Publication detail

Identification of Basic Thermal Technical Characteristics of Building Materials

ŠŤASTNÍK, S. VALA, J. KMÍNOVÁ, H.

Original Title

Identification of Basic Thermal Technical Characteristics of Building Materials

English Title

Identification of Basic Thermal Technical Characteristics of Building Materials

Type

journal article - other

Language

en

Original Abstract

Modelling of building heat transfer needs two basic material characteristics: heat conduction factor and thermal capacity. Under some simplifications these two factors can be determined from a rather simple equipment, generating heat from one of two aluminium plates into the material sample and recording temperature on the contacts between the sample and the plates. However, the numerical evaluation of both characteristics leads to a non-trivial optimization problem. This article suggests an efficient numerical algorithm for its solution, based on the weak formulation of certain initial and boundary problem for the heat transfer equation, on the classical Fourier analysis and on the Newton iterative method, and demonstrates its practical application.

English abstract

Modelling of building heat transfer needs two basic material characteristics: heat conduction factor and thermal capacity. Under some simplifications these two factors can be determined from a rather simple equipment, generating heat from one of two aluminium plates into the material sample and recording temperature on the contacts between the sample and the plates. However, the numerical evaluation of both characteristics leads to a non-trivial optimization problem. This article suggests an efficient numerical algorithm for its solution, based on the weak formulation of certain initial and boundary problem for the heat transfer equation, on the classical Fourier analysis and on the Newton iterative method, and demonstrates its practical application.

Keywords

measurement of thermal properties, thermal conductivity, thermal capacity, Fourier analysis, numerical algorithm

RIV year

2007

Released

01.11.2007

Publisher

Institute of Information Theory and Automation of the ASCR, v.v.i.

Location

Prague

ISBN

0023-5954

Periodical

Kybernetika

Year of study

43

Number

3

State

CZ

Pages from

561

Pages to

576

Pages count

16

Documents

BibTex


@article{BUT44944,
  author="Stanislav {Šťastník} and Jiří {Vala} and Hana {Kmínová}",
  title="Identification of Basic Thermal Technical Characteristics of Building Materials",
  annote="Modelling of building heat transfer needs two basic material characteristics: heat conduction factor and thermal capacity. Under some simplifications these two factors can be determined from a rather simple equipment, generating heat from one of two aluminium plates into the material sample and recording temperature on the contacts between the sample and the plates. However, the numerical evaluation of both characteristics leads to a non-trivial optimization problem. This article suggests an efficient numerical algorithm for its solution, based on the weak formulation of certain initial and boundary problem for the heat transfer equation, on the classical Fourier analysis and on the Newton iterative method, and demonstrates its practical application.",
  address="Institute of Information Theory and Automation of the ASCR, v.v.i.",
  chapter="44944",
  institution="Institute of Information Theory and Automation of the ASCR, v.v.i.",
  journal="Kybernetika",
  number="3",
  volume="43",
  year="2007",
  month="november",
  pages="561--576",
  publisher="Institute of Information Theory and Automation of the ASCR, v.v.i.",
  type="journal article - other"
}