Bubble departure diameter determination for pool boiling on surface with microchannels

The paper presents visualization investigations into pool boiling heat transfer for open microchannel surfaces. The experiments were carried out with saturated water, ethanol, FC-72 and Novec-649 at atmospheric pressure. Parallel microchannels fabricated by machining copper sample were about 0.2 to...

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Main Authors: Kaniowski Robert, Pastuszko Robert, Kowalczyk Joanna, Nowakowski Łukasz
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:E3S Web of Conferences
Online Access:https://doi.org/10.1051/e3sconf/20187002008
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author Kaniowski Robert
Pastuszko Robert
Kowalczyk Joanna
Nowakowski Łukasz
author_facet Kaniowski Robert
Pastuszko Robert
Kowalczyk Joanna
Nowakowski Łukasz
author_sort Kaniowski Robert
collection DOAJ
description The paper presents visualization investigations into pool boiling heat transfer for open microchannel surfaces. The experiments were carried out with saturated water, ethanol, FC-72 and Novec-649 at atmospheric pressure. Parallel microchannels fabricated by machining copper sample were about 0.2 to 0.5 mm wide and 0.2 to 0.5 mm deep. The diameter of departing bubble was calculated for the microchannel surface on the basis of buoyancy force and surface tension force balance. The visualization carried out was aimed at determining the diameters of the departing bubbles at various heat fluxes for four working fluids.
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spelling doaj.art-d2b3493bc86b49ab9c82d82e91d8bb712022-12-21T22:23:44ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01700200810.1051/e3sconf/20187002008e3sconf_htrse2018_02008Bubble departure diameter determination for pool boiling on surface with microchannelsKaniowski Robert0Pastuszko Robert1Kowalczyk Joanna2Nowakowski Łukasz3Kielce University of Technology, Faculty of Mechatronics and Mechanical EngineeringKielce University of Technology, Faculty of Mechatronics and Mechanical EngineeringKielce University of Technology, Faculty of Mechatronics and Mechanical EngineeringKielce University of Technology, Faculty of Mechatronics and Mechanical EngineeringThe paper presents visualization investigations into pool boiling heat transfer for open microchannel surfaces. The experiments were carried out with saturated water, ethanol, FC-72 and Novec-649 at atmospheric pressure. Parallel microchannels fabricated by machining copper sample were about 0.2 to 0.5 mm wide and 0.2 to 0.5 mm deep. The diameter of departing bubble was calculated for the microchannel surface on the basis of buoyancy force and surface tension force balance. The visualization carried out was aimed at determining the diameters of the departing bubbles at various heat fluxes for four working fluids.https://doi.org/10.1051/e3sconf/20187002008
spellingShingle Kaniowski Robert
Pastuszko Robert
Kowalczyk Joanna
Nowakowski Łukasz
Bubble departure diameter determination for pool boiling on surface with microchannels
E3S Web of Conferences
title Bubble departure diameter determination for pool boiling on surface with microchannels
title_full Bubble departure diameter determination for pool boiling on surface with microchannels
title_fullStr Bubble departure diameter determination for pool boiling on surface with microchannels
title_full_unstemmed Bubble departure diameter determination for pool boiling on surface with microchannels
title_short Bubble departure diameter determination for pool boiling on surface with microchannels
title_sort bubble departure diameter determination for pool boiling on surface with microchannels
url https://doi.org/10.1051/e3sconf/20187002008
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AT pastuszkorobert bubbledeparturediameterdeterminationforpoolboilingonsurfacewithmicrochannels
AT kowalczykjoanna bubbledeparturediameterdeterminationforpoolboilingonsurfacewithmicrochannels
AT nowakowskiłukasz bubbledeparturediameterdeterminationforpoolboilingonsurfacewithmicrochannels