- Tytuł:
- Effect of some parameters on the thermohydraulic characteristics of a channel heat exchanger with corrugated walls
- Autorzy:
-
Ameur, Houari
Sahel, Djamel - Powiązania:
- https://bibliotekanauki.pl/articles/95233.pdf
- Data publikacji:
- 2019
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
heat exchanger
corrugated walls
laminar flow
complex fluids
wymiennik ciepła
ściany pofalowane
przepływ laminarny
płyny złożone - Opis:
- 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 semicircular shapes were found to have almost similar effects.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2019, 3, 1; 53-60
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł