Relevant bibliographies by topics / Procesní kapaliny

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  1. Dissertations / Theses

Academic literature on the topic 'Procesní kapaliny'

Author: Grafiati
Published: 28 June 2021
Last updated: 1 February 2022

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Dissertations / Theses on the topic "Procesní kapaliny"

1

Holý, Jan. "Řezné kapaliny a jejich použití při obrábění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229089.

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This master‘s thesis is concentred on analyse propertie’s of cutting fluids. Here is pointed on their influence on the cutting process. Also here are shown modern trends and influence cutting fluids on economics and ecology.
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2

Vnuková, Zuzana. "Vliv mazacích kapalin na průvodní veličiny tváření závitů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444293.

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The main task of this work was to compare the being used process fluids in mechanical engineering with a focus on polymer and additive fluids. Selected polymer and nanoadditive fluids were compared based on a thread forming test, during which different concentrations of individual fluids were tested. All data from experiments were evaluated, assessed in terms of their properties, and recommended for further practice.
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3

Zaremba, Matouš. "Experimentální analýza procesu rozpadu kapaliny u šumivé trysky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-370740.

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The thesis deals with experimental research of mechanism of liquid breakup at twin-fluid atomizers. Four different atomizers were examined at the beginning of the research. Two of them were of standard design (Y-jet and effervescent nozzles), and the rest two atomizers were developed as a part of the thesis (so called CFT and inversed effervescent atomizers). Results show that only the inversed effervescent atomizer was capable of generating stable spray under examined conditions due to the specific breakup mechanism. This mechanism is similar to what was observed in effervescent atomizers. However, the mixing process inside the inversed effervescent atomizer is very different. The specific breakup mechanism was then defined as the main scope of the thesis. It was investigated by the high-speed imaging. The images were then processed by proper orthogonal decomposition and by fast Fourier transformation. Spray spatial development was examined using phase Doppler anemometer. The data was analyzed to describe the dynamics of the spray. A detailed description of the breakup mechanism is made from the combination of the experimental and post-processing techniques. The thesis brings new insight into the understanding of the liquid breakup mechanism and shows a potential for a further development of the inversed effervescent atomizer.
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Sedláková, Eva. "Technologická a ekonomická analýza výroby součástí pro automobilový průmysl." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401046.

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The thesis deals with an analysis of an existing technology of thread forming under various technological parameters used in car industry. Furthermore, it characterizes metric threads, their production and quality control, forming taps, process fluids and other process parameters. In the experimental part the experimental tests with a conventional and CNC drilling machines were carried out. The influence of various process fluids on surface and thread quality have been assessed statistically. The technical-economic evaluation of the process fluids and their effect on the technology has been made. The work supports a beneficial role of soap and polymers as convenient tribological means at thread forming.
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5

Pazdera, Lukáš. "Hodnocení řezivosti vybraných procesních kapalin v aplikaci MQL." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230808.

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Práce se zabývá mazáním za použití minimálního množství maziva, tzv. MQL. Cílem práce je experimentálně porovnat řezivost 4 různých řezných olejů. Oleje se v práci nazývají A, B, C a D, protože z důvodu utajení nemohou být zveřejněny jejich skutečné označení. Řezivost olejů bude testována při ortogonálním řezání na soustruhu a vrtání. Pro oba druhy operací budou použity 2 obráběné materiály: Korozivzdorná ocel AISI 316L a hliníková slitina EN-AW 7020. Měřené parametry během pokusů budou řezné síly, maximální teplota a drsnost obrobeného povrchu. Experimentální části předchází část teoretická. V této část jsou shrnuty poznatky týkající se problematiky procesních kapalin, aplikace MQL při obrábění, ortogonálního řezání, vrtání zmíněných materiálů a měření sil a teploty.
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6

Kubín, Jan. "Řízení funkcí kvality a trasování v procesu výroby nádrží pro brzdovou kapalinu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316207.

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The content of this thesis is a theoretical description of quality control and tracking in discrete manufacturing, its use in making control concepts, specification of the hardware, description of the communication between the devices and the PLC, and the creation of the PLC control software used for the supervision and marking of containers for brake fluid. The last part of this thesis is the implementation of the created algorithms into a real device and subsequent commissioning of the entire control line.
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7

Vostřel, Josef. "Technologické, ekonomické a ekologické aspekty obrábění za sucha." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228551.

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Using of process liquids improves the procedure and results of machining, on the other hand, increases costs and raises some ecological and hygienic issues. In the work there is gradually analyzed mechanism of chip formation, progress and distribution of heat and thermal fields as well as economic and ecological aspects of dry machining and influence of dry machining on durability of tools. In the experimental part there are evaluated data which were measured during the drilling of cylindrical workpiece with regards to progress of workpiece thermal fields while using various kind of tool coating. In the final part there are stated recommendations for practice.
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8

Roupec, Jakub. "Mezní a degradační procesy magnetoreologických tlumičů odpružení." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-233963.

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This work deals with the research of degradation of magnetorheological (MR) fluid during long-term loading under conditions that correspond to the real load in the linear MR devices such as dampers. The behaviour of MR fluid is described by a Bingham model of viscoplastic fluid. The parameters of this model are the yield stress and viscosity. Their values are determined by the shear rate from 1 to 2,8104 s-1. Results of durability tests show a significant decrease in viscosity of MR fluid, a gradual increase in yield stress in the off-state and a significant decrease in MR effect. The paper also described the effect of temperature on these parameters and there is also designed a method of non-assembly diagnostic of the MR fluid state in the damper using the "rate of pulsation."
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9

Krobot, David. "Výběr vhodného uspořádání toku pracovních látek s laminárním režimem proudění v trubkovém chladiči." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228625.

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This master’s thesis is devoted to problematic of selection of suitable flow directions in double pipe heat exchanger. First chapter is oriented to the construction of tube heat exchangers. It is also discussed impact of construction solution to the flow character and changing of his process parameters. The difference between parallel and countercurrent flow is also occurred in this parts. The next chapter is focused to the basics of heat-hydraulic calculations of heat exchanger. This also means explanation of ways of heat transfer and heat exchanger function. There are told about specific access to the solving problem of fluid laminar flow. The third chapter is detailed focused to the calculating of heat exchanger. At first is discussed factors, which have impact to the flow character. Next are detailed descriptions of design and controlling calculations, including more alternative ways to solve it. Next chapter exploit those results for deciding, which flow arrangement will be better for given case. Last chapter contain realization and reformulating of process heat exchanger calculating to the program code in Maple. There is also description of used algorithms and operating with them, so any user could be able to work with it. In this master’s thesis are used many examples from attached programs on different parts.
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10

Horsák, Jan. "Verifikace modelu pro predikci vlastností spalovacího procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231498.

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This work thoroughly analyzes a previously created computational model for predicting characteristic properties of the combustion process in an experimental combustion chamber. Any found shortcomings of the original model are removed and the model is further improved prior to its application on 11 real cases of combustion tests performed at various conditions and with various fuels. Data provided by the model are confronted with the data obtained during the combustion tests and the model accuracy is evaluated, based on local heat flux along the length of the combustion chamber. Finally, the overall usefulness of the model is determined by the means of evaluating the acquired accuracy values, and further possibilities of model improvement and use are presented.
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