Entrance effects on forced convective heat transfer in laminar flow through short hexagonal channels: Experimental and CFD study
Authors:
- Marzena Iwaniszyn,
- Przemysław J. Jodłowski,
- Katarzyna Sindera,
- Anna Gancarczyk,
- Mateusz Korpyś,
- Roman J. Jędrzejczyk,
- Andrzej Kołodziej
Abstract
Hexagonal channels display promising flow and transfer characteristics, thus they are considered as prospective structured catalyst carriers. While transfer intensity in long channels is rather moderate, it may be greatly enhanced by channel shortening, because developing laminar flow can be reached in the major part of short channels. Heat transfer in honeycomb structures composed of short hexagonal channels was experimentally studied. The structures of three different channel lengths were made from stainless steel using the 3D printing method. Generally, experimental results agreed rather satisfactory with the literature solutions, but some of the observed deviations were difficult to explain. Therefore, CFD modeling was applied. Serious impact of channel wall thickness on the velocity distribution, thus also on the local Nusselt number distribution, was observed. Such behavior differs seriously from the theoretical predictions assuming zero wall thickness. Nevertheless, the average Nusselt number for both zero and non-zero wall thickness were in surprisingly good agreement.
- Record ID
- CUTbb1f9e3352b64b3aa36b94f07ed9f390
- Publication categories
- ;
- Author
- Journal series
- Chemical Engineering Journal, ISSN 1385-8947, e-ISSN 1873-3212
- Issue year
- 2021
- Vol
- 405
- Pages
- [1-18]
- Article number
- 126635
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 17-18; Bibliografia (liczba pozycji) - 27; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 405
- Keywords in English
- structured reactor, laminar flow, heat transfer, 3D printing, CFD
- DOI
- DOI:10.1016/j.cej.2020.126635 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/abs/pii/S1385894720327637 Opening in a new tab
- Related project
- Nowoczesne rozwiązania technologiczne dedykowane do usuwania zanieczyszczeń z silników i turbin biogazowych. Strukturalny konwerter katalityczny LZO i NOx. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- Score (nominal)
- 200
- Publication indicators
- = 14
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTbb1f9e3352b64b3aa36b94f07ed9f390/
- URN
urn:pkr-prod:CUTbb1f9e3352b64b3aa36b94f07ed9f390
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.