Passive cooling of heat generating cylinders in narrow enclosures

V. Dubovsky, Y. Weiss, J. Aharon, G. Ziskind, R. Letan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


This paper presents cooling by natural and induced convection of a vertical cylinder and a horizontal array of vertical cylinders in a narrow enclosed space with openings. A laboratory-scale model was studied both experimentally and numerically. The cylinders were 100mm high and 50mm in diameter, Cartridge heaters were installed in drills along the cylinder axis and connected to an external power source. The cylinders were positioned in a horizontal enclosure which was a box of an inner cross-section of 125mm (height) by 100mm (width). The length of the box was varied with the number of cylinders used, or with the spacing between the cylinders. Temperature was measured at various locations inside the cylinders by fine thermocouples using a multi-channel data acquisition unit. The experiments were performed for one to eight cylinders with various spacing. Numerical simulations were performed for the velocity and temperature fields inside the enclosure, using the Fluent 5.5 software. Both convection and radiation inside the enclosure were accounted for. Effect of various parameters of the system, including the enclosure width, height and the cylinders spacing, on the cylinder temperature has been studied. Comparison of the experimental results with numerical predictions is presented and discussed.

Original languageEnglish
Title of host publicationProceedings of the 003 ASME Summer Heat Transfer Conference, Volume 1
PublisherAmerican Society of Mechanical Engineers
Number of pages6
ISBN (Print)0791836932, 9780791836934
StatePublished - 1 Jan 2003
Event2003 ASME Summer Heat Transfer Conference (HT2003) - Las Vegas, NV, United States
Duration: 21 Jul 200323 Jul 2003

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference


Conference2003 ASME Summer Heat Transfer Conference (HT2003)
Country/TerritoryUnited States
CityLas Vegas, NV

ASJC Scopus subject areas

  • General Engineering


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