Title:

Effect of some parameters on the thermo-hydraulic characteristics of a channel heat exchanger with corrugated walls

Creator:

Houari Ameur ; Djamel Sahel

Subject:

heat exchanger ; corrugated walls ; laminar flow ; complex fluids

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.

Place of publishing:

Koszalin

Publisher:

Publishing House of the Koszalin University of Technology

Date:

2019

Type:

artykuł w czasopiśmie

Format:

application/pdf

Language:

eng

Is part of:

Journal of Mechanical and Energy Engineering. Vol.3 (43), nr 1, s. 53-60

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY 4.0