Sani Bašič (Author), Jure Marn (Author), Leopold Škerget (Author)

Abstract

V prispevku smo podali izsledke fizikalnih meritev hitrostnega polja v območju nad zarodnim mestom, ki je dejavno med potekom mehurčastega naravno konvektivnega vrenja. Po predstavitvi temeljnih mehanizmov prenosa v preučevanem režimu vrenja smo določili vodilne cilje potekajoče raziskave, opisali merilno progo ter podali nekatere osnovne značilnosti merilne tehnike MHSSD. Opisali smo potek meritev tokovnega polja, strnili rezultate preizkusa,nato pa povzeli sklepne ugotovitve. Delo prispeva h kolikostnem vrednotenju konvektivnih učinkov med oddaljevanjem parnih mehurjev od vrelne ploščice po ločitvi od zarodnega mesta.

Keywords

polja tokovna;tehnika merilna;tokovno polje;vrenje;vrenje mehurčkasto;zakonitosti fizikalne

Data

Language: Slovenian
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Association of Mechanical Engineers and Technicians of Slovenia et al.
UDC: 532.57:53.08:536.71
COBISS: 7692059 Link will open in a new window
ISSN: 0039-2480
Parent publication: Strojniški vestnik
Views: 862
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Other data

Secondary language: English
Secondary title: Velocity-field measurements around an isolated vapour bubble over an artificially produced nucleation site using the particle image velocimetry technique
Secondary abstract: In this paper measurements of the velocity field in the region over a nucleation site that was active during nucleate pool boiling are presented. After the presentation of the principal transport mechanisms in the investigated boiling regime the main aims of the research are defined. The experimental rig is presented and some basic features of the PIV measurement technique are described. A procedure for flow-field measurements is described,the results are presented and we conclude with final statements. Thework contributes to a quantitative determination of the convective effects during the vapour-bubble removal process on heating a wafer after departure from a nucleation site.
Secondary keywords: nucleate boiling;vapour bubbles;hydrodynamics;experimental techniques;flow fields;vrenje mehurčkasto;zakonitosti fizikalne;tehnika merilna;polja tokovna;
URN: URN:NBN:SI
Type (COBISS): Not categorized
Pages: str. 413-426
Volume: ǂLetn. ǂ50
Issue: ǂšt. ǂ9
Chronology: 2004
ID: 1743833