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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Optimizing controller settings in terms of quality of work gasoline engines E85
 Kotek, Tomáš ; Pexa, Martin (advisor) ; Malaťák, Jan (referee)
The work deals with optimizing the operation of spark ignition internal combustion engine on fuel E85. The theoretical part is devoted to the issue of biofuels in terms of production, distribution and use in internal combustion engines. The experimental part is devoted to the design and verification of the additional control unit (ADU) which solves the optimisation of operation unmodified engine on E85. The first part of the experiment is dedicated to the design and construction of ADU with aim to faultless operation of the engine on E85. The second part of the experiment was devoted to optimisation of engine operation in terms of fuel consumption using dynamic changes of the injectors opening time. Part of the experiments was an evaluation of emissions production and impact on the performance parameters of the engine. The final part of the experiment evaluates the achieved results at the various settings strategy of ADU and compares them with results during engine operation on prescribed fuel N95. By the dynamic change of the injector opening time were reached decrease in fuel consumption by about 5%, reduction in CO production by around 70%, approximately fourfold increase in the production of NOx emissions and about 50% decrease in production of particulate matters.
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