Show simple item record

contributor authorRavi Shankar, Ch
contributor authorNaresh, Y.
date accessioned2023-11-29T19:45:03Z
date available2023-11-29T19:45:03Z
date copyright7/27/2023 12:00:00 AM
date issued7/27/2023 12:00:00 AM
date issued2023-07-27
identifier issn1948-5085
identifier othertsea_15_9_091010.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4295003
description abstractAs electronic devices generate heat while operating, thermal management is important in view of the reliability and lifespan of the device. Much research is focused on the improvement of charging time for continuous operations of the device. Moreover, for intermittent operation of devices, the reduction in the discharging time is also as essential as the improvement in the charging time. Therefore, the objective of the study is to develop a strategy that improves charging time and reduces discharging time. This paper reports the experimental heat transfer results of a novel phase change material (PCM)-based heat sink coupled with a heat pipe under different orientations. The experiments are conducted at a constant fill ratio of 99% on several heat sink configurations, such as a heat sink (i) with the stem at the center, (ii) with four fins, and (iii) with three longitudinal fins coupled with a heat pipe. The aluminum-made heat sink having an outer diameter of 58 mm and a height of 55 mm with a wall thickness of 4 mm, is used for all the heat sink configurations. The heat pipe with an evaporator length of 60 mm and a condenser length of 40 mm is attached at the center of a three-fin heat sink configuration. Experiments are performed on different heat sinks with n-Eicosane as PCM at different orientations of 0 deg, 45 deg, 90 deg, 135 deg, and 180 deg at various power levels. The heat input is varied between 6 W and 12 W. The condenser section of the heat pipe is cooled under two different conditions, i.e., (i) natural convection and (ii) forced convection. The results show that the finned heat sink coupled with a heat pipe (FHSHP) gives the best charging and discharging performance compared to other configurations. Moreover, it is observed that the performance of an FHSHP is orientation-dependent. Furthermore, the overall effectiveness of FHSHP is high when the condenser section of the heat pipe is cooled using forced convection rather than natural convection.
publisherThe American Society of Mechanical Engineers (ASME)
titleExperimental Investigations on Effect of Orientation on Thermal Performance of a Novel Phase Change Material-Based Heat Sink
typeJournal Paper
journal volume15
journal issue9
journal titleJournal of Thermal Science and Engineering Applications
identifier doi10.1115/1.4062750
journal fristpage91010-1
journal lastpage91010-14
page14
treeJournal of Thermal Science and Engineering Applications:;2023:;volume( 015 ):;issue: 009
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record