Thermal performance of LHSU for electronics under steady and transient operations modes

Hafiz Muhammad Ali*, Adeel Arshad, Muhammad Mansoor Janjua, Wajahat Baig, Uzair Sajjad

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

This experimental study investigates the effect of passive cooling of electronic devices using a latent heat storage unit (LHSU) filled with n-eicosane as phase change material (PCM),under steady-state and transient heating operations. A pin–fin heat sink of square configuration, made of aluminum, pin-fins acted as a thermal conductivity enhancers (TCEs), is used to augment the rate of heat transfer through n-eicosane which has low thermal conductivity. A range of input heating loads from 1.2–2.8kW/m2 with an interval of 0.4kW/m2 are applied at the base of LHSU, filled at three different volumetric fractions of n-eicosane, to quantify the steady-state and transient heat transfer characteristics for different operation modes for reliable passive cooling of electronics. The results are reported under two phases i.e. steady-state and transient heating, and thermal performance of LHSU is elucidated in terms of enhancement in operation time, enhancement ratio, effect of PCM amount and various usage modes under different heating loads.

Original languageEnglish
Pages (from-to)1223-1232
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume127
Early online date18 Jul 2018
DOIs
Publication statusPublished - 1 Dec 2018
Externally publishedYes

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