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Turbocharged 1,2L Spark Ignition Engine
Věříš, Michal ; Svída, David (referee) ; Bradávka, Marek (advisor)
This diploma thesis is focused on performance options for turbocharged 1.2 litre spark ignition engine. First of all, couple of engine variants are compared and the most suitable one is chosen. Production turbocharger is determined upon the calculation of compressor parameters. Simulation in Lotus Engine Simulation and GT-Power is done to confirm co-operation of turbocharger with engine. Two stage serial turbochargers are also compared and the most effective pair is chosen for simulation. Research through the possibilities for increase the power output and the detail focus on turbochargers is also part of this thesis.
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Analysis of turbocharger waste gate
Ondrejka, Adam ; Pohorelský,, Luděk (referee) ; Hadaš, Zdeněk (advisor)
The aim of master’s thesis was to put forward calculation methodology of wastegate turbocharger bypass channel discharge coefficient. Designed methodology was based on discharge coefficient analysis conducted utilizing CFD simulations of turbocharger turbine-side parametric model. It was achieved to propose a calculation, which differentiates relatively in average 1,4% from CFD data. New methodology improves the accuracy bypass channel design and helps to choose appropriate wastegate valve actuator.
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CFD simulation of exhaust gases flow through the wastegate of petrol engines turbocharger
Trška, Andrej ; Čížek, Petr (referee) ; Vančura, Jan (advisor)
Tato diplomová práce se zabývá turbodmychadly a CFD simulací turbodmychadla s integrovaným přepouštěcím ventilem pro benzínový motor. Cílem je poskytnout všeobecný přehled o přeplnování a konstrukci turbodmychadel. Práce popisuje proces tvorby 3-rozměrného virtuálního modelu sestavy turbínové skříně, extrakci negativního objemu plynů, tvorbu meshe a nastavení počítačové CFD simulace, která je v závěru práce vyhodnocena. Výsledky simulace slouží pro návrh odlišného provedení turbínové skříně za účelem zlepšení rozložení teplot výfukových plynů na výstupu a zkrácení aktivační doby výfukového katalyzátoru.
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Diesel Engine Turbochargers
Fňukal, Jan ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
This bachelor's thesis is specialized search dealing with diesel engine turbochargers. The work is divided into four main parts. The first part deals with positives of supercharging, history of turbochargers and principle of supercharging. The second part describes particular construction solution. The third part is focused on systems of regulation. The last part attends to development trends of turbochargers.
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Turbocharging of combustion engines
Kadleček, Jiří ; Beran, Martin (referee) ; Vančura, Jan (advisor)
This bachelor thesis presents the construction and function of the main types of mechanic turbocharging systems. Furthermore, it contains the analysis of regulating elements and the last chapter involves also the description of the newest trends in the field of turbocharging.
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