20.500.12556/DKUM-53027 Meritve tokovnega polja okrog osamljenega mehurja pare nad umetno ustvarjenim zarodnim mestom s tehniko meritve hitrosti s sliko sledilnih delcev Velocity-field measurements around an isolated vapour bubble over an artificially produced nucleation site using the particle image velocimetry technique 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. 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. nucleate boiling vapour bubbles hydrodynamics experimental techniques flow fields true true false Association of Mechanical Engineers and Technicians of Slovenia et al. Slovenski jezik Angleški jezik Delo ni kategorizirano 2015-07-10 19:00:17 2015-07-10 19:00:17 2022-06-02 03:08:40 2019-07-11 07:59:52 2004 0 0 str. 413-426 št. 9 Letn. 50 2004 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.57:53.08:536.71 762116 7692059 0039-2480 URN:SI:UM:DK:IZUK3RIR http://www.dlib.si/details/URN:NBN:SI:doc-WQAKPXI7 1 https://dk.um.si/Dokument.php?lang=slv&id=77587 Fakulteta za strojništvo 0 0 0