Thermal Performance Analysis of Jet Impingement with Effusion Scheme

Mohd Ariz, Noorul Huda, Afzal Husain

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The present work investigates the thermal performance of a copper-based coupled impingement-effusion heat sink. A three-dimensional numerical analysis was executed for steady state, incompressible laminar, flow and conjugate heat transfer. A constant heat flux of 100 W/cm2 was applied at the base of copper substrate while on the other side a heat sink model was designed. The jet plate consists of multiple impingement jet nozzles and each jet nozzle was surrounded by six effusion holes, computational domain was defined by applying symmetric boundary conditions. The effects of the design parameters such as jet diameter, effusion-hole diameter, stand-off and jet-to-effusionpitch were investigated. The analysis was carried out at a low Reynolds number of 200 to prevail laminar flow conditions. The maximum temperature rise, total pressure drop, area-averaged heat transfer coefficient, thermal resistance and pumping power were discussed with various design variables e.g., the ratio of the pitch-to-jet diameter, standoff-to-jet diameter and area ratio of jet-to-effusion hole. The design with higher standoff-to-jet diameter ratio offers lower overall thermal resistance while design with lower standoff-to-jet diameter ratios offer lower pressure drop penalty. Higher heat transfer was associated with lower pitch-to-jet diameter and higher standoff-to-jet diameter ratio. The functional relationship between the overall thermal resistance and the pumping power was studied, which presents the optimal front within the design space explored in the present study.

Original languageEnglish
Title of host publicationProcedia Engineering
PublisherElsevier Ltd
Pages110-117
Number of pages8
Volume127
DOIs
Publication statusPublished - 2015
EventInternational Conference on Computational Heat and Mass Transfer, ICCHMT 2015 - Warangal, Telangana, India
Duration: Nov 30 2015Dec 2 2015

Other

OtherInternational Conference on Computational Heat and Mass Transfer, ICCHMT 2015
CountryIndia
CityWarangal, Telangana
Period11/30/1512/2/15

    Fingerprint

Keywords

  • Effusion Holes
  • Heat Sink
  • Heat Transfer Coefficient
  • Jet Impingement
  • Micro-scale Heat Transfer
  • Thermal Resistance

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ariz, M., Huda, N., & Husain, A. (2015). Thermal Performance Analysis of Jet Impingement with Effusion Scheme. In Procedia Engineering (Vol. 127, pp. 110-117). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2015.11.433