Analysis of heat transfer in inflatable sleeping pads

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F15%3A00003028" target="_blank" >RIV/46747885:24410/15:00003028 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of heat transfer in inflatable sleeping pads

Popis výsledku v původním jazyce

Sleeping bags and sleeping pads present inevitable equipment of all sportsman dedicated to mountaineering. Major part of thermal insulation of a person sleeping in a sleeping bag ensures the proper bag, but more than 40% of heat escapes through the sleeping pad (mattress) down to the ground or floor. However, despite the importance of sleeping pads, related research reports are almost missing. In the study, heat transfer mechanisms in hollow sleeping pads filled with the pressure air (to increase theirthickness) and modern sleeping pads additionally filled with porous polyurethane foam is theoretically and experimentally analysed. From the theoretical analysis follows, that sleeping pads filled with porous polyurethane structures exhibit approximately2 times higher thermal resistance then empty inflated pads, due to the reduction of free convection in the internal space of the pads. These theoretical findings were confirmed by the experimental results presented in the paper.

Název v anglickém jazyce

Analysis of heat transfer in inflatable sleeping pads

Popis výsledku anglicky

Sleeping bags and sleeping pads present inevitable equipment of all sportsman dedicated to mountaineering. Major part of thermal insulation of a person sleeping in a sleeping bag ensures the proper bag, but more than 40% of heat escapes through the sleeping pad (mattress) down to the ground or floor. However, despite the importance of sleeping pads, related research reports are almost missing. In the study, heat transfer mechanisms in hollow sleeping pads filled with the pressure air (to increase theirthickness) and modern sleeping pads additionally filled with porous polyurethane foam is theoretically and experimentally analysed. From the theoretical analysis follows, that sleeping pads filled with porous polyurethane structures exhibit approximately2 times higher thermal resistance then empty inflated pads, due to the reduction of free convection in the internal space of the pads. These theoretical findings were confirmed by the experimental results presented in the paper.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

TEKSTIL VE KONFEKSIYON

ISSN

1300-3356

e-ISSN

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Svazek periodika

25

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

TR - Turecká republika

Počet stran výsledku

4

Strana od-do

300-303

Kód UT WoS článku

000369622000003

EID výsledku v databázi Scopus

2-s2.0-84958685523