Tepelně izolační vlastnosti nanovlákenných vrstev
Title Alternative:Thermal insulating properties of nanofiber layers
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Date
2007
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Publisher
Technická Univerzita v Liberci
Abstract
Měření tepelně izolačních vlastností je důležité pro řadu odvětví. Z hlediska prostupu tepla je nejvýznamnější radiační složka tepelného toku. Pro získání ucelené představy o tepelných projevech zkoumaného materiálu je důležité zjistit všechny tři části radiačního tepelného toku, kterými jsou emisivita, transmisivita a reflektivita, v jednom kroku. Proto bylo snahou vyvinout jednoduchou metodu, která by měřila všechny tři vlastnosti najednou.
Measurement of thermal insulating properties is very important for a wide spectrum of industrial branches. The most important component of the heat transfer is radiation. It is necessary to find out all three parts of radiating heat flux which are emissivity, transmisivity and reflectivity preferably in one step to obtain consistent conception of heat characteristics of investigated sample. That is a reason for development of simple method measuring all three parts of the radiating heat flow all at once. This method results from comparison of measured and theoretical data by the help of method of least squares.
Measurement of thermal insulating properties is very important for a wide spectrum of industrial branches. The most important component of the heat transfer is radiation. It is necessary to find out all three parts of radiating heat flux which are emissivity, transmisivity and reflectivity preferably in one step to obtain consistent conception of heat characteristics of investigated sample. That is a reason for development of simple method measuring all three parts of the radiating heat flow all at once. This method results from comparison of measured and theoretical data by the help of method of least squares.
Description
katedra: KNT; přílohy: 1 CD; rozsah: 60 s, 23 s příloh
Subject(s)
reflektivita, emisivita, transmisivita, radiativní tepelný tok, radiace, emissivity, transmisivity, reflectivity, radiation, heat transfer