Energy Analysis of Flattened Heat Pipe with Nanofluids for Sustainable Electronic Cooling Applications

Sankar Rangasamy (), Raghavendra Rajan Vijaya Raghavan, Rajvikram Madurai Elavarasan and Padmanathan Kasinathan
Additional contact information
Sankar Rangasamy: Department of Electrical and Electronics Engineering, Chennai Institute of Technology, Chennai 600069, India
Raghavendra Rajan Vijaya Raghavan: Automotive Department, Harman Connected Services India Pvt. Ltd., Bengaluru 560066, India
Rajvikram Madurai Elavarasan: Research & Development Division (Power & Energy), Nestlives Private Limited, Chennai 600091, India
Padmanathan Kasinathan: Department of Electrical and Electronics Engineering, Agni College of Engineering, Thalambur, Chennai 600130, India

Sustainability, 2023, vol. 15, issue 6, 1-20

Abstract: With the growing consumer demand in the electronics field, sustainable and effective cooling approaches are imperative to maximize operational efficiency. Heat pipes shave a major consideration in the field of heat transfer in a modern era of miniaturization of equipment. In current trends, the proportion of custom-designed electronic chips is increasing, given the space constraints of the application. Additionally, the use of nanofluids in heat pipes has drawn considerable attention because of their exceptional performance in heat transfer. This research is proposed primarily to investigate the effect of nanofluids on the performance of the partially flattened heat pipe. Here, the evaporator portion forms flat shape which is mostly suitable for fixing easily in electronic circuits. The remaining portions, such as the adiabatic and condenser, are left as circular. This work also covers the development of flattened heat pipes and analyzes their performance. Pure water, Titanium Oxide (TiO 2 ), and Aluminum Oxide (Al 2 O 3 )-water-based nanofluids have been used in this research as working fluids. The heat transfer analysis on the customized partially flattened heat pipe was performed, and the results have been compared with fully flattened and circular heat pipes. The heat transfer parameters, such as the heat transfer coefficient and thermal resistance, have been determined from the heat input, evaporator temperature, and condenser temperature for various inclination angles including 0°, 45°, and 90° with the heat input varied between 50–300 W. The results have shown that the flattened heat pipe performed better with Al 2 O 3 nanofluid at an inclination angle of 45° at all of the heat inputs and provided better thermal resistance compared with the other combinations. At 45°, the resistance of the heat pipe was reduced by 2% and 8% with Al 2 O 3 nanofluid compared with water and TiO 2 nanofluid. Furthermore, the heat transfer coefficient was found higher by 4 W/m 2 -K and 4.6 W/m 2 -K with Al 2 O 3 and gives better results in terms of resistance and heat transfer coefficient.

Keywords: partially flattened heat pipe; TiO 2; Al 2 O 3 nanofluids (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/6/4716/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/6/4716/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:6:p:4716-:d:1089850

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().