Publication detail

Study of PCM material diffusivity

ZMEŠKAL, O. NEŠPŮREK, S. DOHNALOVÁ, L.

Original Title

Study of PCM material diffusivity

Type

conference paper

Language

English

Original Abstract

The paper deals with the application of multi-regression analysis for the determination of thermal parameters from transient responses to step wise heat power imput. The dependences of thermal diffusivity a, thermal conductivity, heat source quality parameter s, and heat losses parameter R on time were calculated from different parts of transient responses. The influence of the heat source fractal dimension D (determined from the heat source quality parameter s) on thermal parameters is discussed. The results correlate with the fractal model of heat transport. The dependences of thermal diffusivity on the fractal dimension of PCM differ from PMMA due to the phase change around the temperature 25 C.

Keywords

transient method, fractal model of heat transport, thermal diffusivity, thermal conductivity, specific heat

Authors

ZMEŠKAL, O.; NEŠPŮREK, S.; DOHNALOVÁ, L.

RIV year

2012

Released

31. 10. 2012

Publisher

SAS Bratislava, VUT v Brně

Location

Brno

ISBN

978-80-214-4599-4

Book

Thermophysics 2012 - conference proceeding

Edition number

1

Pages from

258

Pages to

264

Pages count

7

BibTex

@inproceedings{BUT95545,
  author="Oldřich {Zmeškal} and Stanislav {Nešpůrek} and Lenka {Dohnalová}",
  title="Study of PCM material diffusivity",
  booktitle="Thermophysics 2012 - conference proceeding",
  year="2012",
  number="1",
  pages="258--264",
  publisher="SAS Bratislava, VUT v Brně",
  address="Brno",
  isbn="978-80-214-4599-4"
}