Single- and multi-objective optimization of a plate-fin heat exchanger with offset strip fins adopting the genetic algorithm

Song, Rui; Cui, Mengmeng

doi:10.1016/j.applthermaleng.2019.113881

Cited by 43 publications

(18 citation statements)

References 26 publications

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“…Other interesting topics include optimizing the entire system [25,26] or adopting the total annual cost [27] as the objective function. However, as from our previous research [28], the single optimization with the objective function of the modified entropy generation number coordinates the performance of the heat exchanger in both economic and thermodynamic aspects.…”

Section: Introductionmentioning

confidence: 91%

“…Based on different correlations of heat transfer and flow friction, such as the Manglik and Bergles correlation [27,29] and the Joshi and Webb correlation [30], various optimization algorithms have been employed for the optimization of plate-fin heat exchangers with offset strip fins, including the fast and elitist non-dominated sorting genetic-algorithm (NSGA-II) [31], the particle swarm optimization (PSO) algorithm [32], the imperialist competitive algorithm (ICA) [33], and the harmony search algorithm [34]. In addition to the development of more efficient algorithms, it is of great importance to adopt commonly accurate formulas [6] for heat exchanger optimization [28], for which the experimentally validated computational fluid dynamic simulation approach [25,26,35,36] has been widely used for the improvement of heat transfer and friction correlations in applications of different geometries and operating conditions.…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive performance investigation and optimization of a plate fin heat exchanger with wavy fins

Cui

Song

2022

Therm sci

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As the pressure drop and pump power increase with the enhancement of heat transfer, it is of great value to investigate the comprehensive performance of the heat exchanger based on common accurate correlations of heat transfer and flow friction. This paper adopts a generalized air-side thermal-hydraulic correlation to study the comprehensive performances of the plate fin heat exchanger with wavy fins. To better understand the fin characteristics, performance indexes under the same flow rate, pressure drop and pump power are employed to estimate the comprehensive flow and heat transfer performances. The nonlinear optimization problem is established in consideration of the multiple independent variables with the maximum effectiveness or the minimum modified entropy generation number as the optimization objective function, which is solved by the genetic algorithm. Comparative analysis is conducted for results obtained from the parametric analysis and heat exchanger optimization, indicating that the objective function of the modified entropy generation number is effective for the design optimization of the comprehensive performance.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Comprehensive performance investigation and optimization of a plate fin heat exchanger with wavy fins

Cui

Song

2022

Therm sci

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“…Today, with respect to advancements in technology, such as industrial processes, the need for high-efficient exchangers is felt more than ever. In recent studies, to optimize procedural and geometrical parameters and attain the maximum efficiency and minimum pressure drop in heat exchangers, the researchers have investigated geometrical, thermal, and hydraulic relations that are associated with each one of these exchangers and appropriately select the optimization algorithm as a new approach to the efficiency enhancement of heat exchangers [1][2][3][4][5][6]. Zarea et al [7] have optimized a plate-fin heat exchanger by considering 7 parameters of optimization (the hot and cold inflow length, number of fin layers, fin frequency, fin height, fin length, and fin thickness) and by maximizing the efficacy of the exchanger and minimizing the entropy production through the ɛ-NTU (Number of Transfer Units) method and the Bees Algorithm.…”

Section: Introductionmentioning

confidence: 99%

Design and thermal-hydraulic optimization of a shell and tube heat exchanger using bees algorithm

et al. 2022

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The present study modifies the structural design of a shell-and-tube heat exchanger (STHE) by considering two key parameters such as the maximization of the overall heat transfer coefficient and minimization of the total pressure drop. Five geometric design variables which include the tube inside diameter, tube outside diameter, pitch size, baffle spacing, and the tube length are investigated for optimization. The governing equations for design and optimization of the STHE are evaluated; and the optimum design parameters are obtained by Bees Algorithm (BA). The selection of the important design parameters to achieve the proper design is evaluated by fixing each of these parameters, while the other the design parameters are selected as variable to optimize the effectiveness. Compared with the original STHE, the overall heat transfer coefficient is increased by 22.78 % with the minimum increase in the total pressure drop by 1.8%.

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“…Researchers have always been looking for techniques to improve the thermohydraulic performance of the thermal systems (Sarafraz and Safaei, 2019; Goodarzi et al , 2019; Sarafraz et al , 2019; Mat et al , 2020; Bahiraei et al , 2019; Arasteh et al , 2019). Plate-fins with various configurations such as perforated (Zhou et al , 2019; Chingulpitak et al , 2019), louvered (Okbaz et al , 2020; Okbaz et al , 2018), wavy (Khoshvaght-Aliabadi et al , 2016; Wen et al , 2019), offset strip (Hao et al , 2019; Song and Cui, 2019), corrugated (Gürel, 2020; Islam et al , 2020; Gholami et al , 2019; Khoshvaght-Aliabadi et al , 2018), have been widely used in the heat exchange systems to enhance the thermal performance of them. A perforated chevron plate-fin (PCPF), has high efficiency which can intensify the fluid mixing and enhance the heat transfer due to repetitive corrugations and can also compensate for the pressure drop due to perforations as compared to a plain plate-fin.…”

Section: Introductionmentioning

confidence: 99%

Assessment of vortex generator shapes for enhancing thermohydraulic performance of fluid flow in a channel equipped with perforated chevron plate-fin

Barzoki

Sheikhzadeh

Khoshvaght-Aliabadi

et al. 2021

HFF

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Purpose The purpose of this paper is to investigate thermohydraulic characteristics of turbulent flow of water (4,000 = Re = 10,000) in a rectangular channel equipped with perforated chevron plat-fin (PCPF) with different vortex generators (VGs) shapes. Design/methodology/approach First, three general shapes of VGs including rectangular, triangular and half circle, are compared to each other. Then, the various shapes of rectangular VGs, (horizontal, vertical and square) and triangular VGs, (forward, backward and symmetric) are evaluated. To comprehensively evaluate the thermohydraulic performance of the PCPF with various VG shapes, the relationship between the Colburn factor and the friction factor (j/f) is presented, then a performance index (η) is applied using these factors. Findings Results show that the enhanced models of the PCPF, which are equipped with VGs, have higher values of j/f ratio and η as compared with the reference model (R). Further, the half-circle VG with the lowest pressure drop values (about 2.4% and 4.9%, averagely as compared with the S and ST vortex generators), shows the highest thermohydraulic performance among the proposed shapes. The maximum of performance index of 1.14 is found for the HC vortex generator at Re = 4,000. It is also found that the square and forward triangular VGs, have the best thermohydraulic performance among the rectangular and triangular VGs respectively and the highest performance index of 1.13 and 1.11 are reported for these VGs. Originality/value The thermohydraulic performance of the PCPF with different vortex generators VGs shapes have been investigated.

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Single- and multi-objective optimization of a plate-fin heat exchanger with offset strip fins adopting the genetic algorithm

Cited by 43 publications

References 26 publications

Comprehensive performance investigation and optimization of a plate fin heat exchanger with wavy fins

Comprehensive performance investigation and optimization of a plate fin heat exchanger with wavy fins

Design and thermal-hydraulic optimization of a shell and tube heat exchanger using bees algorithm

Assessment of vortex generator shapes for enhancing thermohydraulic performance of fluid flow in a channel equipped with perforated chevron plate-fin

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