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Comparison of trucks of selected power range
Effenberk, Jan ; Šařec, Petr (advisor) ; Balada, Ivo (referee)
The main purpose of this bachelor thesis is to compare semitrailer trucks made by major European manufacturers. Maximum engine power of compared vehicles is limited to 340 kW. Secondary aim of this thesis is provision of theoretical knowledge of key mechanisms and issues of modern trucks. The thesis is devided into two main parts. The first one includes history and development of road transport and trucks. Basic technical terms and legislation are described there as well. Following chapters are dedicated to brief characteristic of mechanisms and their types. The second part of this thesis focuses on truck comparison according to selected parameters using chosen method of multi-criteria analysis. The thesis is concluded with results evaluation, ranking of each truck and discussion about certain issues.
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Analysis of the operating characteristics of modern agricultural machinery
Michal, Tomáš ; Mimra, Miroslav (advisor) ; Šařec, Petr (referee)
The bachelor thesis deals with analysis of significant working properties of current agricultural machinery, especially tractors. The work includes classification and description of basic traction parameters (velocity, drawbar pull, power, slip) and specific fuel consumption. In the next, the work includes elaboration of differences between other types of running gear of tractors and describes progressive trends in the design of the most important elements of gearboxes and engines. The bachelor thesis also analyses the effect of mean contact pressures of running gear on soil profile, machinery weight distribution and tractor´s total loading. The practical part includes elaboration of a multi-criteria analysis for agricultural company Zemědělská výroba a obchod Novák s.r.o. Outputs results precisely describe the technical parameters and operating characteristics of selected tractors, thus two types of tractors with different engine power can be recommended the company.
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Influence of application of activators of vital soil functions on selected soil characteristics at ZS Sloveč, a.s.
Novák, Václav ; Šařec, Petr (advisor) ; Šařec, Ondřej (referee)
This thesis covers issues of soil physical properties changes after the application of farmyard manure, industrial fertilizers or substances which aim for improvement of vital soil properties. The first part of the thesis is focused on soil issues and besides other things it covers types of soil degradation or physical soil properties. In the next part of the thesis there is a focus on substances which improve physical soil properties. Biochar and other representative products of company PRP Technologies are described in this part. The practical part of this thesis describes selected properties changes which have arisen after a year of field trials in company Zemědělská společnost Sloveč, for example changes in traction or penetration resistance. The last part includes the summary of results, conclusion and the recommendation of author.
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Comparison of road and rail freight transport according to selected criteria
Hráský, Zdeněk ; Šařec, Petr (advisor) ; Žemličková, Nikola (referee)
The final thesis is comparison of transport of goods by rail freight and road transport. In the begininng of the thesis are information about transportation including basic notions. Historical development in Czech Republic follows. After short descrtiption of development of transport, partical ways of transportation are detailed elaborated. Important part of this thesis is describrion of combined transportation. Combined transport terminals are explained in detail. Chapter of this thesis is about innovating ways of transhipment in transport terminals, not only in Czech republic but also abroad. Another charter is dedicated to comparison of economy, ecology and charging of rail freight and road transport. Model situation with equation three routes were processed. On those mentioned routes is applicated rail freight separately, trucks separately and combination of both previous routes.
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Overview of powered industrial truck utilization
Samcová, Eva ; Šařec, Petr (advisor) ; Altmann, Vlastimil (referee)
This thesis deals with the distribution of motor-handling equipment in the category and its common use. Ingestion of unusual conditions, special truck and evaluating appropriate tire choice. There are the types of additional equipment that can be placed instead of forks or directly to the fork and is incorporated herein by subsequent modification of the normal use of a motor truck after adding equipment. The thesis presents a comparison of the different categories of motor trucks ever since the two companies and firms Cesab and Linde.
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Comparison of tractors of power range up to 200 kW
Svatoš, Ondřej ; Šařec, Ondřej (advisor) ; Šařec, Petr (referee)
Aim of this bachelor thesis is to apprise the reader with wheeled tractors, which are available to buy on the market. In the first part there is explained a brief history of tractors, structural parts of tractors and technologies used in the modern agriculture machines. The second part of this task is focused on comparison of five selected tractors of power range 150 to 200 kW. The last part is a summary of the comparion and conclusion.
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