Heat transfer and fluid flow in PDMS nanocomposite micro-pin fin heat sinks

• Grant number: 22/03946-1
• Support Opportunities: Scholarships abroad - Research
• Start date: February 01, 2023
• End date: January 31, 2024
• Field of knowledge: Engineering - Mechanical Engineering - Transport Phenomena
• Principal Investigator: Elaine Maria Cardoso
• Grantee: Elaine Maria Cardoso
• Host Investigator: Sushanta Mitra
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil
• Institution abroad: University of Waterloo, Canada

Abstract

In this work, a method to enhance the thermal conductivity of a PDMS micro-pin fin heat sink matrix for a better heat exchange will be introduced; by mixing it with thermally conductive nanoparticles of graphene and hexagonal boron nitride (hBN) (with different mass concentrations). The obtained nanocomposites will be fully characterized to analyze their flexibility, thermal properties, and nanoparticle homogeneity within the polymeric matrix. Two arrangements of heat sinks will be tested: one in-line square micro pin-fin and another in-line diamond micro pin-fin. Experimental measurements will be carried out to understand the thermal and hydraulic performance of microfluidic systems; experimentally investigate the pressure drop characteristics for forced flow and experimentally investigate the single-phase heat transfer coefficient and surface temperatures. This project fits into the multidisciplinary vision and scientific strategy of mechanical engineering and engineering systems, combining nanotechnology, materials engineering, and thermal sciences studies. This knowledge is essential for this proposal's scientific merit and economic impact. This proposal intends to develop a new line of investigation of heat transfer systems using the PDMS as an innovative way to achieve good results in electronics cooling. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOUZA, R. R.; BARBOSA, F. M. SA; NOBREGA, G.; CARDOSO, E. M.; TEIXEIRA, J. C. F.; MOITA, A. S.; LIMA, R.. An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids. THERMAL SCIENCE AND ENGINEERING PROGRESS, v. 42, p. 8-pg., 2023-05-29. (13/15431-7, 22/03946-1, 19/02566-8)

SOUZA, R. R.; BARBOSA, F. M. SA; NOBREGA, G.; CARDOSO, E. M.; TEIXEIRA, J. C. F.; MOITA, A. S.; LIMA, R.. Experimental study of an innovative elastomer-based heat exchanger. CASE STUDIES IN THERMAL ENGINEERING, v. 49, p. 8-pg., 2023-09-01. (13/15431-7, 22/03946-1, 19/02566-8)

NUNES, JESSICA MARTHA; DE OLIVEIRA, JEFERSON DIEHL; COPETTI, JACQUELINE BIANCON; GAJGHATE, SAMEER SHESHRAO; BANERJEE, UTSAB; MITRA, SUSHANTA K.; CARDOSO, ELAINE MARIA. Thermal Performance Analysis of Micro Pin Fin Heat Sinks under Different Flow Conditions. ENERGIES, v. 16, n. 7, p. 13-pg., 2023-04-01. (13/15431-7, 22/03946-1, 19/02566-8)