Natural convection of water and nano‐emulsion phase change material inside a square enclosure to cool the electronic components. (27th September 2021)

• Record Type: Journal Article
• Authors: Syah, Rahmad; Davarpanah, Afshin; Elveny, Marischa; Ramdan, Dadan
• Is Part Of: International journal of energy research. Volume 46:Number 3(2022)
• Page Start: 2403
• Page End: 2417
• Publication Date: 2021-09-27
• Subjects: electronic components cooling -- nano‐emulsion phase change material -- natural convection -- N‐eicosane -- water‐NPCM; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.7316
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: The usage of natural convection has many applications for cooling and controlling the temperature of electronic components. Therefore, in the present simulation, the average Nusselt number and maximum temperature of surface's electronic components are studied by adding nano‐emulsion phase change material (NPCM) with water as the base fluid. Because, the previous studies show that adding NPCM to a base fluid can increase the specific heat capacity of a mixture in order to change the phase in the solid–liquid transition. The used NPCM consists of n‐eicosane as a core and sodium lauryl sulphate as a shell. The geometry includes a square enclosure with the top wall as a cold wall and the bottom wall as a hot electronic component with constant heat flux. In the current study, the effects of Rayleigh numbers ( 10 2 < Ra < 10 6 ), cold wall temperature ( 15 ° C < T C < 35 ° C ), and volume fraction of NPCM ( 0 < φ < 0.056 ) are investigated to understand the behaviors of NPCM on heat transfer parameters. The observations show that the average Nusselt number is directly related to Rayleigh number and thickness of the phase change zone. Moreover, the optimal value of volume fraction is 0.012 that increases average Nusselt number 7.3% and 5.4% for low and high Rayleigh numbers, respectively.