Browsing by Author "Košek, Marek"

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    Posouzení vlivu spektrálně selektivních povrchů absorbérů na účinnost solárních termálních kolektorů
    (Technická Univerzita v Liberci, 2010-01-01) Košek, Marek; Unger, Jiří
    This diploma thesis is focused on an experimental evaluation of an influence of spectrally selective surfaces of absorbers on the effectiveness of solar thermal collectors. This evaluation was made on the basis of effectivity measurment of the accumulation of solar energy in the samples of several commercially made absorbers placed in the special experimental collector. Among the selective surfaces only little differences were found, while a sample made for this experiment, painted with nonselective black colour, achieved distinctively worse results . The second part focuses on measuring the effectiveness of chosen solar thermal collectors placed in the solar laboratory of KEZ. For getting the evaluation data more easily, a simple software was created within this work. The comparison of measured values with the graphs of effectiveness measured by independent institute SPF was made.
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    Příprava vybraných technických podkladů pro automatickou tvarovací linku
    (Technická Univerzita v Liberci, 2007-01-01) Košek, Marek; Ausperger, Aleš
    The aim of this bachelor thesis is a preparation of technical data for production of spacing for an electric appliance, particularly an elaboration of a theoretical introduction for a technology of thermoforming by using an automatic thermoforming machine, a calculation of heat-balancing and cutting force for separation a product from a intermediate product and a constructional idea of a thermoforming tool. A written theory presents a clear and coherent idea about a technology of thermoforming. Calculations proved that it is possible to make this product according to the prescribed conditions by using this type of machine and during the working time cycle with using proposed tool.
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