Detail publikačního výsledku

Process analysis on heat transfer surface

BENEŠ, P.

Originální název

Process analysis on heat transfer surface

Anglický název

Process analysis on heat transfer surface

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The subject of the paper is an application of the acoustic emission method (AE) in diagnosing the processes taking place on the heat-transfer surface during pool and microlayer boiling. The main relationships, dependences and research results are presented. The mechanism of acoustic emission generation in boiling is discussed. Based on a theoretical analysis, a set of random process characteristics in time and frequency domain has been selected. Their suitability for the description of the dependence of the generated acoustic emission on liquid overheating (i.e. on the coefficient of heat transfer or heat flux density) is verified by experiment. The original arrangement of the experiment enabled us to reach the critical heat flux in pool boiling in laboratory and simultaneously scans acoustic emission immediately after its generation.

Anglický abstrakt

The subject of the paper is an application of the acoustic emission method (AE) in diagnosing the processes taking place on the heat-transfer surface during pool and microlayer boiling. The main relationships, dependences and research results are presented. The mechanism of acoustic emission generation in boiling is discussed. Based on a theoretical analysis, a set of random process characteristics in time and frequency domain has been selected. Their suitability for the description of the dependence of the generated acoustic emission on liquid overheating (i.e. on the coefficient of heat transfer or heat flux density) is verified by experiment. The original arrangement of the experiment enabled us to reach the critical heat flux in pool boiling in laboratory and simultaneously scans acoustic emission immediately after its generation.

Klíčová slova v angličtině

water boiling, AE generation mechanism, signal analysis

Autoři

BENEŠ, P.

Vydáno

11.09.2002

Nakladatel

ČNDT

Místo

Praha

ISBN

80-214-2174-6

Kniha

EWGAE 2002

Strany od

51

Strany počet

8

BibTex

@inproceedings{BUT5571,
  author="Petr {Beneš}",
  title="Process analysis on heat transfer surface",
  booktitle="EWGAE 2002",
  year="2002",
  pages="8",
  publisher="ČNDT",
  address="Praha",
  isbn="80-214-2174-6"
}