PIV experimental investigation of entrance configuration on flow maldistribution in plate-fin heat exchanger

Wen, Jia; Li, Yanzhong; Zhou, Aimin; Zhang, Ke; Wang, Jiang

doi:10.1016/j.cryogenics.2005.10.010

Cited by 34 publications

(9 citation statements)

References 10 publications

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“…Wen et al [18,19] designed a baffle with small holes in the header to enhance the flow uniformity and conducted CFD simulation and particle image velocimetry (PIV) experiments under the same conditions. Wasewar et al [20] proposed a modified header configuration.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Header Structure Improvement in a Plate‐Fin Heat Exchanger

et al. 2016

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In order to improve the flow uniformity in a plate-fin heat exchanger (PFHE), a modified header structure with a plain baffle inside is proposed. Flow distribution and pressure drop in the header were studied by numerical methods. The results show that the modified header is highly efficient in improving the flow uniformity with negligible pressure drop increase. A performance effectiveness factor was introduced to predict the effects of the modified structure on the performance of the PFHE. Influences of baffle structure parameters on modified structure performances were further discussed. The modified header structure can effectively improve the performance of a PFHE.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Header Structure Improvement in a Plate‐Fin Heat Exchanger

et al. 2016

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“…So, baffles having smaller holes near the inlet axis and larger holes away from the inlet axis are proposed to improve flow distribution . It has been experimentally shown that flow distribution in plate and fin heat exchangers can be improved by using punched baffles …”

Section: Introductionmentioning

confidence: 99%

“…[3] It has been experimentally shown that flow distribution in plate and fin heat exchangers can be improved by using punched baffles. [13,14] Plate and fin heat exchangers having headers with a two-stage-distributing structure are also proposed. There are punched holes between two stages that reduce flow nonuniformity of the first header.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations to evaluate basic geometrical shapes as headers for equal liquid flow distribution

Darekar

Singh

Shenoy

et al. 2014

Asia-Pacific J Chem Eng

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The study presents computational fluid dynamics (CFD) simulations for evaluation of basic geometrical shapes as headers for equal liquid flow distribution. The headers that have been evaluated are conical header, cylindrical header, pyramidal header, rectangular header and spherical header. The computational approach used in the study has been validated by comparing predictions of numerical simulations with experimental results for a cylindrical header. The effects of volume of header, flow rate, diameter of outlets and pressure imbalance at outlets on flow distribution have been studied. At low flow rates, there is no significant difference in the performance of the headers of different geometrical shapes. At higher flow rates, spherical header is found to be better. The possibility of ensuring equal flow distribution by having outlets of varying cross‐sectional area is discussed. The results reported in the study provide useful insights relevant for header design problems. © 2014 Curtin University of Technology and John Wiley & Sons, Ltd.

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“…Wen et al 18, 19 designed a baffle with small holes in the header to enhance the flow uniformity and conducted CFD simulation and particle image velocimetry (PIV) experiments under the same conditions. Wasewar et al 20 proposed a modified header configuration.…”

Section: Introductionmentioning

confidence: 99%

Reducing insulin prescription errors in hospital: more stick than carrot?

et al. 2013

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In order to improve the flow uniformity in a plate‐fin heat exchanger (PFHE), a modified header structure with a plain baffle inside is proposed. Flow distribution and pressure drop in the header were studied by numerical methods. The results show that the modified header is highly efficient in improving the flow uniformity with negligible pressure drop increase. A performance effectiveness factor was introduced to predict the effects of the modified structure on the performance of the PFHE. Influences of baffle structure parameters on modified structure performances were further discussed. The modified header structure can effectively improve the performance of a PFHE.

show abstract

PIV experimental investigation of entrance configuration on flow maldistribution in plate-fin heat exchanger

Cited by 34 publications

References 10 publications

Numerical Analysis of Header Structure Improvement in a Plate‐Fin Heat Exchanger

Numerical Analysis of Header Structure Improvement in a Plate‐Fin Heat Exchanger

Numerical simulations to evaluate basic geometrical shapes as headers for equal liquid flow distribution

Reducing insulin prescription errors in hospital: more stick than carrot?

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