Národní úložiště šedé literatury Nalezeno 13 záznamů.  předchozí11 - 13  přejít na záznam: Hledání trvalo 0.00 vteřin. 
Unconventional Cooling Systems for Formula Students
Ondrejka, Filip ; Bartuli, Erik (oponent) ; Kůdelová, Tereza (vedoucí práce)
This master’s thesis deals with the design and manufacture of a heat exchanger with polymeric hollow fibers for a Formula Student vehicle. The work can be divided into three parts. The first part contains a review of heat transfer and heat exchangers, the second part deals with polymeric fiber heat exchangers design and manufacture of of polymeric hollow fibers heat exchanger with a heat exchanger for a Formula Student vehicle. The last part deals with the comparison of polymeric hollow fibers heat exchanger with the original aluminum heat exchanger and the evaluation of the measurement results.
Polypropylene membranes and their use
Strunga, Alan ; Bartuli, Erik (oponent) ; Kůdelová, Tereza (vedoucí práce)
This Bachelor’s thesis is focused on polymeric membranes with additional focus on membranes produced from polypropylene. The main physicochemical properties of the membranes are discussed together with procedures and measuring devices suitable for their determination. Also discussed here are the most common production and modification methods, potential applications in the industry and the drawbacks that still limit widespread use. This works should provide basic information about the applications of hydrophobic membranes within the membrane technology.
Optimization of Heat Transfer Surfaces of Heat Exchangers
Bartuli, Erik ; Dohnal, Mirko (oponent) ; Vinogradov, Andrey Vladimirovich (oponent) ; Raudenský, Miroslav (vedoucí práce)
The thesis focuses on metal and plastic heat exchangers. The main object of the research is the optimization of heat transfer surfaces for increase of heat transfer characteristics of heat exchangers. A computer modeling via ANSYS and experimental research were used for this purpose. A cross-wiring technology for plastic hollow fiber heat exchangers (PHFHE) producing was developed based on modeling and experimental results. An experimental setup used for pressure tanks winding was modified for PHFHE mass production. Heat exchangers for air condition systems were also considered in this work. Example of twisted hollow fiber heat exchanger use in such systems is presented. Influence of thermal cycling test to heat transfer performance of common metal fin-type heat exchanger was also studied.

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