Detail publikace

Simple method of thermal parameters determination

MARÁČKOVÁ, L. ZMEŠKAL, O. MENČÍK, P. PŘIKRYL, R. LAPČÍKOVÁ, T.

Originální název

Simple method of thermal parameters determination

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The presented work aims to the describing of method for determination of the thermal properties of the glass The presented work aims to the describing of method for determination of the thermal properties of the glass fibers reinforced polyester composites. The thermal conductivity, specific heat capacity and thermal diffusivity of the estimated materials were observed. All the parameters were determined by the step wise transient method using a differential fractal heat transfer model. From the results were observed the dependence of the thermal parameters on the sample thickness. The thin samples are appropriate for the measurement of the thermal conductivity because homogeneous thermal field in the sample. For larger thicknesses, heat is spread over a smaller area. On the other hand, the thick samples are usable for measurement of the specific heat capacity. For smaller sample thicknesses (small volumes) there are greater heat losses to the surroundings. The correlation between thickness of the sample and its thermal properties were found. The real material thermal parameters were determined by data extrapolation or interpolation. The thermal conductivity of examination composites was estimated in range from (0.15 to 0.20) W/m/K and the specific heat capacity as (2000 – 3000) J/kg/K.

Klíčová slova

Thermal properties; thermal conductivity; specific heat capacity; thermal diffusivity; step wise transient method; differential fractal heat transfer model

Autoři

MARÁČKOVÁ, L.; ZMEŠKAL, O.; MENČÍK, P.; PŘIKRYL, R.; LAPČÍKOVÁ, T.

Vydáno

21. 7. 2022

Nakladatel

AIP Conference Proceeding

ISBN

978-0-7354-4365-5

Kniha

Thermophysics 2021, 26th International Meeting of Thermophysics 2021

Číslo edice

2488

Strany od

020013-1

Strany do

020013-6

Strany počet

6

URL