A novel trussed fin-and-elliptical tube heat exchanger with periodic cellular lattice structures
(2023) In International Journal of Numerical Methods for Heat and Fluid Flow 33(3). p.1076-1115- Abstract
Purpose: This study aims to computational numerical simulations to clarify and explore the influences of periodic cellular lattice (PCL) morphological parameters – such as lattice structure topology (simple cubic, body-centered cubic, z-reinforced body-centered cubic [BCCZ], face-centered cubic and z-reinforced face-centered cubic [FCCZ] lattice structures) and porosity value ( ) – on the thermal-hydraulic characteristics of the novel trussed fin-and-elliptical tube heat exchanger (FETHX), which has led to a deeper understanding of the superior heat transfer enhancement ability of the PCL structure. Design/methodology/approach: A three-dimensional computational fluid dynamics (CFD) model is proposed in this paper to provide better... (More)
Purpose: This study aims to computational numerical simulations to clarify and explore the influences of periodic cellular lattice (PCL) morphological parameters – such as lattice structure topology (simple cubic, body-centered cubic, z-reinforced body-centered cubic [BCCZ], face-centered cubic and z-reinforced face-centered cubic [FCCZ] lattice structures) and porosity value ( ) – on the thermal-hydraulic characteristics of the novel trussed fin-and-elliptical tube heat exchanger (FETHX), which has led to a deeper understanding of the superior heat transfer enhancement ability of the PCL structure. Design/methodology/approach: A three-dimensional computational fluid dynamics (CFD) model is proposed in this paper to provide better understanding of the fluid flow and heat transfer behavior of the PCL structures in the trussed FETHXs associated with different structure topologies and high-porosities. The flow governing equations of the trussed FETHX are solved by the CFD software ANSYS CFX® and use the Menter SST turbulence model to accurately predict flow characteristics in the fluid flow region. Findings: The thermal-hydraulic performance benchmarks analysis – such as field synergy performance and performance evaluation criteria – conducted during this research successfully identified demonstrates that if the high porosity of all PCL structures decrease to 92%, the best thermal-hydraulic performance is provided. Overall, according to the obtained outcomes, the trussed FETHX with the advantages of using BCCZ lattice structure at 92% porosity presents good thermal-hydraulic performance enhancement among all the investigated PCL structures. Originality/value: To the best of the authors’ knowledge, this paper is one of the first in the literature that provides thorough thermal-hydraulic characteristics of a novel trussed FETHX with high-porosity PCL structures.
(Less)
- author
- Lotfi, Babak and Sunden, Bengt Ake LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Cellular materials, Field synergy principle, Finned tube heat exchanger, Goodness factors, Heat transfer enhancement, Periodic lattice structures
- in
- International Journal of Numerical Methods for Heat and Fluid Flow
- volume
- 33
- issue
- 3
- pages
- 1076 - 1115
- publisher
- Emerald Group Publishing Limited
- external identifiers
-
- scopus:85140207168
- ISSN
- 0961-5539
- DOI
- 10.1108/HFF-04-2022-0206
- language
- English
- LU publication?
- yes
- id
- fe15a6ee-1aae-4439-8541-697949c4b713
- date added to LUP
- 2023-01-16 14:46:53
- date last changed
- 2023-11-20 17:03:33
@article{fe15a6ee-1aae-4439-8541-697949c4b713,
abstract = {{<p>Purpose: This study aims to computational numerical simulations to clarify and explore the influences of periodic cellular lattice (PCL) morphological parameters – such as lattice structure topology (simple cubic, body-centered cubic, z-reinforced body-centered cubic [BCCZ], face-centered cubic and z-reinforced face-centered cubic [FCCZ] lattice structures) and porosity value ( ) – on the thermal-hydraulic characteristics of the novel trussed fin-and-elliptical tube heat exchanger (FETHX), which has led to a deeper understanding of the superior heat transfer enhancement ability of the PCL structure. Design/methodology/approach: A three-dimensional computational fluid dynamics (CFD) model is proposed in this paper to provide better understanding of the fluid flow and heat transfer behavior of the PCL structures in the trussed FETHXs associated with different structure topologies and high-porosities. The flow governing equations of the trussed FETHX are solved by the CFD software ANSYS CFX® and use the Menter SST turbulence model to accurately predict flow characteristics in the fluid flow region. Findings: The thermal-hydraulic performance benchmarks analysis – such as field synergy performance and performance evaluation criteria – conducted during this research successfully identified demonstrates that if the high porosity of all PCL structures decrease to 92%, the best thermal-hydraulic performance is provided. Overall, according to the obtained outcomes, the trussed FETHX with the advantages of using BCCZ lattice structure at 92% porosity presents good thermal-hydraulic performance enhancement among all the investigated PCL structures. Originality/value: To the best of the authors’ knowledge, this paper is one of the first in the literature that provides thorough thermal-hydraulic characteristics of a novel trussed FETHX with high-porosity PCL structures.</p>}},
author = {{Lotfi, Babak and Sunden, Bengt Ake}},
issn = {{0961-5539}},
keywords = {{Cellular materials; Field synergy principle; Finned tube heat exchanger; Goodness factors; Heat transfer enhancement; Periodic lattice structures}},
language = {{eng}},
number = {{3}},
pages = {{1076--1115}},
publisher = {{Emerald Group Publishing Limited}},
series = {{International Journal of Numerical Methods for Heat and Fluid Flow}},
title = {{A novel trussed fin-and-elliptical tube heat exchanger with periodic cellular lattice structures}},
url = {{http://dx.doi.org/10.1108/HFF-04-2022-0206}},
doi = {{10.1108/HFF-04-2022-0206}},
volume = {{33}},
year = {{2023}},
}