Publication detail

General model of radiative and convective heat transfer in buildings: Part ii: Convective and radiative heat losses

FICKER, T.

Original Title

General model of radiative and convective heat transfer in buildings: Part ii: Convective and radiative heat losses

English Title

General model of radiative and convective heat transfer in buildings: Part ii: Convective and radiative heat losses

Type

journal article in Web of Science

Language

en

Original Abstract

The present paper represents the second part of the serial publication, which deals with convective and radiative heat transfers in buildings. The algebraic computational method for combined convective-radiative heat transport in buildings has been proposed. The convective transport of heat has been formulated by means of the correlation functions of the Nusselt number. The radiative heat transfer has been specified by using the radiosity method explained in the first part of the serial publication. The system of transcendent equations has been formed to couple the convective and radiative heat transports. The transcendent system has been solved iteratively, which has facilitated to obtain the optimized surface temperatures as well as the optimized values of the coefficients of heat transfer. On the basis of these optimized values, a more precise overall heat loss has been computed and compared with the results obtained from the thermal standard. The strong and weak points of the both used numerical methods have been discussed.

English abstract

The present paper represents the second part of the serial publication, which deals with convective and radiative heat transfers in buildings. The algebraic computational method for combined convective-radiative heat transport in buildings has been proposed. The convective transport of heat has been formulated by means of the correlation functions of the Nusselt number. The radiative heat transfer has been specified by using the radiosity method explained in the first part of the serial publication. The system of transcendent equations has been formed to couple the convective and radiative heat transports. The transcendent system has been solved iteratively, which has facilitated to obtain the optimized surface temperatures as well as the optimized values of the coefficients of heat transfer. On the basis of these optimized values, a more precise overall heat loss has been computed and compared with the results obtained from the thermal standard. The strong and weak points of the both used numerical methods have been discussed.

Keywords

Convective heat transfer; Heat losses; Iterative optimization; Radiative heat transfer; Room envelope

Released

30.06.2019

Publisher

ČVUT

Location

Praha

ISBN

1210-2709

Periodical

Acta Polytechnica

Year of study

59

Number

3

State

CZ

Pages from

224

Pages to

237

Pages count

14

URL

https://ojs.cvut.cz/ojs/index.php/ap/article/view/5375

Documents

BibTex 


@article{BUT158554,
  author="Tomáš {Ficker}",
  title="General model of radiative and convective heat transfer in buildings: Part ii: Convective and radiative heat losses",
  annote="The present paper represents the second part of the serial publication, which deals with convective and radiative heat transfers in buildings. The algebraic computational method for combined convective-radiative heat transport in buildings has been proposed. The convective transport of heat has been formulated by means of the correlation functions of the Nusselt number. The radiative heat transfer has been specified by using the radiosity method explained in the first part of the serial publication. The system of transcendent equations has been formed to couple the convective and radiative heat transports. The transcendent system has been solved iteratively, which has facilitated to obtain the optimized surface temperatures as well as the optimized values of the coefficients of heat transfer. On the basis of these optimized values, a more precise overall heat loss has been computed and compared with the results obtained from the thermal standard. The strong and weak points of the both used numerical methods have been discussed.",
  address="ČVUT",
  chapter="158554",
  doi="10.14311/AP.2019.59.0224",
  howpublished="print",
  institution="ČVUT",
  number="3",
  volume="59",
  year="2019",
  month="june",
  pages="224--237",
  publisher="ČVUT",
  type="journal article in Web of Science"
}