Visualization of pool boiling from complex surfaces with internal tunnels

Visualization of pool boiling from complex surfaces with internal tunnels

The paper presents experimental investigations of boiling heat transfer for a system of connected narrow horizontal and vertical tunnels. These extended surfaces, named narrow tunnel structure (NTS), can be applied to electronic element cooling. The experiments were carried out with ethanol at atmos...

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Main Author: Pastuszko Robert
Format: Article
Language:English
Published: EDP Sciences 2012-04-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20122501067
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spelling doaj-544e54cd38b64890a99f419e9c94a1332021-08-02T17:50:45ZengEDP SciencesEPJ Web of Conferences2100-014X2012-04-01250106710.1051/epjconf/20122501067Visualization of pool boiling from complex surfaces with internal tunnelsPastuszko RobertThe paper presents experimental investigations of boiling heat transfer for a system of connected narrow horizontal and vertical tunnels. These extended surfaces, named narrow tunnel structure (NTS), can be applied to electronic element cooling. The experiments were carried out with ethanol at atmospheric pressure. The tunnel external covers were manufactured out of 0.1 mm thick perforated copper foil (hole diameters 0.5 mm), sintered with the mini-fins, formed on the vertical side of the 10 mm high rectangular fins and horizontal inter-fin surface. Visualization studies were conducted with a transparent structured model of joined narrow tunnels limited with the perforated foil. The visualization investigations aimed to formulate assumptions for the boiling model through distinguishing boiling types and defining all phases of bubble growth.http://dx.doi.org/10.1051/epjconf/20122501067
collection DOAJ
language English
format Article
sources DOAJ
author Pastuszko Robert
spellingShingle Pastuszko Robert
Visualization of pool boiling from complex surfaces with internal tunnels
EPJ Web of Conferences
author_facet Pastuszko Robert
author_sort Pastuszko Robert
title Visualization of pool boiling from complex surfaces with internal tunnels
title_short Visualization of pool boiling from complex surfaces with internal tunnels
title_full Visualization of pool boiling from complex surfaces with internal tunnels
title_fullStr Visualization of pool boiling from complex surfaces with internal tunnels
title_full_unstemmed Visualization of pool boiling from complex surfaces with internal tunnels
title_sort visualization of pool boiling from complex surfaces with internal tunnels
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2012-04-01
description The paper presents experimental investigations of boiling heat transfer for a system of connected narrow horizontal and vertical tunnels. These extended surfaces, named narrow tunnel structure (NTS), can be applied to electronic element cooling. The experiments were carried out with ethanol at atmospheric pressure. The tunnel external covers were manufactured out of 0.1 mm thick perforated copper foil (hole diameters 0.5 mm), sintered with the mini-fins, formed on the vertical side of the 10 mm high rectangular fins and horizontal inter-fin surface. Visualization studies were conducted with a transparent structured model of joined narrow tunnels limited with the perforated foil. The visualization investigations aimed to formulate assumptions for the boiling model through distinguishing boiling types and defining all phases of bubble growth.
url http://dx.doi.org/10.1051/epjconf/20122501067
work_keys_str_mv AT pastuszkorobert visualizationofpoolboilingfromcomplexsurfaceswithinternaltunnels
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