NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS
Experiments were carried out to study the local and average heat transfer by natural convection in a vertical concentric cylindrical annulus. The experimental setup consists of an annulus has a radius ratio of 0.555 and inner cylinder with a heated length 1.2m subjected to the constant heat flux...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2007-06-01
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| Series: | Journal of Engineering |
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| Online Access: | https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2457 |
| _version_ | 1797267076204724224 |
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| author | Akeel A. Mohammed |
| author_facet | Akeel A. Mohammed |
| author_sort | Akeel A. Mohammed |
| collection | DOAJ |
| description |
Experiments were carried out to study the local and average heat transfer by natural convection in
a vertical concentric cylindrical annulus. The experimental setup consists of an annulus has a radius ratio
of 0.555 and inner cylinder with a heated length 1.2m subjected to the constant heat flux while the outer
cylinder is subjected to the ambient temperature. The investigation covers heat flux range from 58.2
W/m2
to 274.31 W/m2
. Results show an increase in the natural convection as heat flux increases leads to
an improve in the heat transfer process. An empirical equation of average Nusselt number as a function of
Raylieh number was deduced .
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| first_indexed | 2024-03-07T15:38:03Z |
| format | Article |
| id | doaj.art-d2dc4cd69ef44022aa3046af243de75d |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-04-25T01:10:50Z |
| publishDate | 2007-06-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-d2dc4cd69ef44022aa3046af243de75d2024-03-10T09:52:01ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392007-06-01130210.31026/j.eng.2007.02.07NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS Akeel A. Mohammed Experiments were carried out to study the local and average heat transfer by natural convection in a vertical concentric cylindrical annulus. The experimental setup consists of an annulus has a radius ratio of 0.555 and inner cylinder with a heated length 1.2m subjected to the constant heat flux while the outer cylinder is subjected to the ambient temperature. The investigation covers heat flux range from 58.2 W/m2 to 274.31 W/m2 . Results show an increase in the natural convection as heat flux increases leads to an improve in the heat transfer process. An empirical equation of average Nusselt number as a function of Raylieh number was deduced . https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2457Heat Transfer, Natural Convection, Concentric Annulus |
| spellingShingle | Akeel A. Mohammed NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS Journal of Engineering Heat Transfer, Natural Convection, Concentric Annulus |
| title | NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS |
| title_full | NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS |
| title_fullStr | NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS |
| title_full_unstemmed | NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS |
| title_short | NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS |
| title_sort | natural convection heat transfer in a vertical concentric annulus |
| topic | Heat Transfer, Natural Convection, Concentric Annulus |
| url | https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/2457 |
| work_keys_str_mv | AT akeelamohammed naturalconvectionheattransferinaverticalconcentricannulus |