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Optimization of EGR system and water injection for gasoline engine
Kertész, Tibor ; Svída, David (referee) ; Bazala, Jiří (advisor)
Naturally aspirated petrol engine, pressure losses, EGR, low-pressure EGR, water injection, power increasing, BSFC, GT-Power, thermodynamic model, engine knock
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Multistage turbocharging of diesel engine
Vichr, Tomáš ; Beran, Martin (referee) ; Svída, David (advisor)
This master thesis summarizes the basic knowledge in the field of turbocharging of internal combustion piston engines. It also focuses on the analysis of some properties of multistage turbocharging, especially for diesel engines. Using analytical relationships, a model in the form of a web application has been created, which describes the cooperation of a turbocharger or turbochargers with an internal combustion engine. With the help of this model, some two-stage supercharging options for the selected engine have been then proposed.
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Supercharging design for a 1.6L SI Engine
Švábíková, Anna ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
This master’s thesis focuses on the problematics of supercharging of SI engines aiming on performance boost. The aim of this thesis is to propose a suitable turbocharger for reaching defined performance goals. A method of successive SI engine modelling process is proposed, using the GT-Power platform. The choice of suitable turbocharger is based on a analytic calculation of required turbocharger parameters. The cooperation of the engine with the chosen turbocharger is verified by simulations. An important part of this thesis is sensitivity analysis, which purpose is to determine the impact of changing chosen parameters on maximum pressure in the combustion chamber and on the exhaust gas temperature.
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Spark-ignition engine for small autonomous devices
Horák, Vojtěch ; Beran, Martin (referee) ; Svída, David (advisor)
The thesis deals with the design of a small-volume four-stroke internal combustion engine with a maximum displacement of 10 cc and a power of 1 kW for autonomous devices of smaller dimensions. In addition to the analysis of individual propulsions for small aircraft, there is also a chapter with the comparison of an internal combustion engine and an electric motor with similar power. Another part of the work is the creation of a thermodynamic model in the GT Power program and its subsequent optimization to increase the overall efficiency of the engine.
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Unconventional range extender of an electric vehicle
Vysloužil, Marek ; Böhm, Michael (referee) ; Drápal, Lubomír (advisor)
This master´s thesis is dealing with the research of range extenders with internal combustion engine and the design of gasoline two-cylinder internal combustion engine with an unconventional parallel arrangement of crankshafts that meets mainly the requirements for low noise production and compact installation. It also describes the creation of a thermodynamic model and kinematic design using GT-Power. The computational part focuses on verifying the suitability of the chosen internal combustion engine concept used as range extender using advanced MBS methods.
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Modern technologies for air conditioning and cooling
Ganczner, Dominik ; Tuhovčák, Ján (referee) ; Lízal, František (advisor)
This thesis provides an overview of modern air conditioning and cooling technologies. Topics of this thesis include different thermodynamic cooling cycles, refrigerants, main components used in air conditioning and cooling units, and a selection of today’s advanced technologies in the field. Furthermore, a selection of discussed technologies are compared to give an idea of their theoretical effects on efficiency.
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Supercharging design for a 1.6L SI Engine
Švábíková, Anna ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
This master’s thesis focuses on the problematics of supercharging of SI engines aiming on performance boost. The aim of this thesis is to propose a suitable turbocharger for reaching defined performance goals. A method of successive SI engine modelling process is proposed, using the GT-Power platform. The choice of suitable turbocharger is based on a analytic calculation of required turbocharger parameters. The cooperation of the engine with the chosen turbocharger is verified by simulations. An important part of this thesis is sensitivity analysis, which purpose is to determine the impact of changing chosen parameters on maximum pressure in the combustion chamber and on the exhaust gas temperature.
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Multistage turbocharging of diesel engine
Vichr, Tomáš ; Beran, Martin (referee) ; Svída, David (advisor)
This master thesis summarizes the basic knowledge in the field of turbocharging of internal combustion piston engines. It also focuses on the analysis of some properties of multistage turbocharging, especially for diesel engines. Using analytical relationships, a model in the form of a web application has been created, which describes the cooperation of a turbocharger or turbochargers with an internal combustion engine. With the help of this model, some two-stage supercharging options for the selected engine have been then proposed.
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Spark-ignition engine for small autonomous devices
Horák, Vojtěch ; Beran, Martin (referee) ; Svída, David (advisor)
The thesis deals with the design of a small-volume four-stroke internal combustion engine with a maximum displacement of 10 cc and a power of 1 kW for autonomous devices of smaller dimensions. In addition to the analysis of individual propulsions for small aircraft, there is also a chapter with the comparison of an internal combustion engine and an electric motor with similar power. Another part of the work is the creation of a thermodynamic model in the GT Power program and its subsequent optimization to increase the overall efficiency of the engine.
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