liquid in flexible tube
Komoráš, Miroslav ; Šedivý, Dominik (referee) ; Klas, Roman (advisor)
This master’s thesis is dealing with analysis of fluid flow pulse in a flexible tube representing e.g. an artery in a human body. In ANSYS program, 3D simulations were performed, and these are so-called interrelated FSI analysis. In Maple software, 1D simulations of fluid flow in the tube were performed for various thin-walled and thick-walled variants. The aim is using these programs to determine the flow rates and pressures in the tube, its wall deformation and stress. Therefore, the theoretical part deals mainly with basic equations of flow dynamics, linear and nonlinear models and rotationally symmetric vessels. In the computational part are described individual procedures in the mentioned programs.
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Sensor for low-speed continuous motion sensing
Tomášek, Petr ; Slavík,, Lubomír (referee) ; Fiala, Pavel (advisor)
Diploma thesis analyses low-speed flow measurement. Thesis consist of 4 chapters. First chapter is about liquids and its attributes, flow meters, especially induction flow meter, which is very important for designed sensor. In second chapter is detailed process of designing sensor. Description of realization and measurement of flow is in the third chapter. Result summary is in conclusion.
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Temperature control in the liquid thermostat using Atmel ATmega328 microcontroller
Hanulík, René ; Šandera, Josef (referee) ; Adámek, Martin (advisor)
This bachelor‘s thesis familiarizes reader with the issues of temperature control and measurement in the enviroment of liquid thermostat. Thesis describes some kinds of temperature sensors, their physical principes and choices of using them. There is also described properties of ATmega328 controller and communication resources. This thesis deals with implementation of bath thermostat controller unit and describes his software equipment together with PC controlling application.
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Vehicle Hydropneumatic Suspension
Koudelka, Roman ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
The main task of this bachelor’s thesis is introduction of readers with main principles of hydropneumatic suspension. The introductory part, which aims to outline the historical background of the system, continuously follows the description of the principle of its function. This part also contains the typical features of this suspension system. This type of suspension is used at different types of vehicles, the specific applications are mentioned in the next chapter. The last section is about designing suspension for special military vehicle.
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Stanovení teplotních závislostí motocyklových olejů
Ondrášek, Petr
This thesis deals with the determination of temperature dependence of motorcycle oils. A review of literature contains knowledge of fluid mechanics, partition information, use, appropriate selection and analysis of lubricants including their production and historical development. It is also characterized by a chapter dealing with the recycling of lubricants, including legal claims needed to be placed on the market. There is also a chapter on the lubricating circuit of motorcycles. The practical part of the detailed specification used oil samples, including technical parameters motorcycles from which they were taken. The data needed for evaluation was obtained by measurement with a rotary viscometer DV2T and apparatus for measuring the density Densito 30 PX. The values so obtained were graphically using Microsoft Excel 2010 for application of a suitable mathematical model.
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Use of available resources for the experimental measurements of the dynamics of bubbles and microbubbles
Spalová, Karolína ; Vondrášek, David (advisor) ; Bažant, Filip (referee)
Title: Use available resources to experimental measurements of the dynamics of bubbles and microbubbles. Objective: Find out available devicesfor use in simple experiments observing the dynamics of bubbles or microbubbles. Methods: Literature review of decompression theory and related. Mathematics and theoretical methods for determining the critical bubble size. Endsure the available devices. Using simple experiment to measure the bubbles size. Collect of value and analysis. Results: Available devices used for simple experiment in laboratory conditions. During the experiment, it was possible to observe the dynamics of bubbles in mascroscopic size. For the measurement of microbubbles in the critical areas of growth is need to use device with a higher magnification. Keywords: Press, liquid, air bubble, scuba diving, decompression.
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Self-excited and forced pulsations of liquid in axisymmetric domain
Skopalová, Kristýna ; Habán, Vladimír (referee) ; Pochylý, František (advisor)
The diploma thesis deals with the determination of the self-excited and forced pulsation of the real fluid in the cylindrical area and in the annulus. It also focuses on a case of resonance that has an unfavorable effect on the hydraulic circuit. The result of the thesis is the analytical relations for determination of self-excited and forced shapes of flow and pressure in the closed cylindrical area, for two selected variants of kinematic excitation. In the first variant, excitation is performed in the form of a sinus function. The second variant is expressed as a sawtooth function. A pulsation of the fluid caused by the movement of the body is described for the annulus. Further, in this area, the shapes of fluid pulsation are solved without external excitation.
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