|
| |
|
| |
|
| |
|
| |
|
| |
|
|
Market analysis of vehicles with alternative engines
Čermáková, Renáta ; Koubek, Ivo (advisor) ; Hudík, Marek (referee)
Alternative fuel are getting more and more important. The aim of this study is to discover the financial benefits of vehicles with alternative engines for different types of consumers. The consumers are separated to the three groups with 15 000, 25 000 and 50 000 kilometers driven per year. For the calculations is used the net present value method using two estimates of energy prices until year 2020. For comparison, in this text are three types of cars with alternative power, hybrid car, car with LPG engine and electric car. The results show that hybrid car is good for consumers, who travels every year more than 25 000 km. Consumers who travel 15 000 km a year, a car with hybrid drive is worthwhile. LPG powered car is advantageous for all groups of consumers. In contrast, electric car is not advantageous for any group of consumers, mainly for too high prices.
|
|
|
How long would it have to an old Skoda car to drive, that produced as many emissions as produced the production of new environmental car
Jurečková, Šárka ; Bartoň, Petr (advisor)
This thesis covers primarily the detection of operating emission of an old Škoda Felicia car and the emission produced during the manufacturing of a new Toyota Prius, as the selected representative of an ecological car. The thesis also touches on hybrid technology in itself, the question of the greenness of hybrid cars, sphere of emission, but also related problems so called "scrapping" and its influence on environment and also current situation in automobile industry. The target of this study is calculation of operation time of an old Škoda Felicia during which the CO2 emission will reach the same amount of emission produced during manufacturing of a Toyota Prius. The objective is to point out incompetent and therefore not always serious comparison of cars greenness when only the operating CO2 is being compared. Other energy consumption and therefore also the greenhouse gases production is related with the car manufacturing, raw material extraction, petroleum processing and other economic sectors affected by production. Emission laboratory measurement executed by TÜV SÜD Czech discovered that the old Škoda produces 260m/km CO2 during its real running time. For the emission calculation was used an American model EIO-LCA created by Green Design Institute at Carnegie Mellon University that records ecological influence of car production, in stated amount, on all economy sectors. The outputs are quoted in CO2 equivalent. According to this model during manufacturing of 1 hybrid car 13.5 t of CO2e (equivalent CO2). is produced. Recalculation found out that the old Škoda Felicia could run for more than 5 years in order to produce as much emission as the manufacturing of new Toyota Prius third generation.
|
|
|
Ecology and economics of contemporary internal combustion engines
Křesala, Vojtěch ; Zelený, Lubomír (advisor) ; Bartoš, Vojtěch (referee)
This thesis is about contemporary types of engines in individual automobile transportation. Theoretical part contains overview of contemporary automobile engines, interaction of individual automobile transportation and environment, regulations based in law and basics of theory of external costs. In practical part, Toyota Prius with hybrid drive and Toyota Coraolla with internal combustion engine are compared. In calculation of costs for end customer, both vehicles have the same costs per km. If society represented by state is concerned, with external costs included, Toyta Corolla does better, because the difference in income from taxes is higher then difference in external costs. State has no reason why to make any incentives on Toyota Prius.
|
|
|
Commercial and economic comparison of traditional and alternative fuels
Dvořáková, Monika ; Sedláček, Jiří (advisor) ; Kočan, Jakub (referee)
Negative predictions about oil stocks combined with the instability in the Middle East encourage development of alternative fuels, which would reduce dependence of the world's economies on oil. The oil and petroleum derivatives are the main dependencies for vehicular traffic, which contributes to the greenhouse gas emissions by a large part. It is therefore necessary to focus on trying to reduce the fuel consumption of cars used for personal transportation. One way to achieve this goal is, for example, to convert existing cars to run on biofuels, buying a hybrid or an electronic vehicle, or, hopefully soon, hydrogen-powered automobile. Obstacles preventing a wider deployment of such fuels and drive systems are often higher purchase and operating costs. These economic disadvantages are being gradually reduced though, and in the future we can surely expect an increase in the number of alternative vehicles on the roads.
|
|
|
Look into possibility and propose eventually adjustments of combustion engine for hybrid propulsion Biogas and Woodgas
VONDRUŠKA, Michal
Bachelor´s work on the theme ?Look into possibility and propose eventually adjustments of combustion engine for hybrid propulsion Biogas and Woodgas? is contributed to three parts. First part is concerned by methods principals and chemicals process of genesis Biogas and Woodgas and also their features and composition. The second part of work is concerned by selection of suitable combustion engine for hybrid propulsion and necessary adjustments of engine for purpose of guarantee of function. Component of work are also adjustments of Biogas and Woodgas that they are necessary for satisfy ecological criterion for combustion engines and simply economical calculation for purpose state of economical aspect using of combustion engine for hybrid propulsion. The Result of work is estimation of options of using combustion engine for hybrid propulsion of Biogas and Woodgas.
|
guest ::
