Description

• Title:
  Effect of some parameters on the thermo-hydraulic characteristics of a channel heat exchanger with corrugated walls
• Creator:
  Houari Ameur;
  Djamel Sahel
• Description:
  The present work is a numerical modeling of the flow of a viscous fluid provided with convective heat transfer in a rectangular channel. We focus on the influence of the shape of corrugations which are present on the channel walls. Three shapes of corrugations are studied and which are: the rectangular, triangular and semi-circular shape. Also, effects of the height and number of corrugations on the fluid dynamics and thermal characteristics of the exchanger are highlighted. The working fluid is non-Newtonian (having a shear thinning behavior modeled by the Otswald law). The obtained results reveal that the presence of corrugations yields a major change in the heat exchange execution. In terms of superiority of heat transfer ratio, the cases under investigation can be classified as follows: rectangular > triangular > semi-circular. However and in terms of low pressure drop, this ranking is reversed. Furthermore, the triangular and semi-circular shapes were found to have almost similar effects.
• Object availability:
  free access
• Rights: Creative Commons BY 4.0
• Date:
  2019.12.31;
  2019
• Type:
  artykuł w czasopiśmie
• Language:
  English
• Format:
  application/pdf
• Publisher:
  Publishing House of the Koszalin University of Technology
• Subject:
  heat exchanger;
  corrugated walls;
  laminar flow;
  complex fluids
• Data provider:
  Biblioteka Cyfrowa Politechniki Koszalińskiej
• Can I use it?:
  seek permission
• Type:
  text