Experimental and Numerical Studies on Shell-Side Performance of Three Different Shell-and-Tube Heat Exchangers With Helical Baffles

Chen, Guidong; Zeng, Min; Wang, Qiuwang

doi:10.1615/jenhheattransf.2011001881

Cited by 17 publications

(3 citation statements)

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“…Sanaye and Hajabdollahi (2010) used in their investigation of heat exchangers the Belle-Delaware method to obtain maximum effectiveness and minimum total cost. Chen et al (2011) have developed a comparative study between two continuous and discontinuous helical baffles in heat exchangers; this study has shown that, the overall heat transfer coefficient of the first geometry is poorer than that of the second for the same mass flow. Wang et al (2011) investigated the heat transfer and flow resistance in the shell and tube heat exchanger with two sections baffles.…”

Section: Introductionmentioning

confidence: 99%

Turbulent forced convection in a shell and tube heat exchanger equipped with novel design of wing baffles

Youcef

Saïm

Öztop

et al. 2019

HFF

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Purpose This work presents a numerical study of the dynamic and thermal behavior of a turbulent flow in a shell and tube heat exchanger equipped with a new design of baffle type wing. The implementation of this type of baffle makes it possible to lengthen the path of the fluid in the shell, to increase the heat flux exchanged on the one hand and is to capture the weakness of the shell and tube heat exchanger with segmental baffles on the other hand. Design/methodology/approach This paper aims to analyze numerically the thermo-convective behavior of water using CFD technique by solving the conservation equations of mass, momentum and energy by the finite volume method based on the SIMPLE algorithm for coupling velocity-pressure. To describe the turbulence phenomenon, the Realizable k–ε model is employed. The analysis is done for different mass flow rates. The parameters studied are: the fluid outlet temperature, the average heat transfer coefficient, the pressure drop, the total heat transfer rate, the effect of the geometric shape of the baffle on the thermal behavior. The purpose of this study is to propose a new design of a shell and tube heat exchanger with a high heat transfer coefficient and a lower pressure drop compared to a shell and tube heat exchanger with transverse and segmental baffles. Findings The results showed that the use of the wing baffles enhanced the heat transfer coefficient significantly and reduced the friction coefficient. Compared with segmental baffles, the wing baffles are 11.67, 18.53 and 11.5 per cent lower in the pressure drop and 1.79, 1.9 and 2.39 per cent higher in the Nusselt number for the three mass flow rates 0.5, 1 and 2 kg/s, respectively. Originality/value The originality of this work lies in proposing a three-dimensional analysis for a novel heat exchanger.

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Section: Introductionmentioning

confidence: 99%

Turbulent forced convection in a shell and tube heat exchanger equipped with novel design of wing baffles

Youcef

Saïm

Öztop

et al. 2019

HFF

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“…Chen et al [27] numerically studied the heat transfer and flow performance of a DCH-STHX, a CH-STHX, and a CMH-STHX by adopting periodic boundary condition. Numerical studies have been conducted on the CMSP-STHXs by Wang et al [28].…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on combined single shell-pass shell-and-tube heat exchanger with two-layer continuous helical baffles

Yang

Zeng

Wang

2015

International Journal of Heat and Mass Transfer

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“…The results of water-water heat transfer performance tests [10,11] demonstrated that the circumferential overlap trisection scheme with an inclined angle of 20° is better than other heat exchangers including the segmental one in terms of both the shell-side heat transfer coefficient and the shell-side heat transfer coefficient per unit pressure drop. So far, different schemes were studied by variety researchers [12][13][14][15][16][17][18][19], but there emerged the question which one performs better, the continuous helical baffle scheme or the non-continuous one, the quadrant baffle scheme or the trisection baffle one?…”

Section: Introductionmentioning

confidence: 99%

Comparison of heat transfer performances of helix baffled heat exchangers with different baffle configurations

Dong

Chen

2015

Chinese Journal of Chemical Engineering

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Experimental and Numerical Studies on Shell-Side Performance of Three Different Shell-and-Tube Heat Exchangers With Helical Baffles

Cited by 17 publications

References 0 publications

Turbulent forced convection in a shell and tube heat exchanger equipped with novel design of wing baffles

Turbulent forced convection in a shell and tube heat exchanger equipped with novel design of wing baffles

Numerical investigation on combined single shell-pass shell-and-tube heat exchanger with two-layer continuous helical baffles

Comparison of heat transfer performances of helix baffled heat exchangers with different baffle configurations

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