Recent advancement in heat transfer and fluid flow characteristics in cross flow heat exchangers

Mangrulkar, Chidanand K.; Dhoble, Ashwinkumar S.; Chamoli, Sunil; Gupta, Avijit; Gawande, Vipin B.

doi:10.1016/j.rser.2019.06.027

Cited by 71 publications

(11 citation statements)

References 121 publications

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“…The general thermal performance of the various passive designs for cross-flow heat exchangers has been documented by Mangrulkar et al [95]. They covered various tube cross-sections, fins with unique designs, and fins modifying parameters like dense tube ratio, eddy size, fin dense, Re, and by adding VGs.…”

Section: Perforated Finsmentioning

confidence: 99%

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

2022

IJATEE

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Heat exchanger tubes with circular fins have been widely used in industrial and commercial applications over the past decade and are considered one of the major researcher's concerns in a range of engineering applications for their affordable cost and potential future to improve heat transfer. This review summarises the recently optimised circular fins (needle, trimmed, crimped, perforated) and how they affect heat transmission, the pressure generated and weight. Where varying fin-related parameters (fin height, fin material, the gap between fins, and number of fins) and flow-related parameters (inlet air velocity or manufacturing fin design) are aimed to optimise the performance in a different manner.In conclusion, designs of novel fin shapes remained a challenging field and demanded more studies to reinforce the existing papers to accomplish the optimum required performance.

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Section: Perforated Finsmentioning

confidence: 99%

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

2022

IJATEE

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“…When one is seeking a particular approach to intensify heat transfer rates against minimal pressure drop penalties in an industrial CHX, one will have many design challenges ahead. The main aim in ameliorating the THP of the FTHXs or in the innovative design of novel ones is to augment heat transfer between hot/cold fin-tube surfaces and the fluid flow (Mangrulkar et al , 2019; Sundén, 2010).…”

Section: Introductionmentioning

confidence: 99%

A novel trussed fin-and-elliptical tube heat exchanger with periodic cellular lattice structures

Lotfi

Sundén

2022

HFF

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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.

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“…Methods for increasing the thermal performance of a cross flow heat exchanger 4 [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Introductionmentioning

confidence: 99%

Metallic foam with cross flow heat exchanger: A review of parameters, performance, and challenges

2022

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The cross‐flow heat exchanger involves a tractor moving between two fluids that flow in a direction perpendicular to each other, and one of the fluids is often a liquid and the other is a gas. This type of heat exchanger has been studied in many previous studies for its importance in air conditioning applications and many industrial applications. In this type of heat exchanger, the surface area for heat transfer is very large. Therefore, many techniques have been used to improve the thermal and dynamic performance of this type of heat exchanger. In this study, previous studies that used metallic foam as one of the ways to improve the performance of heat exchangers were reviewed. The most important techniques that were used in previous studies during the process of evaluating the thermal performance of a cross‐flow heat exchanger in the presence of different types of metal foam were clarified. The use of metal foam depends on important factors, including (1) the type of material, where copper and aluminum were used in most of the previous studies, due to their availability and ease of foam formation using these materials, in addition to the good thermal properties, (2) porosity, where the porosity value of metal foam ranged between 0.85 and 0.98 in the previous studies, (3) the density of pores, most of the studies ranged between 10 and 40 PPI.

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Recent advancement in heat transfer and fluid flow characteristics in cross flow heat exchangers

Cited by 71 publications

References 121 publications

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

A review on the modification of circular fin and tube heat exchangers through new innovative fin shapes

A novel trussed fin-and-elliptical tube heat exchanger with periodic cellular lattice structures

Metallic foam with cross flow heat exchanger: A review of parameters, performance, and challenges

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