Numerical And Experimental Study of the Performance of a Drop-Shaped Pin Fin Heat Exchanger

Abstract

This research presents the results or a combined numerical and experimental study or heat transfer and pressure drop behavior in a compact heat exchanger (CHE) designed with drop-shaped pin tins. A numerical study using ANSYS was first conducted to select the optimum pin shape and configuration for the CHE. This was followed by an experimental study to validate the numerical model. The results indicate that the drop shaped pin tins yield a considerable improvement in heat transfer compared to circular pin tins tor the same pressure drop characteristics. This improvement is mainly due to the increased wetted surface area of the drop pins, and the delay in the flow separation as it passes the more streamlined drop shaped pin tins. The data and conclusions of this study can he used in heat exchanger design tor large heat flux cooling applications as in gas turbine blades, and high-power electronics.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2003
Accession Number
ADA417333

Entities

People

  • Jihed Boulares

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Electronics
  • Flow
  • Flow Separation
  • Fluid Flow
  • Gas Turbine Blades
  • Gas Turbines
  • Heat Exchangers
  • Heat Flux
  • Heat Transfer
  • Heat Transfer Coefficients
  • Mechanical Engineering
  • Shape
  • Temperature Gradients
  • Three Dimensional
  • Turbine Blades
  • Turbines

Fields of Study

  • Engineering

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Electrical Engineering
  • Instructional Design and Training Evaluation.

Technology Areas

  • Microelectronics