Optimization of the Louver Fin-and-Tube Heat  Exchangers-a Parametric Approach

Sadeghianjahromi, Ali; Kheradmand, Saeid; Nemati, H.; Wang, Chi-Chuan

doi:10.1615/jenhheattransf.2020033527

Cited by 13 publications

(3 citation statements)

References 37 publications

(51 reference statements)

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“…The amount of pheromone calculated by Eq. ( 4) is not a linear relationship but an exponential relationship, and the closer the absolute value of the error is to zero, the more strongly the amount of competency calculated [20].…”

Section: Fit Calculation (Value Function)mentioning

confidence: 99%

Multi-Objective Optimization of External Louvers in Buildings

Chen¹,

Dwijendra²,

Parwata³

et al. 2023

Computers, Materials &Amp; Continua

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Because solar energy is among the renewable energies, it has traditionally been used to provide lighting in buildings. When solar energy is effectively utilized during the day, the environment is not only more comfortable for users, but it also utilizes energy more efficiently for both heating and cooling purposes. Because of this, increasing the building's energy efficiency requires first controlling the amount of light that enters the space. Considering that the only parts of the building that come into direct contact with the sun are the windows, it is essential to make use of louvers in order to regulate the amount of sunlight that enters the building. Through the use of Ant Colony Optimization (ACO), the purpose of this study is to estimate the proportions and technical specifications of external louvers, as well as to propose a model for designing the southern openings of educational space in order to maximize energy efficiency and intelligent consumption, as well as to ensure that the appropriate amount of light is provided. According to the findings of this research, the design of external louvers is heavily influenced by a total of five distinct aspects: the number of louvers, the depth of the louvers, the angle of rotation of the louvers, the distance between the louvers and the window, and the reflection coefficient of the louvers. The results of the 2067 simulated case study show that the best reflection rates of the louvers are between 0 and 15 percent, and the most optimal distance between the louvers and the window is in the range of 0 to 18 centimeters. Additionally, the results show that the best distance between the louvers and the window is in the range of 0 to 18 centimeters.

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Section: Fit Calculation (Value Function)mentioning

confidence: 99%

Multi-Objective Optimization of External Louvers in Buildings

Chen¹,

Dwijendra²,

Parwata³

et al. 2023

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

show abstract

“…The impacts of louver fin angle, fin pitch, and tube pitch on heat transfer performance and friction factor over a louver angle range of (0

to 80

) were numerically investigated by Ref. [ 31 ]. An optimal louver angle of 20

was found to maximize Colburn factor and minimize friction factor.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of louver edges effect on the performances of louvered fin compact heat exchanger

Feleke,

Getie,

Minale

2024

Heliyon

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“…here include use of extended surfaces or fins, treated surfaces and rough surfaces etc Sharma et al (2020). conducted experimental investigation on enhanced heat transfer and flow features in a duct mounted with various ribs of square, pentagonal, trapezium and truncated prismatic configurations and explained the fundamental heat transfer mechanisms according to the experimental results Sadeghianjahromi et al (2020). performed 3D turbulent flow numerical simulations to study heat transfer and flow friction characteristics of louver fin-and-tube heat exchangers and optimized the parameters of the heat exchangers Chen et al (2020b).…”

mentioning

confidence: 99%

Heat Transfer Enhancement-a Brief Review of Literature in 2020 and Prospects

et al. 2021

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This review provides a brief literature survey on enhanced heat transfer research published in the English language journals in 2020. A topic search containing either "heat transfer" or "heat transport" or "thermal transport" in the Web of Science resulted in over 28,000 papers published in 2020 and nearly 30% were relevant to heat transfer intensification, which indicates the importance and rapid development of heat transfer enhancement technologies. The chosen studies focus on various heat transfer enhancement research categorized into conduction, convection, radiation, boiling and condensation, energy storage, thermal management, and cross research involving two or more categories. Heat conduction papers are selected from the micro/nanoscale areas with a focus on interfacial phenomena. Important active, passive, and compound techniques for enhancing convective heat transfer are incorporated. Thermal radiation is concentrated on near-2 field radiation and solar energy. Heat transfer enhancement in boiling and condensation as well as in thermal energy storage, renewable and sustainable energy, and thermal management of electronics and high-end equipment is critical in many engineering applications. From the selected literature published in 2020, significant attempts have been made to research and development on heat transfer enhancement technology covering both conventional and emerging techniques. The prospects of the heat transfer enhancement research are reflected according to the literature survey.Research of innovative heat transfer enhancement techniques is immense, encompassing every aspect from understanding the fundamental theory and physical mechanisms of various heat transfer enhancement techniques to their applications. Research of emerging techniques using new interfacial materials, nanofluids, micro-and nano-structures, microchannels, and new compound enhancement techniques incorporating conventional and new techniques becomes popular.However, there are big challenges in understanding the mechanisms, engineering design methodology and applications with these emerging techniques. Many aspects are urgently needed to be investigated and developed to achieve systematic theory, mechanisms and design methodology for applications in thermal processes, energy storage, renewable energy, decarbonized heating and cooling and many industrial and civil sectors.

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Optimization of the Louver Fin-and-Tube Heat Exchangers-a Parametric Approach

Cited by 13 publications

References 37 publications

Multi-Objective Optimization of External Louvers in Buildings

Multi-Objective Optimization of External Louvers in Buildings

Numerical investigation of louver edges effect on the performances of louvered fin compact heat exchanger

Heat Transfer Enhancement-a Brief Review of Literature in 2020 and Prospects

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