Thematische Bibliographien / Potrubia / Dissertationen
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Dissertationen zum Thema „Potrubia“

Autor: Grafiati
Veröffentlicht am 28. Juni 2021
Zuletzt aktualisiert am 8. Februar 2022

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1

Mikula, Jakub. „Lomové chování svařovaných polyolefinových trubek“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231097.

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Cílem této diplomové práce je řešit problematiku poškozování svařovaných polyolefinových potrubí. Prezentovaná práce je zaměřena na numerické modelování kvazi-křehkého porušování, které je přímým důsledkem šíření creepové trhliny. Svařování polyolefinových potrubí vnáší do oblasti svaru nehomogenní rozložení materiálových vlastností a tvar svarového výronku způsobuje vznik geometrických koncentrátorů napětí. Posouzení těchto vlivů na životnost svarového spoje a výpočet polyolefinových potrubí je hlavním cílem této práce. V práci je uveden popis několika experimentálních testů (především CRB a PENT) k určení materiálových vlastností popisujících kinetiku trhliny. Výsledky práce jsou prezentovány pro polyetylenové potrubí (PE 100 110 x 6.3 SDR 17.6). Polyetylen je jeden z nejčastěji používaných materiálů právě v oblasti potrubních systémů. Prezentované výsledky práce mohou být použity i pro jiný polyolefinový materiál. Predikce životnosti polyolefinových potrubí je založena na lineárně elastické lomové mechanice (LELM) a koncepci faktoru intenzity napětí. Diplomová práce doplňuje tuto metodologii výpočtu životnosti o výpočet svařovaných polyolefinových potrubí z pohledu lomové mechaniky s náznakem možnosti budoucího výzkumu.
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2

Božik, Michal. „Systém common rail pro šestiválcový vznětový motor“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231341.

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This thesis deals with the installation of high-pressure common rail injection system for six-cylinder tractor diesel engine. In the first part of the thesis is dismantled issue injection systems and related aspects. The next part is the installation of a fuel injection system, which involves placing components common rail system, the implementation of necessary interventions in engine design and the design of new components. The final section effect control calculations and stress analysis of new injection system components.
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3

Majer, Jan. „Výpočet potrubní trasy parovodu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241223.

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This thesis describes issues related to design and structural analysis of steam pipeline. Analysis are done by using two different software program – AutoPIPE and Ansys. Issues related to pipeline support system and thermal expansion are solved by using AutoPIPE. Structural analysis results are evaluated in accordance with ČSN EN 13 480 code.
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Jahodová, Miroslava. „Pevnostní návrh potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231082.

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The subject of this thesis is strength design of pipe connecting furnace of continuous catalytic reforming with reactor. First is realize analytical design of individual parts according to ASME VIII, ČSN EN 12952-3 a ČSN EN 13480-3. It is also design and optimize supporting pipe using Caesar II. At the end of work is creating isometric documentation.
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5

Pavličík, Lukáš. „Sací potrubí jednoválcového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231694.

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The aim of this diploma thesis is to create a thermodynamic computational model of a single cylinder IC engine for the Formula SAE car. The single cylinder SI engine KTM 500 EXC is considered as a powertrain unit. The intake manifold of the serial enduro motorcycle is modified according to the Formula SAE 2014 rules. Analysis of the one dimensional flow is performed by using Lotus engine simulation software.
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6

Adamec, Martin. „Návrh řešení potrubní sítě v energetice“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229382.

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This diploma work is aimed at a proposal and an overall controll of the pipeline net. There is a preliminary calculation performed (by the analytical method) in this diploma work. There is also a comparison with the numerical computing to find out whether the pipe branch does or does not comply.
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Butek, Petr. „Návrh řešení potrubní sítě procesní jednotky“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228947.

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The master’s project deals with the pipeline systems of process unit. The design of the industrial pipeline is usually extensive and complex task interwoven with a lot of technical disciplines. Diploma thesis is focused on the strength calculation of the pipeline specified by the ČSN EN standard. The main goal of the calculation is appraisal of the most stressed parts under operating and testing conditions. The diploma thesis is handled with the key aspects that influence the overall concept of the pipeline design as well as the strength calculation.
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Kotas, Jakub. „Parní turbína - návrh potrubní trasy kondenzátu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417534.

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The master thesis deals with the design, tracing and dimensioning of condensate pipeline. In the beginning, a preliminary calculation of heat balance is done. It is followed by a description of the main condensate system supplemented by the computational design of pipeline and the calculation of pressure losses in this pipeline. The crucial part of the thesis is the calculation of pressure losses, which is done in two ways. The first approach to calculation of pressure losses in the pipeline is calculated using values of representative resistance coefficient for pipe ele-ments using Idelchik literature and for individual types of valves using values from datasheets of Siemens Energy suppliers. In the second approach to calculation representative resistance coefficients for pipe elements and individual types of valves CRANE literature are used. Then both approaches of choosing representative resistance coefficients are compared and evaluated. Based on the calculated values, a suitable pump is selected at the end of the master thesis.
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9

Jahn, Jiří. „Potlačení turbulentního proudění v potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444297.

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This thesis deals with ways to suppress turbulent flow in pipelines. In the first part various methods of laminarization are presented, when the turbulent flow is transformed into laminar flow, including the results of experiments published by the authors. The next part presents the results from CFD. The calculations were performed for one of the methods mentioned in the first part and the results were compared with each other. In addition, several options have been suggested to improve the original method.
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10

Novosad, Zdeněk. „Sací potrubí zážehového závodního motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228744.

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The aim of this diploma thesis is design shape and length of intake manifold on dynamic flow in the intake manifold and filling efficiency of engine. It was used a method of reverse engineering 3-D scanner Atos and modeling in Pro/Engineer designer for creating a CFD model. The test of intake manifold was created by Rapid prototyping method. In the first part of this diploma thesis is described intake manifolds used in current cars.
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11

Vondráček, Václav. „Optimalizace sacího potrubí zážehového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229680.

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The main aim of this diploma thesis is to design two different types of air throttles in the intake manifold and compare their influence on a loss of dynamics of the flow of drawn air. The main purpose is to compare the mass flow for wholly opened air throttle. It deals with creating CDF model of intake manifold by using 3D scanner Atos and software Pro/Engineer WF5. During the work, the results of the CFD analysis were used for a real testing.
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12

Bartoš, Tomáš. „Výfukové potrubí motoru formule Student“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230338.

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The aim of this diploma thesis is the design and tuning of the exhaust manifold and muffler for the Formula Student car. The single cylinder atmospheric spark ignition engine Husaberg FE 570 is used as a powertrain unit. The exhaust system is designed according to the Formula Student rules. To design the exhaust system has been used as theoretical knowledge as well as software Lotus Engine Simulation.
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13

Ševčík, Miroslav. „Výfukové potrubí pro motor BMW“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-255792.

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This master´s thesis describes design and optimalization of the exhaust mainfold and an effective muffler for BMW 320i E30 car. This car is equipped with 6 cylinder engine M20B20. The construction is carried out with regard to the rules laid down by FAS Czech Republic. I used theoretical knowledge and Lotus Engine Simulation software in this thesis.
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14

Hofírek, Michal. „Modelování tlakových pulsací v potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318683.

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This diploma thesis deals with problem of water hammer in pipes affected by viscoelastic behavior of pipe material. Mathematical model uses pressure dependent speed of sound in water air mixture. For purpose of numerical solution the Method of Characteristics with independent time step is introduced. This method is compared with commonly used methods such as Method of Characteristics (MOC) and Lax Wendroff scheme. Derived model, solved with Method of Characteristics with independent time step, is verified with experimental simulation.
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15

Dohnal, Milan. „Kontrolní pevnostní výpočet napojení potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378406.

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The master thesis focuses on the strength calculation of piping with extra consideration given to the local effects of thermal loads. To be recognized as properly functioning, the piping is required to withstand the expected operating conditions in order to enable the continuous transport of the working fluid within the interconnected devices. It is imperative to take into consideration the variable thermal load in the area where the individual pipe branches connect into the main transmission piping. A major part of the thesis is concerned with the assessment of the expected workload influence on the most stressed parts of the system. The data are gathered by employing temperature and stress-strain analyses carried out in the ANSYS Mechanical program using the finite element method. The values based on the analyses are cross-checked with both the permitted values according to the ASME standard B31.3 Process piping and the ASME Boiler and Pressure Vessel Code stress categorization method. Since all the evaluated stresses are below their respective permissible values, the piping strength is concluded as satisfactory according to the standards.
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16

Vávrovec, Jiří. „Optimalizace sacího potrubí zážehového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228906.

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This thesis focus with construction design intake manifold of four stroke engine rallyecross division 1A. For improvement observant come into operating here derive benefit from theory tuned supercharging, which is based on tuning longitudes sucking conduit. Derive benefit woolen effect. Driving unit is here used four cylinders, water-cooled, atmospheric combustion engine from car VW Polo 6N GTI. Design is created so, to answer condition division 1A.
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17

Prášek, Martin. „Optimalizace výfukového potrubí zážehového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229372.

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The master thesis is focused on optimizing existing or proposal for a new exhaust tracts on the Volkswagen Polo moving series rally-cross A1 division. The car is powered by concern, water-cooled, atmospheric engine capacity 1599 ccm. To achieve the objectives of the lessons are applied as a theoretical nature (analytical calculation), especially the advanced approaches of the software environment from the firm Lotus. Exhaust treatment systems are designed to suit all rules FIA Sports Association.
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Foral, Martin. „Optimalizace sacího potrubí zážehového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228432.

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The work deals with design solutions to the intake manifold modern contemporary internal combustion engines. Then describes the types of flow and structural design of ports, including the intake of their basic properties. The thesis also compare the results of the analysis and design optimization based on simulation of flow inlet port and measure the actual inlet port.
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19

Seriš, Richard. „Simulace řízení provozu teplovodu s dlouhým potrubím“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229664.

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The objective of this diploma thesis is to design a model of long heat pipeline operation control using Matlab software. The model should simply correspond to real heat pipeline system Melnik – Praha. After this, simulate operation control of sets of pumps. The role is to simulate usual and critical modes of operations. After evaluation of results, optimize the conditions for operation control of this system.
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20

Košťál, Josef. „Posouzení tepelně-mechanické únavy výfukového potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-418196.

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Tato diplomová práce se zabývá posouzením tepelně-mechanické únavy výfukového potrubí. Nejprve byla provedena rešeršní studie, ve které je rozebrán fenomén tepelně-mechanické únavy. Byly prezentovány hlavní mechanismy poškození a přístupy k jejich modelování. Diskutována byla i specifická chování materiálu vystavenému tepelně-mechanickému zatěžování. Byl vypracován přehled vhodných modelů materiálu a modelů únavové životnosti společně s algoritmem predikce tepelně-mechanické únavy komponenty. Poté byl tento teoretický základ aplikován na praktický případ výfukového potrubí podléhajícího tepelně-mechanickému zatěžování. Dva tepelně závislé elasto-plastické modely materiálu byly nakalibrovány a validovány na základě experimentálních dat. Byl vytvořen diskretizovaný konečnoprvkový model sestavy výfukového potrubí. Model tepelných okrajových podmínek byl předepsán na základě výpočtů ustáleného sdruženého přestupu tepla. Slabě sdružená tepelně-deformační úloha byla vyřešena metodou konečných prvků pro oba modely materiálů. Bylo použito paradigma nesvázaného modelu únavy, které je vhodné pro nízkocyklovou únavu. Životnost byla tedy vyhodnocena jako součást post-procesoru. Použity byly dva modely únavové životnosti – energeticky založený model a deformačně založený model. Získané hodnoty životnosti byly porovnány vzhledem k použitým modelům materiálu a modelům únavové životnosti. Nakonec jsou diskutovány závěry této práce, oblasti dalšího výzkumu a navrženy možnosti na zlepšení použitých přístupů.
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Vlasák, Bohdan. „Ztráty v potrubí průtokem směsných substrátů“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228576.

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Introductory part of this thesis is aimed on theoretical description, principle and building of biogas stations, which require solution of many different problems. A specific group of the problems concern transport of mixed substrates of different concentrations both in and outside the area of biogas station. A major part of the substrate transport is done by pumping it in pressure pipeline. Experimental work consists of design and description of a measuring circuit. Graphic characteristics for water and gas loss levels are drawn from the measured readings. Multiples of pressure losses by flowage of substrates with different levels of dry basis are graphically expressed with a help of correction coefficients.
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22

Andrys, Michal. „Optimalizace výfukového potrubí přeplňovaného zážehového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228907.

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Abstract Michal ANDRYS Optimalization of Exhaust Manifold for SI Turbo Engine DP, IAE, 2010, 67 pp., 75 fig. The Diploma thesis is oriented on the design of exhaust manifold for si turbo engine. It specifies suitable manifold connection to the separate branches, folowed by CFD analysis.
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Brezanský, Vít. „Návrh výfukového potrubí formule Dragon 3“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230524.

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Main goal of this thesis is to design exhaust manifold for Formula Student car Dragon 3. Construction parameters follow requirements on high engine power and also have to meet some restrictions given by competition rules. Lotus Engine Simulation software was used for modelling the engine (originally from Husaberg FE 570 motorcycle) and for determination of influence of the exhaust parameters on power characteristics. This thesis is also dedicated to noise emitted by the exhaust system which is important due to Formula Student rules.
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24

Jelínek, Jan. „Nelineární analýza ztráty stability spalinového potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241689.

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This thesis deals with the nonlinear analysis of stability loss of flue gas pipe. This pipe is a part of desulphurization line. The thesis describes the creating of a simplified FEM model. It also describes the setting of the boundary conditions of the model for few loading cases. These cases differ by preference for one of the load as dominant. There are proposed several variants of stiffening by light ring stiffener. The work is finished by comparing the resistance to the stability loss of the reinforced variants and unreinforced model of flue gas pipe.
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25

Šimíček, Petr. „Sací a výfukové potrubí motoru V8“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318645.

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The master´s thesis is focused on the design of the intake and exhaust ducts for V8 engine. Home work is focused on the description of the construction of the intake and exhaust pipes for a given engine. Another part deals with creating a thermodynamic model of the engine, and the design of the intake and exhaust pipes. The last part deals with verifying the proposed pipeline construction.
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Kocák, Tibor. „Predpříprava a svařování tlakových hliníkových potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318704.

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The project is an analysis of technology production of pressure pipes made of aluminum alloys. The basis is a literary study of TIG technology, aluminum heat-tretable and non-heat-treatable materials. The flange-material is EN AW 5083 and the pipe is made of EN AW 6005A. The design of the welding is compromise between the preparation, the cleaning of the welding edges and the weld metal backing strip. Weld was made in real production. Examined impacts are evaluated on the basis of destructive and non-destructive welding test methods. After heating process of weldment material exhibits better mechanical properties. Using the economical and technological evaluation were selected sutiable proces parameters. The result is a suitable weld of the pressure vessel. Further optimization is possible through automation and robotics.
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Jančík, Jan. „Lineární analýza ztráty stability spalinového potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241227.

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The diploma thesis deals with the loss of stability of thin-walled flue pipe at coal power plant. The problem of thin-walled structures is their propensity to the loss of stability due to abnormal conditions, for example a vacuum, effect of wind, snow and earthquake. The purpose is to find the optimal deployment of reinforcements so that the model meets the requirements of EN 1993-1-6. This required an evaluation of unreinforced version of the model to identify weaknesses and subsequently other configurations for the application of reinforcement. For determining the resistance the flue pipe to the loss of stability used primarily to access linear bifurcation analysis based on linear analysis, possibly materially nonlinear analysis. The result of work is a design of reinforcement of pipeline which under the requirements of the standard meets the latest model with a reserve of approximately 20 %.
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Pavlíček, David. „CFD modelování mísení kapalin v potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-387733.

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This work is focused on computational modelling of mixing fluids in pipeline with static mixers. Main objective is to analyze several selected static mixers in a particular industrial application, namely dosing of the aluminium sulphate solution in the clarification process for potable water treatment. The analysis focuses on the degree of mixedness and pressure loss of individual mixers. Further, the aim of this work is to process the search of available types of static mixers. The benefit of this work is at least an effort to motivate the reader to deeper understanding of the mixing fluids, especially by static mixers.
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Ekr, Jan. „Analýza působení termoplastových potrubí v zemním prostředí“. Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-401599.

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The doctoral thesis deals with an analysis of thermoplastics pipes in a soil environment, in particularly, pipes performed by using trenchless technologies. In the doctoral thesis, experiments of polyethylene pipes loaded by external hydrostatic pressure were performed. The aim of the experiments was to determine a behaviour and load-bearing capacity of the polyethylene pipes loaded by external hydrostatic pressure. For the experiments, a steel pressure chamber was designed and produced which allowed loading and observing a pipe during its loss of the stability. Mechanical properties of the pipe material were determined based on the tensile and bending tests. The series of detailed numerical analyses of the pipe experiments were performed. Various material models which take into account elastic, plastic and viscous behaviour of thermoplastic materials were used. In addition, series of standardized calculations of polyethylene pipes installed using trenchless technologies were performed. The aim was to create new design diagrams for practical assessment of these pipes placed in the partially deteriorated old pipes. In the case of the deteriorated old pipe, a numerical model for determination of design coefficients was created. These design coefficients were verified with standard values. Then, the results of the numerical model were compared with the results of the more complex numerical model which better take into account pipe-soil interaction of various soil types.
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Mráčková, Martina. „Statické řešení vodovodního potrubí při bezvýkopové technologii“. Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226466.

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The paper provides an overview of the most widely used trenchless technologies and the possibility of their utilization for laying new thermoplastic pipelines. It analyzes the static behavior of thermoplastic water pipes placed into the existing steel pipes using relining technology. The program system ANSYS is used as a tool for static solution of pipelines. Obtained results are compared with conventional approaches.
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31

Chlíbek, Lukáš. „Návrh výfukového potrubí pro vůz Formule SAE“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228025.

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Diploma thesis is bent on engineering design exhaust manifold for motor Formula SAE. Drive unit is here used atmospheric water-cooled gas- engine from motorcycle Yamaha YZF R6, 2005 model year. The design of the exhaust manifold is drawn to fulfil Formula SAE conditions.
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32

Dušek, Vojtěch. „Svařování potrubí z korozivzdorné oceli a titanu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318698.

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This master's thesis deals with the selection and evaluation of the appropriate welding technology for stainless steel and titanium alloys. Describes advantages and disadvantages of selected technologies. The experiment compares the mechanical properties, the heat input and the resulting surface structure of the welded samples. In conclusion, the thesis deals with the technical - economic evaluation of selected welding technologies.
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33

Kratochvíl, Adam. „Algoritmus pro detekci úniku média z potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413267.

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The thesis deals with the presentation of an overview of the methods used for leak detection set by technical standards. Following the analysis of the pressure records from the pipeline, a new method is proposed, which is based on existing methods and uses the determination of the direction of arrival of the wave directly at the measurement station. The proposed concept was subsequently developed in Matlab, where the ability to detect was also verified. The whole algorithm was then implemented in programmable logic controllers and a suitable communication between them was designed. The entire solution was then tested in terms of functionality.
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34

Kubiš, Milan. „Optimalizace sběrného výfukového potrubí Škoda 1,2 MPI“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-230446.

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The subject of this diploma thesis is optimalization of exhaust manifold of ŠKODA 1,2 MPI engine with respect for the plastic deformation at heat stress. The first part is focused on general description of converter module, whose component the exhaust manifold is. In the next part of the thesis is computation of a heat load of the exhaust manifold. The last part is devoted to the seal analysis of the whole converter module of a ŠKODA three-cylinder engine.
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35

Konečný, Lukáš. „Plnicí potrubí s proměnným průřezem pro 16V motor“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231308.

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Aim of the diploma thesis is to design intake ducting with variable cross-section for 16V diesel engine consisting from divided intake manifold and divided ejector. Cross-section variability is ensured by a swirl flap placed in the divided ejector. Next aim of thesis is to provide drawing documentation for production of samples. For designing was used PTC Creo system and software GeomCaliper. Also was taken account of manufacturing of the parts with sand-casting, especially to guarantee trouble-free taking out of models from the moulds, and taking out of cores from core moulds, and also for machinability of some elements. Introduction of thesis is focused on diesel engine emissions and ways of their reduction.
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36

Kacálková, Eva. „Numerické modelování hydraulických ztrát v potrubí ve 3D“. Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240044.

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The bachelor´s thesis deals with numerical modelling of energy losses in pipes in 3D. It shows the process of creation of mathematical model, used mathematical equations and numerical methods of their solution. The theory is applied on the creation of pipe model and their energy losses with using different turbulent models.
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37

Beran, Vojtěch. „Využití nalepovacích tenzometru pro stanovení tlaku v potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318144.

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This master´s thesis deals with determination of pressure in the pipe using foil strain gauge. It is calculation of the pressure from the measured strain. The main purpose of this work is devise mathematical-technological models to determinate internal pipe pressure from longitudinal deformation. Devised models were used on data from realized experiment and results were compared with real value of pressures in pipes. This thesis contains three models which were mutually compared. Sensitivity analysis were done on two of these models. Thesis also contains opening research of strain gauge problematics. Description of basic knowledge of physical objects mechanic with focusing on shells also belongs to this theoretical part.
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38

Koksa, David. „Sací a výfukové potrubí motoru pro nákladní automobil“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378010.

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The master’s thesis is focused on creating a thermodynamic model of the diesel engine for heavy commercial vehicle. After the model was created, new intake and exhaust pipes are designed based on simulations. Those proposed pipes variants are compared with the series design. After evaluating individual variants, the final version of the new pipes is selected and 3D model for this version is created.
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Hladký, Maroš. „Napěťová, deformační a spolehlivostní analýza vyhřívaného složeného potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230985.

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Diplomová práca je zameraná na napäťovú a deformačnú analýzu elektricky vyhrievaného potrubia a príslušných častí. Cieľ práce je analýza častí potrubia samostatne a vo vzájomnom pôsobení voči medzným stavom, a zistenie maximálneho dovoleného zaťaženia. Potrubie je analyzované voči medznému stavu pružnosti a maximálnej dovolenej deformácií. Podpora je analyzovaná s cieľom nájsť adekvátne zaťaženia a silové reakcie počas inštalačnej fázy. Nakoniec je vyšetrované vzájomné pôsobenie. Potenciálne prekročenie daného medzného stavu je diskutované v adekvátnej kapitole.
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40

Wojcik, Rudolf. „Sací potrubí zážehového motoru na CNG o výkonu 140kW“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231036.

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The master´s thesis is focused on the design of the multi-point CNG injection for the VW 1.4 TSI intake manifold turbocharged spark ignited engine. The 3D model that was created using Autodesk Inventor Professional 2012 is based on the real intake manifold. This model served as an input for CFD analyses of mixing CNG with air. These were made in STAR-CCM+ software.
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Chuchma, Ondřej. „Návrh a optimalizace sacího a výfukového potrubí zážehového motoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229134.

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This Master’s thesis is focused on design and optimalization of intake and exhaust system of the C20XE engine. It is four-cylinder gasoline engine with stroke volume of two litres, which was produced by car company Opel. This engine is determined for Opel Astra F automobile, that is build for racing. For optimalization of dimension parameters there is used a Lotus Engine simulation software, which simulates one-dimension gas flowing in manifold. 3D CAD models are made in Pro ENGINNER software.
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42

Ošťádal, Michal. „Návrh čerpadla a potrubní trasy pro zajištění vyšší bezpečnosti jaderné elektrárny“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443200.

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The main goal of the diploma thesis is to design the hydraulic part of the new piping system, which is added to the existing project of the Dukovany Nuclear Power Plant. At the beginning of the work is theoretical basis for the design of the hydraulic part. The next part is the selection of piping material for aggressive refrigerant with subsequent verification of the pipe wall thickness. The piping system is designed with specific components from the companies SIGMA GROUP a.s., ARAKO spol. s.r.o. and ARMATURY Group a.s. In the last part, hydraulic solution is developed and commented using the excel program. The piping system is processed into the drawing documentation including bill of materials.
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43

Kuderjavá, Zuzana. „Zásobovanie EÚ energetickkými zdrojmi z Ruska a kaspického regiónu - potrubná doprava“. Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-1862.

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Diplomová práca sa zameriava na súčasné a projektované trasy produktovodov z Ruska a kaspického regiónu do EÚ.Popisuje výhody a nevýhody jednotlivých projektov z ekonomického, politického a sčasti technického hľadiska. Zároveň pojednáva o pravdepodobnom vývoji závislosti EÚ na ruskej rope a zemnom plyne v časovom vymedzení do roku 2030.
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Kuderjavá, Zuzana. „Zásobování Eu energetickými zdroji z Ruska a kaspického regionu: potrubní doprava“. Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-13876.

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Diplomová práca sa zameriava na súčasné a projektované trasy produktovodov z Ruska a kaspického regiónu do EÚ.Popisuje výhody a nevýhody jednotlivých projektov z ekonomického, politického a sčasti technického hľadiska. Zároveň pojednáva o pravdepodobnom vývoji závislosti EÚ na ruskej rope a zemnom plyne v časovom vymedzení do roku 2030.
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45

Polášek, Jan. „Turbínová skříň turbodmychadla VNT s oddělenými pulsy ve výfukovém potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-318679.

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This master thesis deals with the design of the turbine housing of turbocharger VNT for supplying separated pressure pulses from the exhaust manifold. Subsequently, the work includes strength analysis of the designed turbine housing. The aim of the thesis is to create components for the supply of separate pressure pulses as close as possible to the turbine. Furthermore, the modification of the existing turbine housing and the assessment of the functionality of the VNT mechanism after this modification and strength analysis. The final aim of this thesis is the creation of 2D and 3D technical documentation of newly designed and modified parts.
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46

Vostrčilová, Markéta. „Sledování vlivu olověných potrubí na kvalitu pitné vody u spotřebitele“. Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372159.

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The thesis is divided into several parts. At first, there are written information from the laws and decrees concerning the lead pipeline, drinking water, observance of lead concentrations in drinking water, etc. Then the water connection, the ownership relations to the connection and the materials used for the water connection are defined. The next chapter deals with lead, lead pipeline, lead in drinking water and the legislative requirements for lead content in drinking water. Other part is about the health risks of lead in drinking water. These theoretical parts follow the practical part, which focuses on drinking water quality testing, which was in contact with the lead pipeline. This section describes drinking water sampling principles for determining the concentration of lead, the locations where the samples were taken, the methods used to determine the concentration, the description, the results and the evaluation of the information. The last chapter shows the methods and materials that remove lead from water.
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47

Halabrin, Robin. „Optimalizace zjednodušeného okružního potrubí pro 5-ti dýzovou vertikální Peltonovu turbínu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229486.

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This diploma thesis deals with hydraulic optimization of distribution pipeline for 5 nozzle Pelton’s turbine by using CFD. The thesis is a follow-up to a previous diploma thesis which deals with the possibilities to simplify existing distribution pipeline. A few simplified versions of distribution pipelines were solved and the results show which way we should proceed towards the right solution. The simplified distribution pipeline arises from given parameters and retains the same procedure of evaluation to give us the opportunity of comparing achieved results. Two new geometries of distribution pipeline were created. They were then modified to achieve optimal distribution of discharge in each nozzle. Other criteria used for comparison were static pressure and Coriolis’ number in specific slices inside pipeline. Last but not least a simple economical analysis for selected version of distribution pipeline was carried out on the basis of which we can see the manufacturing costs of the pipeline.
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48

Suchomel, Radoslav. „Zásady a navrhování projekčních zpracování kotelních ostrovů se zaměřením na potrubí“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228923.

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The Thesis solves the issue of a design and construction of piping specifically focused on boiler apparatus and its equipment. This issue is important for creation of the piping classes in the (PDMS) programmes and for acceleration of output parameters which are mainly the temperature, materials, variable parameters, etc. This leads to other problems such as service life, security, economy, etc., are.
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49

Shtanko, Elizaveta. „Problematika fungování potrubní přepravy v rámci světových obchodních operací s plynem a ropou“. Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-114373.

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Under the current intensive development of the world economy, there is a significant increase in integration of strategic sectors in countries towards the regional and international networks. Therefore, the potential of pipeline transport begins to take special foreign economic and geopolitical importance. The current status and development of this field is the object of an increased interest of all parties that are involved in the transport of raw materials. The more trades there are with oil and gas, the more issues related to its transport are occurred which all parties involved in the transport system faced to deal with. In the context of rapidly developing interconnection of global economies on regional level along with its undeniable reflection on international situation, it makes the functioning of already existing system of pipelines and realization of new projects related to construction of pipelines, with issues of economic, ecological and technical character that play an important role in delivering strategic energy products to world markets. At the same time the strong competition for the construction of pipeline facilities increases its geopolitical significance.
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Borek, Jan. „Postup opravy ropovodu při odstávce“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227931.

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This thesis is focused on a crudeoil pipeline repair technology at the dead plate. The thesis is devided into 4 basic parts (chapters). The openning chapter describes reasons for performing regular pipeline inspections regarding pipeline's defects and technology of defects repair. The second chapter is devoted to the particular repair technology - cut out of a damaged pipeline part and its replacement by a new pipeline piece - with a detail description of preliminary and consenquential assembly activities (safety and environmental aspects). This chapter also comprises a list of documents confirming technical qualification and readiness for repairs execution. The third chapter is aimed at proposition and verification of the welding method by means of non-destructive and destructive testing of a test circumferential weld according to the proposed weld procedure specification – WPS. There are presented the results of particular tests and complex evaluation of the welding process design by the inspection organization. The last, fourth chapter deals with a calculation of general costs of repair execution which is an important part of a final pricing.
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