Analýza tepelných ztrát oděvů za podmínek proudění vzduchu
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Diplomová práce je zaměřena na analýzu tepelných ztrát oděvů za podmínek proudění vzduchu. K analýze byly použity tři vrstvy funkčního oblečení od výrobce sportovních oděvů firmy Klimatex. Testované vzorky jsou zvoleny z jednotlivých funkčních vrstev oděvního funkčního systému. První vrstva je tvořena spodním prádlem a termoprádlem. Druhá vrstva je tvořena mikinou, která má pro lepší tepelné vlastnosti vypletenou hřejivou strukturu z rubní strany. Pro spodní část těla jsou použity termokalhoty s počesanou rubní stranou v kombinaci dvou materiálů. Třetí vrstva je lehká polyamidová bunda, opatřena pouze vodoodpudivou úpravou. Tyto oděvy jsou určeny na běžné sporty s mírně zvýšenou aktivitou jako je nordwalking, běh, jízda na kole, bruslení, běžkování, na turistiku i pro fyzickou aktivitu. Měření proběhlo na tepelném manekýnovi Timmy a měřícím zařízení C-THERM TCi. Vzorky byly podrobeny analýze jejich struktury a byla zjištěna jejich prodyšnost a tloušťka. Cílem práce je analyzovat a vyhodnotit vývoj tepelných ztrát při měnící se rychlosti na jednotlivých vrstvách a jejich kombinacích.
In my master thesis I focused on the analysis of heat losses under air flow conditions. Three layers of functional clothing from the sportswear manufacturer Klimatex were used for the analysis. Tested samples are chosen from individual functional layers of garment funtional system. The first layer consists of underwear and thermal underwear. The second layer consists of a sweatshirt, which has a warm structure knitted from the reverse side for better thermal properties. For the lower part of the body, thermal pants with a combed back in a combination of two materials. The third layer is a light polyamide jacket, provided with only a water-repellent finish. These garments are designed for regular sports with slightly increased activity such as nordwalking, jogging, cycling, skating, cross-country skiing, hiking or other physical activity. The measurement was performed on a Timmy thermal mannequin and a C-THERM TCi measuring device. The samples were subjected to an analysis of their structure and their breathability and thickness were determined. The obtained values were analyzed and evaluated for their development with changing speed, individual layers and their combinations. The dependence of material thickness and breathability on the value of thermal resistance was also compared.
In my master thesis I focused on the analysis of heat losses under air flow conditions. Three layers of functional clothing from the sportswear manufacturer Klimatex were used for the analysis. Tested samples are chosen from individual functional layers of garment funtional system. The first layer consists of underwear and thermal underwear. The second layer consists of a sweatshirt, which has a warm structure knitted from the reverse side for better thermal properties. For the lower part of the body, thermal pants with a combed back in a combination of two materials. The third layer is a light polyamide jacket, provided with only a water-repellent finish. These garments are designed for regular sports with slightly increased activity such as nordwalking, jogging, cycling, skating, cross-country skiing, hiking or other physical activity. The measurement was performed on a Timmy thermal mannequin and a C-THERM TCi measuring device. The samples were subjected to an analysis of their structure and their breathability and thickness were determined. The obtained values were analyzed and evaluated for their development with changing speed, individual layers and their combinations. The dependence of material thickness and breathability on the value of thermal resistance was also compared.
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Tepelná izolace, teplo, teplota, tepelná ztráta, tepelný odpor, komfort, třívrstvý oděvní systém, vyhřívaná figurína, C-THERM TCi, Heat insulation, heat, temperature, heat loss, thermal resistence, comfort, three-layer clothing, system heated manikin, C-THERM TCi