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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Analýza změn parametrů zážehového motoru při změně oktanového čísla paliva
 Puchnar, Lukáš
Diploma thesis focuses on fuel for spark-ignition engines and their operational cha-racteristics. First chapters of the thesis focus on requirements of these fuels and their production, followed by details analysis of the octane number, ways of measuring it and demands towards the octane number for usage in modern petrol engines. Next part describes individual fuel types used to run spark-ignition engines and their pros and cons. Analysis of exhaust emission particles produced during fuel combustion and it's regulation is covered in the next part. Final chapter provides a comparison of the in-fluence, octane number of the fuel has on the vehicle performance, based on data mea-sured in certified rollway test room. The results of the measurement were used to pro-duce tables and charts to visually display them.
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Alternativní pohony motorových vozidel
 Puchnar, Lukáš
This Bachelor thesis focuses on the possibilities of using alternative fuels to operate the vehicle. In the first chapters, there is a review of fossil fuels used, its properties and monitored emission parameters. The following section is devoted to gas fuels, problems associated with the storage in the vehicle and engine modifications. Further are descri-bed biofuels, its production and application in combustion engines. Subsequently the electric vehicles is briefly described, current state and performance characteristics of this type of vehicles. The distribution of hybrid vehicle propulsion systems follows. The final section focuses on the economic comparison of selected alternative drives, its af-fordability and costs of operation.
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