Full Model Simulation of Shellside Thermal Augmentation of Small Heat Exchanger with Two Tube Passes

You, Yonghua; Xiao, Shuifang; Pan, Ni; Deng, Zhaoqun

doi:10.1080/01457632.2017.1358484

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…In the numerical investigation of STHXs, it is crucial to build an appropriate numerical model. There are four typical models commonly used in current numerical simulations of STHXs, which are unit model, periodic model, porous model, and whole model [25][26][27]. In the shell-side configuration, the geometry changes repeatedly along the flow direction, resulting in a periodically fully developed flow pattern [28].…”

Section: Introductionmentioning

confidence: 99%

Effect of shell on performance of heat exchanger with trefoil-hole baffle

Wang

Du²,

et al. 2022

THERM SCI

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The periodic whole cross-section model and the periodic unit duct model were established, and the differences between two models were discussed. The effects of shell wall and baffle edges on the shell side performance of the heat exchanger with trefoil-hole baffle were investigated using both models. Thermodynamics in the shell side and heat transfer coefficient of each tube in different position were discussed. It is found that disparities between the results of the two numerical models decreases with the increase of the inner shell diameter. When the shell diameter is 0.8 m, the disparity is less than 10%, which means that the effects of the shell wall and the edges of baffles become weaker. When the shell diameter is less than 0.8 m, modified correlations for the periodic unit duct model are introduced to quantitatively reveal the effects of shell wall and baffle edges on thermodynamics with the variations of the shell diameter and baffle spacing. The fluid flow velocities at specific locations on the shell side were measured using a Laser Doppler Velocimeter system. The accuracy of the numerical simulation method was verified by the experimental results.

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Section: Introductionmentioning

confidence: 99%

Effect of shell on performance of heat exchanger with trefoil-hole baffle

Wang

Du²,

et al. 2022

THERM SCI

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Numerical Simulations of Shell and Tube Heat Exchanger with Segmental, Trefoil and Segmented Trefoil Baffles for Performance Comparison

Saad

Munir

Kamran

2022

Heat Transfer Engineering

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Numerical and Experimental Investigation of Tube Bundle Heat Exchanger Arrangement Effect on Heat Transfer Performance in Turbulent Flows

ASLAN,

TAYMAZ,

ÇAKIR

et al. 2023

Isı Bilimi Ve Tekniği Dergisi

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This study examines the friction factor, convective heat transfer, and area goodness factor of both inline and staggered tube bundles. The Finite Volume Method (FVM) is used for numerical simulations. Experimental and numerical approaches are utilized. Both 18.0 mm and 21.6 mm longitudinal distances are investigated. It is recommended to use ratio coefficients to reduce computation time. The proportion coefficients are used to obtain predictions for the three-dimensional cases based on the two-dimensional results or to transfer the 2D results to 3D. In addition, three turbulence models were utilized and compared within an Unsteady Reynolds Averaged Navier-Stokes (URANS) formulation. Experimental results validated numerical predictions. The thermal boundary conditions consist of a constant inlet temperature and a uniform heat flux on the support plate. Reynolds number is changed from 989 to 6352, while the Prandtl number remains at 0.70. Nusselt number and friction factor values have been observed to increase with increasing Reynolds number in all geometric configurations. The staggered configurations result in greater Nusselt number and friction factor values compared to inline configurations. The Nusselt number and pressure drop experience negative and positive effects, respectively, as the distance between rows decreases. SST turbulence models typically predict reasonable outcomes for all geometric configurations.

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Full Model Simulation of Shellside Thermal Augmentation of Small Heat Exchanger with Two Tube Passes

Cited by 3 publications

References 23 publications

Effect of shell on performance of heat exchanger with trefoil-hole baffle

Effect of shell on performance of heat exchanger with trefoil-hole baffle

Numerical Simulations of Shell and Tube Heat Exchanger with Segmental, Trefoil and Segmented Trefoil Baffles for Performance Comparison

Numerical and Experimental Investigation of Tube Bundle Heat Exchanger Arrangement Effect on Heat Transfer Performance in Turbulent Flows

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