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Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface

Heat removal through pool boiling is limited by the phenomena of critical heat flux (CHF). CHF enhancement is vitally important in order to satisfy demand for the cooling technology with high heat flux in In Vessel Retention (IVR). Various surface modifications of the boiling surface, e.g., int...

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Main Authors: Suazlan, Mt Aznam, Shoji, Mori, Kunito, Okuyama
Format: Conference or Workshop Item
Language:English
Published: The American Society of Mechanical Engineers 2016
Subjects:
TP155 Chemical engineering
Online Access:http://irep.iium.edu.my/65474/7/65474%20Critical%20Heat%20Flux%20Enhancement.pdf
http://irep.iium.edu.my/65474/
http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleID=2577277
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spelling my.iium.irep.654742018-09-18T03:19:21Z http://irep.iium.edu.my/65474/ Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface Suazlan, Mt Aznam Shoji, Mori Kunito, Okuyama TP155 Chemical engineering Heat removal through pool boiling is limited by the phenomena of critical heat flux (CHF). CHF enhancement is vitally important in order to satisfy demand for the cooling technology with high heat flux in In Vessel Retention (IVR). Various surface modifications of the boiling surface, e.g., integrated surface structures and coating of a micro-porous have been proven to effectively enhance the CHF in saturated pool boiling. We have been proposed a novel method of attaching a honeycomb structured porous plate on a considerably large heater surface. Previous results, by the authors in [1] reported that CHF has been enhanced experimentally up to more than approximately twice that of a plain surface (approximately 2.0 to 2.5 MW/m2 ) with a diameter of 30 mm heated surface. However, it is necessary to demonstrate the method together with infinite heater surface within laboratory scale. It is important that cooling techniques for IVR could be applicable to a large heated surface as well as remove high heat flux. Objective of this study is to investigate the CHF of honeycomb porous plate and metal solid structure in nanofluid boiling or water boiling on a large heated surface. Water-based nanofluid offers good wettability and capillarity. While metal solid structure is installed on honeycomb porous plate to increase the number of vapor jet. Experimental results of honeycomb porous plate and combination of honeycomb porous plate and metal solid structure in water-based nanofluid boiling shows that CHF is increased up to twice [2] and thrice, respectively compared to plain surface in water boiling. To the best of the author’s knowledge, the highest value (3.1 MW/m2 ) was obtained for a large heated surface having a diameter of 50 mm which is regarded as infinite heated surface. This demonstrates potential for general applicability to have more safety margin in IVR method. The American Society of Mechanical Engineers 2016 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/65474/7/65474%20Critical%20Heat%20Flux%20Enhancement.pdf Suazlan, Mt Aznam and Shoji, Mori and Kunito, Okuyama (2016) Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface. In: 24th International Conference on Nuclear Engineering, 26th–30th June 2016, Charlotte, North Carolina, USA,. http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleID=2577277 10.1115/ICONE24-60560
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic TP155 Chemical engineering
spellingShingle TP155 Chemical engineering
Suazlan, Mt Aznam
Shoji, Mori
Kunito, Okuyama
Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
description Heat removal through pool boiling is limited by the phenomena of critical heat flux (CHF). CHF enhancement is vitally important in order to satisfy demand for the cooling technology with high heat flux in In Vessel Retention (IVR). Various surface modifications of the boiling surface, e.g., integrated surface structures and coating of a micro-porous have been proven to effectively enhance the CHF in saturated pool boiling. We have been proposed a novel method of attaching a honeycomb structured porous plate on a considerably large heater surface. Previous results, by the authors in [1] reported that CHF has been enhanced experimentally up to more than approximately twice that of a plain surface (approximately 2.0 to 2.5 MW/m2 ) with a diameter of 30 mm heated surface. However, it is necessary to demonstrate the method together with infinite heater surface within laboratory scale. It is important that cooling techniques for IVR could be applicable to a large heated surface as well as remove high heat flux. Objective of this study is to investigate the CHF of honeycomb porous plate and metal solid structure in nanofluid boiling or water boiling on a large heated surface. Water-based nanofluid offers good wettability and capillarity. While metal solid structure is installed on honeycomb porous plate to increase the number of vapor jet. Experimental results of honeycomb porous plate and combination of honeycomb porous plate and metal solid structure in water-based nanofluid boiling shows that CHF is increased up to twice [2] and thrice, respectively compared to plain surface in water boiling. To the best of the author’s knowledge, the highest value (3.1 MW/m2 ) was obtained for a large heated surface having a diameter of 50 mm which is regarded as infinite heated surface. This demonstrates potential for general applicability to have more safety margin in IVR method.
format Conference or Workshop Item
author Suazlan, Mt Aznam
Shoji, Mori
Kunito, Okuyama
author_facet Suazlan, Mt Aznam
Shoji, Mori
Kunito, Okuyama
author_sort Suazlan, Mt Aznam
title Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
title_short Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
title_full Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
title_fullStr Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
title_full_unstemmed Critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
title_sort critical heat flux enhancement in water-based nanofluid with honeycomb porous plate on large heated surface
publisher The American Society of Mechanical Engineers
publishDate 2016
url http://irep.iium.edu.my/65474/7/65474%20Critical%20Heat%20Flux%20Enhancement.pdf
http://irep.iium.edu.my/65474/
http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleID=2577277
_version_ 1643617593311887360
score 13.211869

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