CFD simulation on inlet configuration of plate-fin heat exchangers

Zhang, Zhe; Li, Yanzhong

doi:10.1016/s0011-2275(03)00179-6

Cited by 125 publications

(42 citation statements)

References 7 publications

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“…Fig. 1 shows a schematic view of the plate-fin heat exchanger with the main geometrical characteristics listed [8]. The distributive section of the plate-fin heat exchanger has dimensions of 200 × 250 × 178 mm, Fig.…”

Section: Design/description Of the Plate-fin Heat Exchangermentioning

confidence: 99%

“…1a), which is proportional to the plate-fin heat exchanger of 3200 m 3 h -1 air separation system produced by the Kaifeng Air Separation Group Co. Ltd., P.R. China [8]. The inlet tube of the header is 40 mm in diameter and the header is 250 mm in length.…”

Section: Design/description Of the Plate-fin Heat Exchangermentioning

confidence: 99%

“…They found that reverse flows would occur for poor header design and that a perforated grid can improve the fluid flow distribution. However, only a few others have studied the fluid flow maldistribution in heat transfer equipment using the computational fluid dynamics simulation technique [8]. Jiao et al [9] investigated the combined effects of the distributor inlet angle, configuration parameter and header configuration on the flow velocity distribution, both experimentally and theoretically.…”

Section: Introductionmentioning

confidence: 99%

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CFD Simulation of Flow Distribution in the Header of Plate‐Fin Heat Exchangers

et al. 2007

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The flow distribution through a plate-fin heat exchanger is studied by using a computational fluid dynamics (CFD) code, FLUENT. The flow distribution through any heat exchanger affects its performance. In designing a heat exchanger, it is assumed that the fluid is uniformly distributed through the heat exchanger core. In practice, however, it is impossible to distribute fluid uniformly, because of an improper inlet configuration, imperfect design, and a complex heat transfer process. The CFD simulation of the flow distribution in the header of a conventional plate-fin heat exchanger is presented. It is found that the flow maldistribution is very serious in the y-direction of the header. A modified header is proposed and simulated using CFD. The modified header configuration has a more uniform flow distribution than the conventional header configuration. Hence, the efficiency of the modified heat exchanger is seen to be higher than that of the conventional heat exchanger.

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Section: Design/description Of the Plate-fin Heat Exchangermentioning

confidence: 99%

Section: Design/description Of the Plate-fin Heat Exchangermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CFD Simulation of Flow Distribution in the Header of Plate‐Fin Heat Exchangers

et al. 2007

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“…It combines a detailed header simulation based on commercial computational fluid dynamics (CFD) code (Fluent) and a robust effectiveness-based finite volume tube-side heat transfer and refrigerant flow modeling tool. Also in [33] simulation has been done to predict the flow distribution in the inlet header of plate-fin heat exchangers. Authors found out that flow maldistribution is strongly pronounced at greater Reynolds number and two modified headers with a twostage-distributing structure were recommended to improve the distribution.…”

Section: Introductionmentioning

confidence: 99%

Selected studies of flow maldistribution in a minichannel plate heat exchanger

Dąbrowski¹,

Klugmann²,

Mikielewicz³

2017

Archives of Thermodynamics

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Analysis of the state of-the-art in research of minichannel heat exchangers, especially on the topic of flow maldistribution in multiple channels, has been accomplished. Studies on minichannel plate heat exchanger with 51 parallel minichannels with four hydraulic diameters, i.e., 461 µm, 574 µm, 667 µm, and 750 µm have been presented. Flow at the instance of filling the microchannel with water at low flow rates has been visualized. The pressure drop characteristics for single minichannel plate have been presented along with the channels blockage, which occurred in several cases. The impact of the mass flow rate and channels' cross-section dimensions on the flow maldistribution were illustrated.

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“…Lalot et al [5] used the computer code STAR-CD to study the flow maldistribution in an electric heater. Zhang and Li [7] used FLUENT to predict the flow distribution in plate-fin heat exchangers. Fei [2] used the mixture model implemented in FLUENT to simulate a two-phase flow distribution in the header.…”

Section: Introductionmentioning

confidence: 99%

CFD simulation of a stratified flow at the inlet of a compact plate heat exchanger

Ahmad¹,

Fourmigué²,

Mercier³

et al. 2007

WIT Transactions on Engineering Sciences, Vol 56

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The work described in this paper considers 3D CFD (computational fluid dynamics) simulations of an adiabatic stratified liquid-vapor flow at the inlet of a compact plate heat exchanger using the commercial CFD code "FLUENT" and an in-house code "NEPTUNE 3D" developed by CEA and EDF. An experimental loop is built up that represents a compact plate heat exchanger in which the liquid and vapor flow rates in the different channels are measured and the flow inside the cylindrical distributor of diameter greater than that of the inlet tube can be visualized. The numerical predictions showed the good agreement with the experimental measurements. The interfacial shear stress was calculated in a steady stratified flow and compared with the computed shear stresses by the two codes.

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CFD simulation on inlet configuration of plate-fin heat exchangers

Cited by 125 publications

References 7 publications

CFD Simulation of Flow Distribution in the Header of Plate‐Fin Heat Exchangers

CFD Simulation of Flow Distribution in the Header of Plate‐Fin Heat Exchangers

Selected studies of flow maldistribution in a minichannel plate heat exchanger

CFD simulation of a stratified flow at the inlet of a compact plate heat exchanger

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