Žilinská univerzita v Žiline

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    Analýza vplyvu konštrukčného riešenia batériového packu na chladenie batérií počas prevádzky
    (University of Žilina, 2023) Hlbočan, Peter; Csuka, Zoltán
    The contribution is focused on the analysis of some possible approaches to the design of air cooling of the battery pack. The battery pack is equipped with a separate fan. As part of the analysis, the influence of the location of the fan in the pack and the direction of the cooling air flow on the cooling effect and the temperature field during operation were assessed. The result of the analysis is a specific recommendation for the location of the fan in the battery pack and the design of the air flow direction.
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    THE IMPACT OF TEMPERATURE AND WEAR ON LI-PO ACCUMULATORS DISCHARGE CHARACTERISTICS
    (Žilinská univerzita v Žiline, 2020) Kubáč, Tomáš; Hospodka, Jakub
    The goal of this paper was to find out how the ambient temperature affects the discharge characteristics and the useful energy density of lithium polymer accumulators. Also, to identify how these parameters are affected by age and wear of these accumulators. Li-Po accumulators are the most used energy source for small unmanned aerial vehicles. It is very important to know limitations of this energy source to allow efficient and safe usage. Especially these days, when these machines are being introduced into many industries. It has been found that low temperatures have a negative impact on the available accumulator capacity, especially the older ones. High temperatures, on the other hand, only slightly increased the capacity of the new accumulator. The old accumulator was affected more, higher temperatures helped to increase its available capacity. Using information gathered form this paper would help them use Li-Po accumulators more efficiently and save money on new ones because of increased life time.