A Three-Dimensional Numerical and Multi-Objective Optimal Design of Wavy Plate-Fins Heat Exchangers

Yu, Chao; Xue, Xiangyao; Shi, Kui; Shao, Mingzhen

doi:10.3390/pr9010009

Cited by 12 publications

(4 citation statements)

References 34 publications

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“…The standard k model was used for simulation calculation in order to obtain accurate simulation results. The average time domain of the Navier-Stokes equations to obtain the continuity and momentum equations for incompressible flow is as follows [18][19][20] (1) Other parameters in the standard k-ε model (Formulas ( 5) and ( 6)) are as follows: C μ = 0.09; C 1ε = 1.44, C 2ε = 1.92; C 3ε = tanh|v/u|; a 2 is the kinetic energy of sound propagation in a fluid; u and v are two mutually perpendicular velocity components.…”

Section: Geometric Model and Boundary Conditionsmentioning

confidence: 99%

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Study on the blood flow characteristics of venous needle retention with different super-hydrophobic surface structures

Liu

Deng

et al. 2023

Med Biol Eng Comput

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A venous retention needle, as an implanted device, is very likely to cause thrombosis. In view of the thrombosis phenomenon caused by retention needles, this paper compares the influence of different superhydrophobic surface retentions on blood flow. Compared with other superhydrophobic bulges, the fluid velocity of the four-prism bulge is the highest (0.08 m/s), and the vorticity and shear force of the hemispherical bulge are higher. A large number of vortices can inhibit thrombosis better. The tire vortices generated in the superhydrophobic convex grooves are important vortices to inhibit thrombosis. The enhancement and development of the tire vortex weakens the resistance near the wall of the needle and reduces the probability of platelet aggregation. The superhydrophobic surface structure studied in this paper can not only provide guidance for the design of venous retention needles with better performance but also provide corresponding technical support for the development of human implantation devices. Graphical Abstract

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Section: Geometric Model and Boundary Conditionsmentioning

confidence: 99%

“…The standard k model was used for simulation calculation in order to obtain accurate simulation results. The average time domain of the Navier–Stokes equations to obtain the continuity and momentum equations for incompressible flow is as follows [ 18 – 20 ]: …”

Section: Geometric Model and Boundary Conditionsmentioning

confidence: 99%

Study on the blood flow characteristics of venous needle retention with different super-hydrophobic surface structures

Liu

Deng

et al. 2023

Med Biol Eng Comput

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“…Khodabandeh E et al used the finite volume method and two-phase mixing model to simulate the turbulent flow and heat transfer of water silver nanofluid in a spiral heat exchanger with elliptic valves. The results showed that the flow and heat transfer characteristics depended on the height of the pillow, the concentration of nanoparticles and the Reynolds number [29]. Hwang et al [30] designed a plate heat exchanger (PHE) with a dimple-protrusion-patterned surface and conducted an experimental study on it.…”

Section: Introductionmentioning

confidence: 99%

Study on Heat Transfer Synergy and Optimization of Capsule-Type Plate Heat Exchangers

Yu,

Shao,

Zhang

et al. 2024

Processes

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An efficient and accurate method for optimizing capsule-type plate heat exchangers is proposed in this paper. This method combines computational fluid dynamics simulation, a backpropagation algorithm and multi-objective optimization to obtain better heat transfer performance of heat exchanger structures. For plate heat exchangers, the heat transfer coefficient j and friction coefficient f are a pair of contradictory objectives. The optimization of capsule-type plate heat exchangers is a multi-objective optimization problem. In this paper, a backpropagation neural network was used to construct an approximate model. The plate shape was optimized by a multi-objective genetic algorithm. The optimized capsule-type plate heat exchanger has lower flow resistance and higher heat exchange efficiency. After optimization, the heat transfer coefficient is increased by 8.3% and the friction coefficient is decreased by 14.3%, and the heat transfer effect is obviously improved. Further, analysis of flow field characteristics through field co-ordination theory provides guidance for the further optimization of plates.

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“…Do Nascimento et al [16] combine a CFD simulation of fins with neural networks to optimize the pressure drop and heat transfer characteristics of fins in a two-stream PFHE. In a similar approach, Yu et al [17] use a CFD simulation with radical basis functions to employ the detailed simulation model of wavy fins in an optimization routine using a multi-objective genetic algorithm. Cui and Song [18] also focus on the heat transfer and pressure drop performance of wavy fins.…”

Section: Introductionmentioning

confidence: 99%

A Framework for Multi-Objective Optimization of Plate-Fin Heat Exchangers Using a Detailed Three-Dimensional Simulation Model

et al. 2021

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The design of a multi-stream plate-fin heat exchanger is a highly integrated task with multiple opposing objectives and many degrees of freedom. This work shows how it can be fully or partially automated by the combination of a detailed three-dimensional simulation model and an optimization routine. The desired task is formulated as the target of a multi-objective optimization and solved using a genetic algorithm. The workflow is presented using a cryogenic plate-fin heat exchanger with four process streams. The design is optimized towards high efficiency, low pressure drop, and low unit weight by adjusting the outer geometry, the inlet and outlet distributor configuration, and the detailed stream geometry. A detailed analysis of the Pareto-set gives a good overview of possible solutions, and the optimization routine can automatically find a feasible design with a reasonable tradeoff between the objectives. All elements of the framework are implemented in open source software. A highlight of this research is that a very comprehensive and detailed simulation model is employed in the optimization framework. Thus, the presented method can be easily adjusted to fit the needs of other engineering tasks.

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A Three-Dimensional Numerical and Multi-Objective Optimal Design of Wavy Plate-Fins Heat Exchangers

Cited by 12 publications

References 34 publications

Study on the blood flow characteristics of venous needle retention with different super-hydrophobic surface structures

Study on the blood flow characteristics of venous needle retention with different super-hydrophobic surface structures

Study on Heat Transfer Synergy and Optimization of Capsule-Type Plate Heat Exchangers

A Framework for Multi-Objective Optimization of Plate-Fin Heat Exchangers Using a Detailed Three-Dimensional Simulation Model

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